Future Homes Standard

Introduction

The Future Homes Standard (FHS) is a forthcoming update to the energy requirements for new homes in England. In plain terms, it is designed to make new-build homes far more energy efficient, ready for low‑carbon heating, and cheaper to run—so that we don’t lock in decades of avoidable bills and emissions the moment a home is built.

A plain‑English definition of the Future Homes Standard

At its core, the Future Homes Standard is the government’s route to tightening Part L (Conservation of fuel and power) of the Building Regulations for new dwellings in England. It aims for new homes to emit around 75–80% less carbon compared with homes built to the 2013 regulatory baseline.

For most households, you’ll “feel” the Future Homes Standard through what becomes normal in a new home:

• Low‑carbon heating (most commonly heat pumps, sometimes heat networks) rather than a gas boiler.

• Higher fabric performance (better insulation, fewer draughts, fewer cold spots).

• Designed‑in ventilation that keeps air healthy while the home is more airtight.

• On‑site renewable electricity generation becoming the default expectation (most commonly rooftop solar PV, with practical exceptions).

Why it exists: the “build it right once” logic

Homes last for many decades. If a home is built with a gas boiler, weak insulation and poor detailing, it can be expensive and disruptive to put right later. The policy goal is to avoid building “tomorrow’s retrofit problem” and instead deliver homes that are comfortable and efficient from day one.

This matters at a national level too. Heating homes is a major contributor to UK emissions, largely because most homes are heated by burning natural gas. The National Audit Office notes that heating the UK’s 28 million homes accounted for 18% of UK greenhouse gas emissions in 2021 (mainly from burning natural gas for heating and hot water).

Why it matters to you as a buyer, self‑builder, or homeowner living nearby

Even if you’re not planning to build, the Future Homes Standard still matters because it changes what “normal” looks like in new housing:

• Lower running costs (in principle): lower heat demand plus the ability to generate some electricity on site can reduce bills, although exact savings depend on tariffs, behaviour, and future energy prices.

• Comfort and health: warmer internal surfaces reduce cold draughts and can help manage condensation risk when ventilation is designed and used properly.

• Fewer nasty surprises later: when standards force good detailing and verification, there is less reliance on “best intentions” and more on evidence that key elements were built and commissioned properly.

One important reassurance: this is not a retrofit obligation

The Future Homes Standard is targeted at new homes. It does not create a legal requirement for existing homeowners to rip out a working boiler or rebuild their walls to new‑build levels. You may see wider reforms happening alongside this (such as changes to how homes are assessed and how EPCs are presented), but the Future Homes Standard itself is aimed at what gets built next.

The latest timeline

If you’ve seen “Future Homes Standard (early 2026)” mentioned, it’s understandable to wonder whether that means homes built in early 2026 must already comply. In practice, “early 2026” has mainly referred to the expected timing for government publications and decisions, not the point at which every site must instantly change. The critical dates for “when a home must comply” depend on the final regulations and their transitional arrangements.

Where we are as of 3 March 2026

As of early March 2026:

• Industry guidance and sector trackers have been expecting the government response to the detailed Future Homes Standard consultation in early 2026, with regulations anticipated to come into force later (commonly described as late 2026).

• Sector assumptions published by the Future Homes Hub (based on statements and planning) have pointed to legislation laid in December 2025, coming into effect in December 2026, with a 12‑month transitional period running to December 2027.

• Trade press commentary has echoed a similar shape: final regulations published in 2026, with a December 2026 “fully into effect” milestone and transition to December 2027.

It’s also worth noting the government’s June 2025 press release stated the Future Homes Standard would be published in autumn 2025. The fact that the sector is still discussing early 2026 publications tells you there has been slippage in communications and/or timing—one reason you should treat “early 2026” as an indicator, not a hard compliance start date.

Key milestones at a glance

The Future Homes Standard has been developed in stages, including an “interim uplift” to Part L that already took effect in June 2022.

What “early 2026” means for different people

If you’re buying a new build completed in 2026:
Some 2026-completion homes may still be designed under the current Part L uplift (effective from June 2022), depending on when the development’s building control applications were made and the eventual FHS transitional rules. You should not assume that “completed in 2026” automatically equals “Future Homes Standard compliant”.

If you’re self‑building or commissioning a one‑off home:
“Early 2026” is the moment to treat specifications seriously. Even if you can legally proceed under existing rules, your design team will increasingly specify the kinds of measures aligned with FHS (heat pumps, solar PV, stronger fabric, and robust ventilation) because supply chains, skills, and lender/buyer expectations tend to move ahead of the legal deadline.

If you’re just trying to understand what to expect:
The most practical approach is to treat 2026 as a year of clarification and finalisation, and late‑2026/2027 as the likely “hard” period when compliance becomes unavoidable for most new projects (subject to final law).

Who it applies to

The Future Homes Standard can sound like a broad national promise, but in legal terms it is much more specific: it is a change to Building Regulations energy requirements for new homes—primarily framed as an update to Part L for England. Understanding who is in scope helps you ask the right questions and avoid being misled by marketing language.

The simplest way to think about scope

A useful rule of thumb is:

• In scope: newly constructed homes in England that need to demonstrate compliance with Part L (and related requirements).

• Not the main target: existing homes, normal boiler replacements, and routine renovations (though renovation work still has to meet current Part L requirements where relevant).

This is why you’ll often see the Future Homes Standard discussed alongside “new build”, “self‑build”, and “development sites”, rather than ordinary home improvements.

England, UK, and devolved nations: avoid a common confusion

People often say “UK building regs” casually, but Building Regulations are devolved. The sources most directly linked to the FHS describe it as a forthcoming update to Part L of the Building Regulations for England.

That doesn’t mean the rest of the UK stands still—Scotland, Wales and Northern Ireland all have their own regulatory pathways and programmes. But when you’re reading about the Future Homes Standard specifically, treat it as England-focused, unless a source clearly says otherwise.

What counts as a “new home” for these purposes?

For consumers, “new home” usually means:

• A newly built house or flat sold for first occupation.

• A self‑build or custom build home (even if you never plan to sell it).

• Social housing new‑builds, housing association developments, and private developer builds—because Building Regulations apply broadly across tenure.

What about conversions, refurbishments, and extensions?

The Future Homes Standard is primarily aimed at new dwellings, but consumers often encounter edge cases:

• Major renovations, extensions, loft conversions: you generally won’t be forced into “full Future Homes Standard”, but you still must comply with current building regulations for the work you’re doing (including energy performance requirements for specific elements).

• New dwellings created by conversion (for example, a barn conversion creating a “new dwelling”): the detail can become technical quickly, and the applicable route can vary with the type of work. In these cases, it’s sensible to get professional advice early rather than rely on headlines.

How scope shows up when you’re buying (and how to avoid being misled)

Because the Future Homes Standard is a regulatory framework, you may not see “FHS compliant” clearly written in sales materials. Instead, it tends to show up through features:

• Heat pump or heat network rather than a gas boiler.

• Solar PV installed as standard (where practical).

• Mechanical ventilation (MEV or MVHR) increasingly common because airtightness expectations rise.

• EPC and handover packs reflecting a more detailed approach to energy performance (especially as HEM reforms progress).

A good buyer mindset is to move away from “Does it have the label?” and towards “Does it have the evidence and the systems a Future Homes Standard-style home should have?”

A reassuring note for neighbours and local communities

When new housing near you is built to stronger energy standards, it can reduce local air pollution from combustion-based heating and improve resilience (for example, better summer comfort through overheating rules). It doesn’t solve every challenge of development, but it does mean new stock is less likely to require disruptive retrofits later.

How compliance is measured

Compliance under the Future Homes Standard is not meant to be a vague promise. It is intended to be demonstrated through a recognised calculation method and verified through building control processes, evidence collection, and commissioning documentation. For consumers, this matters because a “green” specification only delivers if the home is actually built and set up as designed.

What “compliance” usually means in energy regulations

Even without diving into every technical metric, energy compliance for new dwellings typically involves:

• A design-stage assessment (what the home should achieve on paper).

• An as-built assessment (what was actually installed and constructed).

• Evidence that key elements were installed correctly and that building services (heating, ventilation, controls) were commissioned properly.

The Future Homes Standard builds on this structure, but updates both the performance ambition and the way compliance is calculated and evidenced.

The shift toward stronger verification (why “performance gap” concerns matter)

The construction industry has long recognised that there can be a gap between “designed performance” and “in-use reality” when workmanship, detailing, and commissioning are inconsistent. One practical response has been to require more robust evidence during construction.

A key example already in force under Part L (from June 2022) is the requirement for photographic evidence of specified construction details, supporting the as‑built energy report and sign‑off. The Approved Document itself sets out the effective date and transitional arrangements.

Who checks compliance?

In England and Wales, building control functions are carried out by building control bodies. For most buyers, the practical takeaway is: someone independent of the developer should be involved in verifying compliance, and completion documentation should exist.

Under the Future Homes Standard pathway, compliance calculation is expected to increasingly rely on the Home Energy Model delivered through a government platform, which strengthens consistency (everyone uses the same calculation engine).

The Home Energy Model delivery mechanism and why it matters for enforcement

The government’s “Energy Calculation as a Service” (ECaaS) guidance explains that ECaaS provides an API implementation of the Home Energy Model and will become the only valid means to confirm compliance with Part L when referring to the Future Homes Standard. That statement matters: it signals a move toward a single standardised calculation route for regulatory compliance.

For consumers, this means:

• Fewer “black box” differences between different software engines.

• A better chance that compliance results are comparable across builders and sites.

• Less room for accidental (or deliberate) inconsistency in calculation settings.

What evidence and checks are likely to sit behind “this home complies”

While the exact Future Homes Standard evidence pack will be defined in the final regulations and guidance, you should expect to see versions of:

• Energy compliance reports (design and as‑built).

• Air tightness testing and results (where applicable).

• Ventilation commissioning and commissioning certificates.

• Heating system commissioning and user instructions.

• Photographic evidence of key fabric details (already embedded in current Part L practice).

If you’re buying, the point is not to become a building inspector yourself. The point is to ensure there is a paper trail and that you receive the documents that allow you to operate and maintain the home properly.

What enforcement looks like when something goes wrong

In practice, issues usually surface as:

• Bills higher than expected.

• Condensation or mould (often linked to ventilation operation or detailing).

• Overheating in summer.

• Noise complaints related to external units (where heat pumps are used).

• Draughts or cold spots indicating weak airtightness or thermal bridging.

When this happens, the resolution route tends to start with the developer and warranty provider, but documentation is your leverage. If you have commissioning certificates, evidence packs, and completion certificates, it is much easier to demonstrate what was promised and what was delivered.

The Home Energy Model

The Future Homes Standard isn’t only about installing different kit; it is also about changing how we measure a home’s energy performance. That measurement shift matters because the method used to model energy use influences design decisions and, crucially, affects how “compliance” is judged.

What SAP is (and why it’s being replaced)

SAP (the Standard Assessment Procedure) has been the government’s methodology for estimating the energy performance of homes for decades. The government notes SAP was first published in 1993 and underpins multiple policies.

However, government consultation material makes clear that a new model—the Home Energy Model (HEM)—is intended to replace SAP for the energy rating of dwellings and to support modern technology and net‑zero objectives.

What the Home Energy Model is

The Home Energy Model is a calculation methodology designed to assess the energy performance of homes. Government material describes it as a building physics model, under development, intended to replace SAP and support compliance assessment for the Future Homes Standard (and other policy “wrappers” such as EPCs).

One key improvement highlighted in the government’s evaluation is the ability to model interactions between systems and fabric at a half‑hourly time step, which better reflects real patterns of demand and generation—particularly relevant when homes use heat pumps, solar PV, and storage.

ECaaS: why you may hear about it even as a consumer

ECaaS (Energy Calculation as a Service) is a government service that provides an API to the Home Energy Model. The ECaaS guidance explains it is run by MHCLG, applies to England and Wales, and is intended to support statutory uses—including calculating compliance with the Future Homes Standard.

In consumer terms, ECaaS is part of the “plumbing” that makes energy compliance more consistent. You won’t use it day‑to‑day, but it changes how professionals produce compliance documentation.

SAP and HEM will overlap for a period

Government material indicates a “dual running” approach—HEM alongside a version of SAP for a limited period—to allow industry time to adapt and to support continued validation before HEM becomes the sole methodology.

Industry-facing summaries similarly describe a transitional period where compliance can be demonstrated using HEM or an updated SAP version (for example SAP 10.3).

SAP vs Home Energy Model: what changes in plain terms

Below is a simplified comparison focused on what’s meaningful for households and buyers.

The EPC connection: changes happening alongside FHS

A very practical “consumer touchpoint” is the Energy Performance Certificate (EPC). In January 2026, the government opened a consultation on how HEM will be used to produce EPC assessments with new metrics and bands, indicating active reform in parallel with the Future Homes Standard pathway.

This matters because EPCs influence:

• What buyers and renters see at point of transaction.

• How improvements are prioritised.

• How lenders and policymakers may assess property performance over time.

What to do with this information as a member of the public

You don’t need to become an energy modeller. A sensible approach is:

• When buying a new home, ask for the as‑built energy documentation and commissioning certificates (not just marketing claims).

• If self‑building, ensure your designer and assessor are already preparing for HEM‑based compliance workflows.

• If comparing homes, look beyond EPC letters alone and ask how heating, ventilation and solar are specified and commissioned, because that’s where comfort and bills are determined in practice.

Low‑carbon heating

For most people, the most visible Future Homes Standard change is heating. The direction of travel is clear: new homes are expected to use low‑carbon heating, and gas boilers are not expected to meet the Future Homes Standard’s carbon targets. This is a major cultural shift in the UK, where gas central heating has been the default for decades.

What “low‑carbon heating” means under the Future Homes Standard

In government and industry descriptions, low‑carbon heating for new homes generally means:

• Air source heat pumps (ASHPs)

• Ground source (or water source) heat pumps (GSHPs)

• Low‑carbon heat networks (where available and genuinely low carbon)

The June 2025 government announcement explicitly framed future new homes as having low‑carbon heating such as heat pumps and heat networks.

The HEM Guide summary is even more direct: gas boilers “will not meet the standard” and the Future Homes Standard “effectively mandates” heat pumps and solar PV.

Heat pumps: what you should know as a homeowner

Heat pumps work differently from boilers. They run most efficiently when they deliver a steady, lower-temperature heat over longer periods—often through underfloor heating or larger radiators.

A few reassuring truths:

• A correctly designed heat pump system should keep your home comfortably warm, even in winter.

• Many “heat pump horror stories” come down to poor design, poor commissioning, or homes with high heat loss that haven’t been addressed—not the concept itself.

• In a well-insulated new home, heat pump performance is typically easier to achieve than in a leaky older property.

Running cost outcomes depend heavily on the electricity-to-gas price ratio and how well the heat pump is designed and operated. Evidence reviews note heat pumps can be cost-competitive in the right conditions (for example, where an efficient seasonal performance factor is achieved and tariffs support it).

Heat networks: where they fit

Heat networks can be compliant if the heat source is low carbon (for example, large heat pumps, recovered waste heat, or other low-carbon sources). The key consumer point is: heat networks can be excellent or poor depending on design and governance. If you’re buying a home on a network, you should ask about:

• The heat source and how it will decarbonise over time.

• Tariff structure and who sets prices.

• Service standards and maintenance responsibilities.

Comparing low‑carbon heating options in homes

This table is intentionally practical rather than exhaustive.

Grants and support: mostly relevant to existing homes, but still worth knowing

If you’re living in an existing home, the Boiler Upgrade Scheme provides grants to support switching from fossil fuel heating to low-carbon systems. Ofgem’s guidance for property owners states grants of £7,500 are available for air source and ground source heat pumps (and £5,000 for biomass boilers) in England and Wales, with the installer claiming on your behalf.

For new homes built to the Future Homes Standard, the intent is not that homeowners immediately need grants; it’s that the home is designed without fossil heating from the start. Still, the grant scheme is relevant background because it signals national investment in heat pump supply chains and skills.

Practical buyer expectations: what “good” looks like

When low‑carbon heating is done well in a new home, you should expect:

• Quiet, steady heating without big temperature swings.

• Hot water delivered reliably (often with a cylinder rather than combi-boiler style).

• Controls that make sense and are explained at handover.

• A home whose insulation and airtightness support the heating system (heat pumps reward good fabric).

Build quality expectations

The Future Homes Standard is often summarised as “heat pumps and solar”, but the quieter revolution is in the building fabric: insulation levels, airtightness, and the overall quality of detailing. This is where comfort is made or lost. A high-performance heating system can’t compensate for a poorly built envelope—and a strong envelope makes almost any heating system perform better.

What “fabric-first” really means

A fabric-first approach prioritises reducing heat loss through:

• Walls, roofs, floors (insulation continuity matters more than just thickness)

• Windows and doors (frames, spacers, and installation detailing are crucial)

• Junctions (thermal bridging at corners, eaves, lintels and thresholds)

• Airtightness (reducing uncontrolled draughts while ensuring planned ventilation)

The SBH article explicitly describes fabric-first as essential under the FHS and lists enhanced insulation, improved airtightness, and high-performance windows and doors as central.

Airtightness: comfort benefit, but only if ventilation is right

Airtightness can sound alarming if you picture a “sealed box”. In reality, good airtightness is about stopping uncontrolled leaks and draughts so that:

• The home is easier to heat

• Internal surfaces stay warmer (reducing condensation risk)

• Ventilation can be controlled and filtered properly

The trade-off is simple: the more airtight a home becomes, the more important it is that the ventilation strategy is designed, installed, commissioned and explained properly.

Windows and doors: why they matter more than ever

Under future standards, windows carry real weight because they are a key pathway for heat loss and can contribute to summer overheating if glazing is excessive.

Trade press guidance notes that windows are expected to meet a U-value of 1.2 W/m²K or lower under Part L requirements, and while triple glazing is not mandatory, it is expected to become more common due to performance benefits.

This doesn’t mean everyone needs triple glazing, but it does mean:

• Glazing specifications should be coherent with the rest of the fabric

• Installation quality is as important as product specification

• You should ask what the U-values are (and for which part—whole window, not just glass)

Build quality: why documentation is becoming stricter

One of the most consumer-relevant changes in current Part L practice (effective since June 2022) is the requirement for photographic evidence of key construction details to support compliance documentation. This is part of tightening the link between “paper design” and “as-built reality.”

That’s good news for buyers, because it pushes the industry toward “show me” evidence:

• How insulation was installed at junctions

• Whether edge insulation was continuous

• How airtightness measures were applied before closing up walls

What you can look for without being an expert

You don’t need to inspect insulation inside the wall. But you can look for signals of quality:

• Consistent internal temperatures across rooms (cold corners can be a warning sign)

• No obvious draughts around windows/doors

• Good acoustic comfort (often improves with better fabric)

• A handover pack that explains how the home works and includes commissioning records

Why this matters for bills and resilience

A strong fabric reduces your exposure to energy price volatility. Even if electricity prices change, a home that needs less energy for comfort is inherently more resilient. It also supports future upgrades—because you can add smarter controls, batteries, or tariff optimisation on top of low demand, rather than trying to “out-tech” a leaky building.

Indoor air quality

As homes become more airtight and efficient, ventilation becomes a central health feature rather than a background detail. The Future Homes Standard direction makes ventilation design and commissioning more important, because the traditional “draughty house ventilates itself” reality is no longer acceptable—or safe.

Why ventilation becomes more important as insulation improves

Condensation and mould are not just about “too much moisture”; they’re about the balance between:

• Moisture produced by living (cooking, showers, breathing, drying laundry)

• How quickly that moisture is removed

• Surface temperatures (cold surfaces attract condensation)

• Air movement patterns within the home

Better insulation and airtightness usually increase surface temperatures (helpful), but they also reduce uncontrolled air leakage (meaning moisture won’t “accidentally” escape). That’s why ventilation must be planned.

Common ventilation approaches in higher-performing new homes

As airtightness expectations tighten, the SBH article notes that mechanical ventilation systems—whether continuous extract (MEV) or heat recovery (MVHR)—are becoming standard practice.

In simple terms:

• MEV (Mechanical Extract Ventilation): continuously extracts air from wet rooms, with fresh air entering through background vents.

• MVHR (Mechanical Ventilation with Heat Recovery): supplies and extracts air mechanically, transferring heat from outgoing to incoming air. It is typically used in more airtight homes.

What MVHR feels like to live with

When MVHR is well designed and commissioned, people often notice:

• More stable indoor temperatures

• Less condensation on windows

• Fresher air without needing windows open all the time

The responsibilities are also real, but manageable:

• Filters need cleaning/replacement

• You need to understand boost modes (kitchen, bathrooms)

• You should not switch it off for long periods, because it’s part of the building’s health system

Reducing condensation risk: practical habits that still matter

Even in a well-designed home, occupant behaviour matters. The best habits are simple:

• Use extractor boosts when showering and cooking

• Keep lids on pans and use cooker hoods properly

• Avoid drying laundry indoors without using ventilation boost

• Keep internal doors open where designed airflow relies on it

• Maintain your ventilation system (filters, grilles, settings)

Signs your ventilation isn’t working properly

Treat these as signals to investigate early:

• Persistent window condensation in mild weather

• Mould spots around corners or behind furniture

• Stuffy air or lingering odours

• Noisy fans or obvious airflow imbalance (one room feels “pressurised”)

If you spot these in a new home, don’t accept “that’s normal.” It often indicates commissioning issues, incorrect settings, blocked vents, or misunderstanding at handover. Documentation and commissioning certificates matter here.

Reassurance: “airtight” does not mean “stale”

A well-built modern home should feel comfortable and fresh. If it doesn’t, that’s not a reason to fear the standard—it’s a reason to ensure the standard is being implemented properly. The whole point of moving toward evidence-based compliance (including better modelling and verification) is to reduce the likelihood of poor outcomes.

Keeping new homes comfortable in summer

For many UK households, overheating used to be seen as a rare issue. That has changed. Modern homes can overheat because they are more airtight, better insulated, and often have larger glazing areas. In response, overheating risk has become a formal design consideration through Building Regulations (Part O in England), which sits alongside the Future Homes Standard direction.

Why overheating matters in new, efficient homes

Overheating affects:

• Sleep quality and wellbeing

• Health risks for vulnerable people

• Productivity (especially with home working)

• The temptation to add inefficient cooling later

The challenge is not “efficiency causes overheating”; it’s that efficiency changes the heat balance. If a home gains a lot of heat from sun and internal appliances, and it can’t shed that heat overnight, temperatures can climb.

Regulation context: Part O and the Future Homes Standard direction

England introduced specific overheating requirements through Approved Document O, which focuses on limiting unwanted solar gains and ensuring adequate means of removing heat (especially night-time ventilation).

While Part O is not “the Future Homes Standard”, it is part of the broader regulatory landscape shaping what homes built in the mid‑2020s look like—and it directly supports the Future Homes Standard aim of comfort and health.

What “good summer comfort” looks like in practice

A home designed well for summer comfort tends to include a mix of:

• Shading strategy:

  • External shading is often more effective than internal blinds

  • Overhangs, balconies, shutters, brise soleil, or well-chosen trees

• Glazing design:

  • Not all glazing needs to be maximised

  • Use appropriate g-values and orientations

• Ventilation strategy:

  • Secure night ventilation options (especially in bedrooms)

  • Cross-ventilation where possible

• Thermal mass and heat distribution:

  • Materials and design choices that reduce “spike” temperatures

• User guidance:

  • Clear advice at handover on how to manage hot spells

What buyers should ask about overheating (without sounding technical)

If you’re buying a new home, practical questions include:

• “How has overheating been assessed for this home?”

• “What shading is built in?”

• “How can I ventilate safely overnight?”

• “Are there any rooms designed to be warmer (like top-floor bedrooms) and how is that managed?”

• “If the home has air-to-air heat pump capability, how is it intended to be used responsibly?”

Why this is emotionally important, not just technical

A home is a place to rest. People can feel anxious hearing about “overheating risk” because it sounds like an inevitable flaw. It isn’t. The most reassuring truth is that good design can avoid most overheating problems without turning homes into dark boxes or making life inconvenient. The standards are moving precisely because summer comfort is increasingly non-negotiable.

Solar panels

Alongside low‑carbon heating, rooftop solar is becoming one of the defining features of Future Homes Standard-era housing. The shift is not only about carbon: it’s about households generating some of their own electricity and using smart controls to get better value from the energy system.

Solar panels: from “nice extra” to default expectation

In June 2025, the government confirmed new build homes would have solar panels “by default” and that proposed Future Homes Standard changes would amend Building Regulations to explicitly promote solar for the first time, subject to practical limits (such as heavy shading).

The same announcement notes earlier proposals that would have required solar coverage equivalent to 40% of the building’s floor area, and signals an intention to require a “reasonable amount” even where 40% coverage is not feasible—meaning fewer “get out of solar” exemptions.

What solar means for your bills (and why figures vary)

The June 2025 release gave an illustration: a “typical existing UK home” could save around £530 a year from installing rooftop solar, based on the then-current energy price cap and an illustrative 3.5 kW system (south-facing). It also clearly noted that actual costs and savings depend on usage, technical details, and future energy prices.

For Future Homes Standard-style homes, you should treat solar benefits as:

• Most powerful when you use electricity in daylight hours (or store it)

• More predictable when combined with smart tariffs and controls

• Highly dependent on your household routines (working from home changes the equation)

Smart controls: what they are and why they matter in all-electric homes

A Future Homes Standard home is expected to be more electrified: heating, hot water, cooking, EV charging and appliances may all draw from electricity. Smart controls help you:

• Keep comfort steady with lower peak demand

• Optimise heat pump running patterns

• Make the most of solar generation

• Use cheaper time-of-use electricity where available

The government announcement highlighted that households could save around £100 a year by using a smart tariff effectively with a heat pump (as an indicative figure linked to the Boiler Upgrade Scheme context).

Batteries, EV chargers, and future flexibility

You may also see:

• Home batteries to store solar generation (not always installed by default)

• EV chargers becoming common as homes are designed for electrification

• Load management so that high-demand appliances don’t overload the supply

These are not always mandatory, but the overall direction is for homes to be designed around electricity in a way older housing is not.

Practical guidance for living well with solar and smart controls

If your home has solar PV:

• Ask how much of the home’s annual electricity demand the system is designed to cover (a rough range is fine).

• Make sure you understand:

  • Inverter location and warranty

  • How to read generation and export data

  • How to use “self-consumption” features if available

• Shift easy loads to the daytime (dishwasher, laundry, hot water heating cycles where appropriate).

What buyers should look for at handover

Solar and smart controls are only valuable if you receive:

• Electrical certificates and commissioning records

• Clear instructions for apps and thermostats

• Monitoring access (or at least an explanation of what can be monitored)

• A basic “how this home uses energy” guide in plain English

A well-run handover reduces confusion and prevents the common “we have the tech but we don’t know how to use it” problem.

What buyers should ask for

If you take only one practical lesson from this guide, let it be this: a Future Homes Standard-quality home should come with evidence. You shouldn’t have to rely on sales claims, and you shouldn’t be left guessing how to run your home efficiently. Good documentation is not paperwork for its own sake—it is what enables comfort, low bills, and accountability.

Start with the mindset: you are not being “difficult”

Many buyers hesitate to ask for documents because they don’t want to sound mistrustful. It’s worth reframing:

• These homes are more technical (heat pumps, ventilation systems, smart controls).

• The industry is moving toward more evidence-based compliance.

• Having documents protects both you and the builder by clarifying what was installed and how it should perform.

The core documents you should expect

The exact list varies by home and systems installed, but a strong baseline includes:

• Building Control completion certificate (proof the home achieved regulatory completion).

• Energy Performance Certificate (EPC).

• As-built energy compliance documentation (SAP/HEM-related outputs where provided in your handover pack).

• Commissioning certificates for:

  • Heat pump / heating system

  • Mechanical ventilation (MEV/MVHR)

• Electrical certificates and test results.

• Solar PV documentation (if installed), including inverter details and warranty.

• User guides in plain language: controls, ventilation, filter changes, hot water settings.

A practical handover checklist

Use this table as a buyer-friendly checklist you can email to your developer or conveyancer.

Questions buyers should ask (phrased to get useful answers)

Instead of asking “Is it Future Homes Standard compliant?”, ask:

• “What heating system is installed, and can you provide the commissioning record?”

• “What ventilation system is installed, and how is it maintained?”

• “Is solar PV installed? If so, what size and what documentation will I receive?”

• “Can you explain how the home is designed to avoid overheating in summer?”

• “What is the handover process for explaining controls and settings?”

If you’re buying off-plan: when to ask

The best time is before exchange, because:

• It gives the developer time to collate documents.

• It sets expectations for the handover pack.

• It reduces the risk of you moving in with no clarity on how systems work.

If you’re further along, still ask. Many developers can provide documents after completion, but it’s often slower and more frustrating.

If you’re self-building: set documentation as a deliverable

If you’re managing your own build, treat commissioning and documentation as a contractual requirement for installers. Heat pumps and MVHR are not “install and forget” technologies; you want evidence they were set up for your home specifically.

Running costs

Living in a Future Homes Standard-era home should feel reassuring: warm in winter, comfortable in summer, and generally predictable in how it behaves. But because these homes often rely on low-carbon systems and smarter controls, they reward a small amount of understanding—especially in the first few months.

Start with a realistic expectation

Your running costs depend on three interacting factors:

1. How much energy the home needs (fabric performance and airtightness)

2. How efficiently your systems deliver comfort (heat pump performance, ventilation setup)

3. The price you pay per unit of energy (tariffs, export arrangements, future price changes)

Future Homes Standard measures aim to improve (1) and (2), while smart controls and solar can help with (3). But no standard can guarantee a single bill outcome for every household.

Heat pumps: how to use them comfortably (without fuss)

Most new homeowners are used to boilers that “blast heat” quickly. Heat pumps typically work best when you:

• Keep temperatures steady rather than using aggressive on/off patterns

• Use weather compensation if it’s fitted (it’s often beneficial)

• Don’t set hot water temperatures unnecessarily high

• Learn where your cylinder is (if you have one) and how it’s controlled

Energy Saving Trust notes that heat pumps are expected to cost a similar amount to run than the average gas boiler in many cases, and that replacing an older inefficient boiler can yield savings under current prices—though replacing a newer efficient boiler may not deliver significant bill savings yet.

Solar PV: habits that increase benefit

If your home has solar:

• Run dishwashers/laundry in daylight

• Charge devices and (if applicable) EVs when the sun is producing

• Understand export arrangements (if any)

• Consider whether a battery is worthwhile later (not always necessary)

The government’s June 2025 illustration suggested potential solar savings for a typical home and emphasised that actual savings vary with usage patterns and future energy prices.

Ventilation: your “health system”

If your home has MVHR or MEV:

• Keep it on (it’s designed to run continuously)

• Use boost modes for showers and cooking

• Replace/clean filters as directed

• Don’t block vents or grilles

If you notice condensation or musty air, treat it as a signal to review settings and maintenance rather than simply opening windows and hoping for the best.

Maintenance: what typically needs attention

A simple, realistic maintenance pattern looks like:

• Every 3–6 months: check/clean MVHR filters (or as instructed)

• Annually: heating system check (heat pump service intervals vary)

• Occasionally: solar inverter monitoring, visual checks, cleaning if advised

This is not meant to be burdensome. It’s similar to servicing a boiler—but applied to systems that run differently.

A simple way to track whether your home is performing well

You can avoid anxiety by using a few “good enough” indicators:

• Are rooms consistently warm without big swings?

• Do you have persistent condensation in normal use?

• Do summer bedrooms remain tolerable with sensible ventilation?

• Is your electricity use broadly stable once you’ve settled in?

If any answer is “no,” it doesn’t mean the home is “bad.” It means something might need adjustment—often controls, commissioning settings, or user guidance.

Common pitfalls and how to resolve issues

Transitions are where confusion and disappointment tend to happen—especially when standards change but developments are already in progress. Knowing how transitional arrangements work (in principle) helps you interpret what a builder is telling you and what you should reasonably expect in your home.

Transitional rules: why they exist

When Building Regulations change, it is common for transitional arrangements to avoid forcing designs to be redone mid‑project. Approved Document L (effective 15 June 2022) explicitly describes that it does not apply to certain work where a building notice/full plans/initial notice was submitted before the effective date, provided work started by a stated deadline—this shows the basic shape of how transitions are handled in practice.

For the Future Homes Standard, industry trackers anticipate a transitional arrangement window (often described as 12 months) after the standard “comes into force,” after which all relevant new starts must comply.

Common pitfalls buyers experience (and why they happen)

Even in well-intentioned builds, problems can emerge from weak delivery. Common pitfalls include:

• Heat pump discomfort or high bills

  • Often due to poor design (no proper heat loss calc), incorrect flow temperatures, or poorly set controls.

• Ventilation problems (condensation, stuffy air)

  • Often due to poor commissioning, blocked vents, or lack of user guidance.

• Overheating in summer

  • Often due to excessive glazing, lack of shading, or poor night ventilation strategy.

• Performance gap issues

  • Fabric details not built as designed, leading to draughts/cold spots. Evidence requirements like photographic records were introduced partly to address this.

How to resolve issues: a calm, structured approach

If you experience problems:

1. Start with the developer’s customer care team

   • Describe symptoms clearly (when it happens, which rooms, what settings).

2. Use your documentation

   • Commissioning certificates, settings guides, and completion certificates strengthen your position.

3. Escalate via warranty/ombudsman routes where applicable

   • Many new homes come with warranty schemes; follow their processes.

4. Get an independent assessment when needed

   • Especially for heat pump performance, ventilation commissioning, or overheating diagnosis.

5. Keep a record

   • Photos, temperature logs, communications—this is not to “build a case” aggressively, but to avoid misunderstandings.

If you’re self-building: avoid pitfalls by planning evidence early

For self-build projects, many pitfalls arise because:

• Heat pump and ventilation decisions are made late

• Duct routes and plant space are not designed in early

• Builders are unfamiliar with airtightness detailing

• Commissioning is rushed at the end

Your best protection is to require commissioning and documentation as deliverables—before final payment milestones.

A final reassurance about transitions

A home built under transitional rules is not automatically “bad.” Many developers already build well beyond minimum standards. The key is to understand which standard applied, and then ensure the home you receive has the systems, evidence, and usability that make it genuinely comfortable and efficient.

Conclusion

The Future Homes Standard is best understood as a long-term correction: a commitment that the homes we build next should not become the next generation of expensive retrofits. For households, the promise is simple—homes that are warmer, healthier, and cheaper to run—delivered through better fabric performance, low-carbon heating, and on-site renewable electricity where practical.

The big picture: what will feel different about new homes

As the standard is implemented, you should increasingly expect new homes to come with:

• All-electric or low-carbon heating systems (most commonly heat pumps) rather than gas boilers.

• Solar PV as a default feature in most cases, with flexibility for shading/orientation constraints.

• Higher fabric standards that reduce heat loss and improve comfort.

• Mechanical ventilation becoming more common, because airtightness and indoor air quality need to work together.

• Evidence and documentation that better reflects “as-built reality,” including stronger compliance workflows and calculation consistency via the Home Energy Model and ECaaS.

The timeline: treat “early 2026” as clarity, not instant compliance

“Early 2026” has been widely used to refer to expected government responses and publications, with sector planning assumptions pointing toward later “come into force” milestones and a transitional period. You don’t need to memorise every date, but you should remember the principle: completion year is not the same as compliance regime—transitional rules matter.

What you should do next (depending on your situation)

If you’re a buyer:

• Ask for the handover documents early, and insist on clear explanations of heating, ventilation and solar systems.

• View “documentation quality” as a proxy for build quality.

If you’re self-building:

• Design for low-carbon heating and ventilation from the start, not as late add-ons.

• Require commissioning and documentation contractually.

If you’re already living in a newer home:

• Learn your controls and ventilation system, and keep basic maintenance routines.

• If something feels wrong (condensation, overheating, unexpected costs), investigate early—most issues are solvable with adjustments when caught in time.

Frequently Asked Questions

Core concepts

Dates and transition

Coverage

Heating and hot water

Solar and electricity

Comfort and air

Buying and documents

Costs and support

Glossary

Useful organisations

Ofgem

Ofgem is Great Britain’s energy regulator. It’s a useful place to go if you’re trying to understand how energy supply rules affect you in a modern, low‑carbon home (for example: smart meters, switching tariffs, complaint routes, and what regulators can and cannot do). Ofgem also signposts consumers to the right places for support when something goes wrong with an energy supplier.

• 020 7901 7295
• www.ofgem.gov.uk

Ministry of Housing, Communities and Local Government (MHCLG)

MHCLG leads on housing policy in England and is closely tied to building regulations policy and guidance (including the standards that sit behind how new homes are designed, built and signed off). If you want the most authoritative updates and official publications that influence how the Future Homes Standard is implemented in practice, this is the central government department to watch.

• 0303 444 0000
• www.gov.uk

Department for Energy Security and Net Zero (DESNZ)

DESNZ is the government department responsible for energy security and net zero policy. While the Future Homes Standard is delivered through building regulations, DESNZ policy strongly influences the direction of low‑carbon heating, home energy efficiency, and the wider shift towards electrification (which is exactly what new-build homes are being designed for).

• 020 7215 5000
• www.gov.uk

Citizens Advice

If you have a problem with your energy bill, your energy supplier, or the way you’ve been treated as a customer, Citizens Advice is often the best first stop. Their consumer service can help you understand your rights, explain the complaint steps clearly, and tell you what evidence to gather—particularly useful if you’re moving into a new home and something about the supply, metering or billing isn’t working as it should.

• 0808 223 1133
• www.citizensadvice.org.uk

References

The Climate Change Committee (2024) Progress in reducing emissions: 2024 report to Parliament. Available at: https://www.theccc.org.uk/publication/progress-in-reducing-emissions-2024-report-to-parliament/

The Climate Change Committee (2025) Progress in reducing emissions: 2025 report to Parliament. Available at: https://www.theccc.org.uk/publication/progress-in-reducing-emissions-2025-report-to-parliament/

Department for Energy Security and Net Zero and Ministry of Housing, Communities and Local Government (2025) Rooftop solar for new builds to save people money. Available at: https://www.gov.uk/government/news/rooftop-solar-for-new-builds-to-save-people-money

Department for Energy Security and Net Zero (n.d.) Energy calculation as a service (ECaaS): Access the Home Energy Model. Available at: https://www.gov.uk/guidance/energy-calculation-as-a-service-ecaas-access-the-home-energy-model

Department for Energy Security and Net Zero (2023) Home Energy Model: replacement for the Standard Assessment Procedure (SAP). Available at: https://www.gov.uk/government/consultations/home-energy-model-replacement-for-the-standard-assessment-procedure-sap

Department for Energy Security and Net Zero (2025) The Home Energy Model: summary of responses received and government response (PDF). Available at: https://assets.publishing.service.gov.uk/media/68dd03238c1db6022d0c9f82/home-energy-model-government-response.pdf

Department for Energy Security and Net Zero (2025) The Home Energy Model: summary of responses received and government response (accessible webpage). Available at: https://www.gov.uk/government/consultations/home-energy-model-replacement-for-the-standard-assessment-procedure-sap/outcome/the-home-energy-model-summary-of-responses-received-and-government-response-accessible-webpage

Department for Energy Security and Net Zero (2023) An evaluation of the Home Energy Model and Future Homes Standard assessment wrapper (consultation versions) (PDF). Available at: https://assets.publishing.service.gov.uk/media/65788b8f0467eb001355f66a/home-energy-model-and-future-homes-standard-assessment-wrapper-evaluation.pdf

Department for Energy Security and Net Zero (2026) Home Energy Model: Energy Performance Certificates. Available at: https://www.gov.uk/government/consultations/home-energy-model-energy-performance-certificates

Department for Levelling Up, Housing and Communities and Department for Energy Security and Net Zero (2023) The future homes and buildings standards: 2023 consultation. Available at: https://www.gov.uk/government/consultations/the-future-homes-and-buildings-standards-2023-consultation/the-future-homes-and-buildings-standards-2023-consultation

Elmhurst Energy (2025) DESNZ release Home Energy Model Consultation Response. Available at: https://www.elmhurstenergy.co.uk/blog/2025/10/02/desnz-release-home-energy-model-consultation-response/

Energy Saving Trust (n.d.) Cut through the hot air: four heat pump questions clarified. Available at: https://energysavingtrust.org.uk/four-heat-pump-questions-clarified

Energy Saving Trust (n.d.) Boiler Upgrade Scheme. Available at: https://energysavingtrust.org.uk/grants-and-loans/boiler-upgrade-scheme?cats%5B%5D=2123

Future Homes Hub (2025) Future Homes Standard: Update and webinar. Available at: https://www.futurehomes.org.uk/future-homes-standard-desnz-announcement

Future Homes Hub (2022) Provide on-site photo evidence of your build. Available at: https://www.futurehomes.org.uk/photo-evidence

Home Energy Model Guide (2026) The Future Homes Standard — Complete Guide for UK New Builds. Available at: https://home-energy-model.co.uk/future-homes-standard/

House of Commons Committee of Public Accounts (2024) Decarbonising home heating (Thirty-Seventh Report of Session 2023–24). Available at: https://publications.parliament.uk/pa/cm5804/cmselect/cmpubacc/653/report.html

House of Commons Library (2024) Housing and net zero (Research Briefing CBP-8830). Available at: https://commonslibrary.parliament.uk/research-briefings/cbp-8830/

Ministry of Housing, Communities and Local Government (2023) Conservation of fuel and power: Approved Document L. Available at: https://www.gov.uk/government/publications/conservation-of-fuel-and-power-approved-document-l

Ministry of Housing, Communities and Local Government (2023) Approved Document L: Conservation of fuel and power, Volume 1: Dwellings (2021 edition incorporating 2023 amendments) (PDF). Available at: https://assets.publishing.service.gov.uk/media/662a2e3e55e1582b6ca7e592/Approved_Document_L__Conservation_of_fuel_and_power__Volume_1_Dwellings__2021_edition_incorporating_2023_amendments.pdf

National Audit Office (2024) Decarbonising home heating. Available at: https://www.nao.org.uk/reports/decarbonising-home-heating/

Office for National Statistics (2024) Energy efficiency of housing in England and Wales. Available at: https://www.ons.gov.uk/peoplepopulationandcommunity/housing/articles/energyefficiencyofhousinginenglandandwales/2024

Ofgem (n.d.) Boiler Upgrade Scheme (BUS). Available at: https://www.ofgem.gov.uk/environmental-and-social-schemes/boiler-upgrade-scheme-bus

Ofgem (n.d.) Boiler Upgrade Scheme (BUS) – Property owners. Available at: https://www.ofgem.gov.uk/environmental-and-social-schemes/boiler-upgrade-scheme-bus/property-owners

Ofgem (2025) Boiler Upgrade Scheme: Property owner guidance V4.1 (PDF). Available at: https://www.ofgem.gov.uk/sites/default/files/2025-02/BUS-Guidance-for-Property-Owners-V4.1.pdf

Planning Portal (n.d.) Planning permission: Air source heat pump. Available at: https://www.planningportal.co.uk/permission/common-projects/heat-pumps/planning-permission-air-source-heat-pump/

SBH Online (2026) The impact of the Future Homes Standard in 2026. Available at: https://www.sbhonline.co.uk/news/the-impact-of-the-future-homes-standard-in-2026/

Still have questions?

If you’re unsure how the Future Homes Standard affects a home you’re buying—or you’re struggling to interpret documents, compare heating systems, or understand what “good” looks like in practice—speaking to an expert can save you time and stress.

A short conversation with a qualified home-energy or building-services expert can help you:

• Understand whether a specific home is likely to be aligned with Future Homes Standard expectations

• Review what documents you should request and how to interpret them

• Get practical guidance on heat pump comfort, ventilation use, summer overheating, and solar benefits

• Decide what to do if your new home isn’t performing as promised

If your questions are specific to your home, your development, or your plans, personalised advice is often the fastest route to clarity—especially when you want reassurance you’re asking (and getting) the right things.