The 2026 MEES Reset: EPC C by 2030, a £10,000 Cap, and What UK Landlords Need to Know

What actually changed in January 2026

On 21 January 2026 the government published the Warm Homes Plan — a 152-page document committing £15 billion over five years, alongside the formal response to the February 2025 PRS MEES consultation. For private landlords in England and Wales, the headline numbers shifted in a way that most blog posts written before this date have not caught up with.

What I keep seeing online — and on architect-led marketing materials — is the old framing: EPC C by 2028 for new tenancies, then by 2030 for all tenancies, with a £15,000 spending cap. That timeline was formally dropped. Here is the comparison:

The National Residential Landlords Association called the package "a victory for common sense" after lobbying for a lower cap and longer runway. Whether you agree with the politics or not, the dates and numbers in the right-hand column are the ones that matter for planning now.

One thing the headlines often miss: the £10,000 cap counts spending you have already done. If you replaced a boiler with a heat pump, upgraded loft insulation or installed solar in late 2025 or 2026, that money counts toward your cap, with the exception of the Boiler Upgrade Scheme grant value itself. Keep the invoices.

The dual-metric standard — fabric plus a choice

This is the change I find most interesting technically, and the one I think will catch landlords out. From 2030, the MEES compliance standard is not a single EPC band — it is a two-step requirement built on the new EPC metrics.

1. Primary: Fabric Performance metric. This measures the building envelope — walls, roof, floors, windows, doors, airtightness. Essentially everything that determines how much heat the building loses, independent of how you heat it.
2. Secondary: choose one
   • Heating System metric — typically requires a low-carbon heat source. An efficient gas boiler alone is not expected to satisfy this; a heat pump (air or ground source) will.
   • Smart Readiness metric — micro-generation and load management. Solar PV plus battery storage plus smart controls is the typical route.

This is a meaningful departure from the current single-rating regime. Today a property can reach EPC C by stacking measures whose contribution is largely cosmetic in real-world performance terms — LED lighting, smart thermostats, condensing boilers — without the building fabric actually being any better. Under the new system, the fabric metric has to be hit first. That is the closest thing to a fabric-first principle the UK PRS rules have ever had, and on balance I think it is the right move.

The flexibility on the secondary metric matters because it lets a landlord pick the route that fits the property. A 1930s solid-floor terrace in Hereford with a north-facing roof and no clear loft access is a poor candidate for the smart-readiness route — solar barely earns its keep. A 1990s detached house in rural Powys with a 40 m² south-facing roof can hit smart readiness for under £6,000 once panels, battery and a hybrid inverter are in.

The £10,000 cap — what counts, what doesn't

The Department for Energy Security and Net Zero estimates the average actual spend per property at around £5,400, well under the cap. That figure is meaningful for portfolios where most properties are already EPC D — those are the ones a few hundred pounds of loft insulation and some draught proofing will get over the line. It is much less meaningful for solid-wall housing stock, where £5,400 will not finish a wall insulation job before you have started the windows.

What counts toward the cap

• Spending from 1 October 2025 onwards on the property, on any measure eligible to be recommended under the new regime.
• Third-party funding the landlord has contributed alongside (for example, top-ups beyond ECO4 or the new Warm Homes Local Grant).
• Professional fees directly related to the works (assessor, design, project management) in most readings of the consultation response, though final regulations are still being drafted.

What does NOT count

• The £7,500 Boiler Upgrade Scheme grant for a heat pump. You can claim BUS and it does not reduce your cap headroom.
• Routine maintenance and like-for-like repair (replacing a broken boiler with the same type, replacing rotten window frames with the same single glazing).
• Aesthetic upgrades.

The 10% rule for lower-value properties

For properties valued under £100,000, the cap is 10% of market value rather than the flat £10,000. This matters for a meaningful slice of housing stock in the North East and parts of the Midlands, where rental properties at £60,000–£80,000 valuation are common. A £70,000 terrace has a £7,000 cap, not £10,000.

What happens if you reach the cap and still cannot hit C

You can register a cost-cap exemption on the PRS Exemptions Register valid for 10 years. You will need three quotes for the recommended remaining measures and evidence that those measures would push spend over the cap. The cap will be reviewed every five years, though not before 2030.

What £10,000 actually buys on a typical UK rental

The DESNZ £5,400 average is a useful planning number, but it hides a wide distribution. Here is what I see in practice, based on current materials and labour rates in 2026 across the Welsh borders and West Midlands, for a 90 m² mid-terrace currently at EPC D:

For a cavity-walled house at EPC D, the maths is benign. Top up the loft, fill the cavity, swap a few halogen downlighters and you are probably at C for under £3,000. That is the household DESNZ is averaging over.

For a solid-wall house at EPC E or F — the kind I see most often in Herefordshire, Powys and the older parts of Worcester — £10,000 is not enough to get to C honestly. Either you accept a cost-cap exemption, you target Smart Readiness rather than full fabric C, or you take the view that retrofit is a longer programme of which 2030 compliance is one milestone and a properly insulated, low-energy home in 2035 is the actual goal. Which of those is right depends on the property, the rental yield and the landlord's investment horizon. There is no one-size answer and anyone selling you one is wrong.

Why fabric first matters even if you choose the heating route

If a landlord chooses the Heating System metric route (heat pump as the secondary), an unwary contractor will install the heat pump first because it is the visible, single-day intervention with the BUS grant attached. I think this is the wrong order, and the new dual-metric structure will gradually push the industry toward agreeing with me.

A heat pump on a poorly insulated UK property runs at higher flow temperatures, lower coefficient of performance and meaningfully higher electricity bills than a heat pump on a properly insulated one. Industry data on real-world heat pump performance shows COP variation from around 2.4 on cold, leaky housing to over 4.0 on well-insulated dwellings. That is the difference between a heat pump that saves the tenant money and one that does not.

For a landlord this matters because:

• Tenants on assured shorthold tenancies pay the energy bill. A heat pump installed badly produces complaints, vacancy and turnover cost.
• Heat pump capacity sizing on an unimproved property has to be larger, which costs more in equipment and electrical supply work.
• The fabric metric has to be passed first anyway under the new regime. Doing fabric work after the heat pump is more expensive than doing it before — pipework runs, radiator positions and emitter sizing all want to be designed against the final insulated U-values.

If you are planning a heat pump in 2026 or 2027, do the airtightness test, loft, cavity (if applicable) and window upgrade first. We covered the broader case for this sequencing in our EnerPHit retrofit guide, and the principle is the same whether the destination is EnerPHit or just MEES compliance.

Exemptions: heritage gone, "negative impacts" in, solid-wall opt-out

This is one of the biggest practical shifts, and I have not seen it widely reported outside professional briefings. The blanket exemption for listed buildings is being removed. Heritage assets will now be required to produce a valid EPC when marketed, sold or let. They are not exempt from MEES.

In its place, the government has introduced a "Negative Impacts" exemption that allows a landlord to bypass a specific measure where there is evidence it would damage the property's fabric or structure. This is the route that will protect lime-rendered, soft-brick, cob and stone-built properties from PIR-board internal wall insulation jobs that would trap moisture and rot the wall. It is also the route for solid-floor properties where the only DPC option is a tanking system the building cannot accept.

There is a separate, simpler opt-out for solid-wall insulation specifically. The government has acknowledged the damp and condensation risks associated with retrofitting solid walls badly, and is allowing landlords to decline this measure without losing access to the broader exemptions register. This does not mean solid-wall insulation is a bad idea — done correctly with vapour-open materials it is one of the most cost-effective measures available — but it does mean a landlord is not forced into it.

Other exemptions remain broadly as they were:

• Tenant consent refusal — where works cannot reasonably be done with tenants in situ.
• Third-party consent — where a freeholder, superior landlord or planning authority refuses permission.
• Devaluation — where the works would reduce property value by more than 5% (rare in practice).
• Cost cap reached — the £10,000 route described above.

All exemptions are registered on the PRS Exemptions Register. Validity periods under the new regime:

• Cost cap exemption — valid for 10 years.
• Negative Impacts exemption (replacing the heritage blanket) — valid for 10 years.
• Solid Wall Insulation opt-out — valid for 5 years.
• Tenant consent, third-party consent, devaluation — typically 5 years.

The October 2029 SAP-to-HEM cutover trap

This is the single most strategically important fact in the 2026 reset, and it is buried in a paragraph of the consultation response that most landlord-facing summaries skip past.

From 1 October 2029, all new EPC assessments in England and Wales will use the Home Energy Model (HEM) methodology rather than the Standard Assessment Procedure (SAP) currently in use. HEM is based on how the building retains heat rather than estimated running cost. Heat pumps score better under HEM than under SAP; resistive electric heating and inefficient gas systems score worse.

Properties with a valid EPC C issued under SAP before 1 October 2029 remain compliant for the full ten-year EPC validity period. Practically, that means a property that hits EPC C by, say, September 2029 under the current rules is protected through to September 2039 — even if it would not hit C under HEM.

For a portfolio landlord this creates a clear three-and-a-half-year window. A property at EPC D that can be lifted to C economically under the current SAP methodology is worth doing now — not in 2029, not in 2030. The same property assessed under HEM after October 2029 may be considerably harder to push to a C-equivalent rating, particularly if it relies on a gas boiler. I expect this to be the single biggest driver of retrofit activity in the PRS through 2027 and 2028. A lot of landlords will not see it coming.

If I held a 5-property portfolio in 2026, here is what I would do

I am not a financial adviser and what follows is a builder's view, not investment advice. With that caveat:

1. Audit all five EPCs now. Pull the current EPC for each property from the open EPC Register. Note the rating, the validity expiry, and the recommended measures. The cost of doing this is zero and the planning value is high.
2. Sort by EPC band, ascending. Worst-band first, because those are the properties where the measures are biggest, the works most disruptive, and the contractor lead times longest. EPC F and G stock should be in design phase by autumn 2026.
3. For each EPC D-band property, model the cost to get to SAP C before October 2029. If under £4,000–£5,000 (typical for cavity walls with a sensible existing fabric), do it in 2026 or 2027. Lock in the ten-year SAP protection. Move on.
4. For each EPC E-band property in solid wall, get a proper retrofit feasibility done. This is where the £10,000 cap and the negative-impacts exemption interact. You want to know whether you are on a normal retrofit path, a cost-cap exemption path, or a solid-wall opt-out path before you spend a penny.
5. Scan grants for each property. The Warm Homes Local Grant offers up to £30,000 per eligible low-income property (£15,000 for fabric and renewables plus £15,000 for low-carbon heating). Boiler Upgrade Scheme remains £7,500 for heat pumps and does not eat your cap. ECO4 was extended to 31 December 2026 (the extension was confirmed on 23 January 2026, two days after the Warm Homes Plan), and there will be no ECO5 or successor "supplier obligation" — the Warm Homes Plan replaces the framework with a grant-funded model from 2027 onwards. GBIS ended as scheduled on 31 March 2026 with no direct successor.
6. Plan the heat pump and solar decisions against HEM, not SAP. If you are doing work that will not complete until after October 2029, the property will be assessed under HEM. That changes the maths on heating system choice.
7. Document everything from 1 October 2025. Invoices, professional fees, EPC reports. The cap counts retroactive spend and you cannot recover what you cannot evidence.

The government has also flagged that it will explore allowing landlords with multiple properties to take a portfolio approach to the cost cap — aggregating £10,000 across several properties rather than applying it strictly per-property. This is not yet active, but if it lands it could meaningfully change the maths for portfolios where one property is cheap to bring to C and another is genuinely expensive.

Where APMBuild fits

We work on retrofit for two kinds of clients: homeowners doing their own deep retrofit, and small portfolio landlords planning their MEES strategy ahead of 2030. We are Passive House-trained, work primarily across Herefordshire, Worcestershire, Gloucestershire, Shropshire and the Welsh borders, and supply European building materials UK-wide through a direct EU supply chain.

For landlords specifically, the most useful thing we offer at this stage is a paid retrofit pre-assessment using PHPP modelling. It tells you what fabric U-values the property needs to hit MEES compliance honestly, what each measure will cost in 2026 pricing, and what order to do the works in to avoid wasting money on a heat pump that has to be resized two years later. A PHPP pre-assessment is not the same as an EPC — it is the engineering-grade calculation that EPCs approximate.

If you are planning works that will use European materials (PIR insulation, MVHR, windows, doors), we can typically deliver below UK trade pricing on the materials package, with 5–10 day site delivery from order. That can be the difference between a £10,000 cap getting you to C and not. See our materials catalogue for what we routinely supply.