Guide · 10 min read
The current MEES position in 2026, the policy uncertainty around the EPC C target, what lenders are already pricing into BTL underwriting, and the actual remediation cost by stock type.
Written by Matt Lenzie · Published 19 May 2026
Advice from
Matt Lenzie · 25+ year career banker (Bank of Scotland, Lloyds Banking Group). £300m+ raised for property clients.
25+ year career banker (Bank of Scotland, Lloyds Banking Group). £300m+ raised for property clients.
MEES, the Minimum Energy Efficiency Standards regulations, is one of the most politically-uncertain areas of UK landlord regulation. The legal minimum for letting in England and Wales remains EPC E in 2026, having been since April 2018 for new tenancies and April 2020 for existing tenancies. The previously-proposed uplift to EPC C for new tenancies in 2025 and all tenancies in 2028 was scrapped by the previous government in September 2023, and the policy direction since has been uncertain.
What hasn't been uncertain is the lender response. Specialist BTL lenders started pricing EPC risk into their underwriting from 2022 and haven't loosened since the 2023 scrapping. The reasonable underwriting assumption is that some form of EPC C requirement returns within the late 2020s, and lenders are pre-positioning for that outcome regardless of the current legal text.
This guide walks through where the law actually sits in 2026, where the lender criteria sit (which is often ahead of the law), and what BTL landlords with D-G EPC stock should actually do.
In May 2026, the Minimum Energy Efficiency Standards (MEES) regulations require:
The exemptions allow F/G letting in narrow circumstances: where all "relevant energy efficiency improvements" have been made and the property still doesn't reach E; where the £3,500-incl-VAT cost cap is hit before reaching E; where consent (third-party / tenant / planning) couldn't be obtained for required works; where the works would devalue the property by 5%+ per an independent surveyor. Exemptions must be actively registered with photographic / documentary evidence; they don't apply by default.
Scotland's regime is similar but devolved (Energy Efficiency (Domestic Private Rented Property) (Scotland) Regulations). Northern Ireland has no equivalent MEES regime as of 2026.
The Conservative government in September 2023 scrapped the proposed timetable that would have required:
The reasoning given was cost burden on landlords during the cost-of-living period. The decision was contested and divisive, landlord groups broadly welcomed it; environmental groups and several lenders criticised it. The 2024 election brought a Labour government with a manifesto commitment to "ensuring private renters have warmer homes", widely read as flagging a return to EPC C requirements with a revised timetable.
As of May 2026, no replacement legal timetable has been published. The political signalling from MHCLG and DESNZ suggests an EPC C requirement is likely within the late-2020s window but the specific dates and the standard (current EPC methodology vs the proposed RdSAP10 / Home Energy Model methodology) are not confirmed.
While the legal position has been uncertain, specialist BTL lenders have continued to tighten EPC criteria for three reasons:
The result is that in 2026 the BTL lender response to EPC sits in three tiers:
| Lender stance | Examples | Practical implication |
|---|---|---|
| Restrictive, declines F/G outright, prefers C+ | Barclays, NatWest, Halifax, TMW, BM Solutions (most products) | Standard BTL on EPC D or below is increasingly difficult on high-street |
| Pragmatic, lends on E with rate margin, allows F/G with refurb plan or registered exemption | Paragon, Landbay, Fleet, Kent Reliance, Aldermore | Most BTL completions sit here in 2026 |
| Tolerant, lends on F/G with works plan; bridge-to-let for remediation cases | Together, Foundation, Precise, MFS, LendInvest | The route for landlords buying EPC F/G to refurbish to E or higher |
Several lenders have also introduced "green mortgage" products at modest pricing discounts (10-20bp) for EPC A-C properties, TMW, BM Solutions, Paragon, Foundation, Landbay, NatWest among them. The discount isn't huge but the products signal where the market is heading.
From the latest Energy Performance of Buildings data (2024 publication, 2023 underlying data), the English private rental sector EPC distribution sits at roughly:
| EPC rating | ~% of England PRS stock |
|---|---|
| A-B | 3% |
| C | 40% |
| D | 40% |
| E | 14% |
| F-G | 3% |
The "EPC C 2030" challenge, if it returns, therefore affects around 57% of England's PRS stock (D, E, F, G) requiring upgrade. The headline F/G stock is a small minority and most can be uplifted to E with sub-£5,000 works. The structurally hard part is moving the 40% of stock currently sitting at EPC D up to C.
Property type and age dominate the EPC distribution:
The honest cost depends on what's already there. Some indicative ranges from refurb cases packaged in 2025-2026:
| Works package | Indicative cost (UK average) | Typical EPC uplift |
|---|---|---|
| Loft insulation top-up (250mm+) | £400-£800 | 3-8 points |
| Cavity wall insulation (where possible) | £500-£1,200 | 5-15 points |
| Internal wall insulation (solid wall) | £8,000-£18,000 | 10-25 points |
| Double glazing (full house) | £5,000-£12,000 | 3-8 points |
| Modern condensing gas boiler | £2,500-£4,500 | 3-8 points |
| Air source heat pump | £8,000-£14,000 (post-grant) | 5-15 points |
| Smart thermostat + controls | £250-£500 | 1-3 points |
| LED lighting throughout | £200-£500 | 1-3 points |
| Solar PV (small system) | £4,000-£8,000 | 5-15 points |
An EPC point is the underlying SAP score (out of 100). EPC bands correspond approximately to: A 92+, B 81-91, C 69-80, D 55-68, E 39-54, F 21-38, G 1-20.
A typical Victorian terrace going from a SAP of 50 (mid-E) to a SAP of 70 (low C) requires around 20 points of uplift. A realistic works package, loft top-up, cavity wall insulation, modern boiler, smart controls, LED lighting, might deliver 12-15 points for £4,000-£7,000. The remaining 5-8 points typically need either double glazing, solid wall insulation, or solar PV to land, pushing total cost into £10,000-£20,000 territory.
The MEES £3,500-incl-VAT cost cap for landlord spending obligation is materially less than the cost of an actual E-to-C upgrade on Victorian stock. The cap protects landlords from open-ended liability, but it doesn't change the underlying economics of what the property needs.
Three reasonable strategies depending on portfolio shape and timeline:
1. Upgrade now while remediation grants exist. The Boiler Upgrade Scheme (heat pump grant £7,500), the Energy Company Obligation (ECO4 grants for vulnerable households), and various LA-specific schemes are currently available. Grant availability is variable and politically exposed; if you have D-E stock that can be upgraded for £5,000-£10,000 of net cost after grants, this is the cleanest position to be in regardless of policy direction.
2. Sell EPC-laggard stock and reinvest in better-rated stock. For some landlords, particularly those with Victorian / period stock requiring £15,000+ per property to upgrade, the maths of upgrade-and-hold doesn't beat the maths of sell-and-redeploy. The current capital gains tax environment (CGT BADR no longer available for FHL, residential CGT rate at 24% higher) makes this less clean than it would have been pre-2024, but it remains a valid strategic option for portfolio landlords.
3. Hold and wait for clarity, but pre-fund the remediation budget. For landlords with D-rated stock that can reasonably uplift to C with £5,000-£10,000 of works, holding and pre-funding the budget is a reasonable position. The EPC requirement may or may not return; if it does, you're ready. If it doesn't, you've added EPC C value to the property anyway. The mortgage market is increasingly pricing EPC into refinance rates, green mortgage discounts add a small offset against the works cost over time.
What's not a reasonable position in 2026 is doing nothing on F/G stock. The legal minimum is E; F/G stock requires either remediation or a registered exemption. Lender criteria are tightening regardless of MEES policy direction. Tenant expectations are shifting. "Wait and see" on F/G stock carries genuine downside.
For landlords buying EPC F or G stock specifically to refurbish to E or higher, a common refurb-to-let case, the financing route is typically a bridge-to-let combination. The bridge funds the purchase and the works; the term BTL refinances at the post-works EPC. More on bridge-to-let here.
Specialist lenders for this route in 2026: Together, Foundation Home Loans (selected products), Precise Mortgages, Kent Reliance, MFS, LendInvest. The bridge lender will want an itemised works schedule and a budget; the term BTL lender will want post-works EPC certificate as a condition of refinance. Around 20-30% of our refurb-to-let cases in 2025-2026 included an EPC uplift component.
For specific lender criteria on your case, book a call. See also our companion guides: the 100+ BTL lender panel decoded, bridge-to-let when it makes sense, and why BTL applications get declined.
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