In short: Right now, rented property in England must have a minimum EPC rating of E (a rule in place since 2020). After years of delay and U-turns, the government confirmed in January 2026 that all private tenancies will need to reach EPC C by 1 October 2030, with a single compliance deadline for both new and existing tenancies rather than separate 2028/2030 dates. There’s a cost cap of £10,000 per property (reduced from an earlier proposed £15,000), spend up to that and still not reach a C, and you can register a 10-year exemption. Typical upgrade costs range from a few hundred pounds for loft insulation to several thousand for glazing, insulation and heating upgrades combined.
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The current legal minimum: EPC E
Since April 2020, the Minimum Energy Efficiency Standard (MEES) regulations have required almost all privately rented homes in England and Wales to have an EPC rating of E or above before they can be lawfully let, this applies to existing tenancies as well as new ones, not just fresh lets. If your property is currently rated F or G and doesn’t have a valid registered exemption, you are already in breach and at risk of a penalty (currently up to £5,000 per property under existing MEES rules, though enforcement varies by local authority and is often triggered by tenant complaints or spot-checks).
The move to EPC C: what’s actually confirmed
The plan to raise the bar to EPC C has a messy history, successive governments proposed it, paused it, and revised the compliance dates and cost caps more than once. As of the government’s response published in January 2026 (part of the wider Warm Homes Plan), the confirmed position is:
- A single deadline of 1 October 2030 for all private rented tenancies to reach EPC C, the earlier plan for a separate, earlier deadline for new tenancies has been scrapped in favour of one date for everyone.
- A cost cap of £10,000 per property (down from the £15,000 figure floated earlier), which is the most you can be required to spend on improvements to reach the standard. Where a property is worth under roughly £100,000, the cap can be lower, set at 10% of the property’s value where that would be less than £10,000.
- Spending since October 2025 counts toward the cap, so upgrades you’ve already carried out recently aren’t wasted; keep your invoices and receipts.
- The maximum penalty for non-compliance is set to rise sharply to £30,000 per property, up from the current £5,000, once the EPC C requirement takes effect in October 2030.
Until 2030, the legal minimum remains E. Nothing forces you to hit C early, but if you’re planning refurbishment work anyway (a new boiler, re-plastering, replacing windows), it’s often cheaper to fold energy-efficiency improvements into that work now than to do it as a rushed, standalone job as the 2030 deadline approaches and contractor demand spikes.
Free EPC check
Check any property's EPC rating
Search the official government EPC register and get a free report showing the rating, running costs and the improvements that would lift it.
- Official government register data
- Free, in under a minute
- Downloadable report
What upgrades typically cost
Costs vary hugely by property type, age, and region, but as a rough planning guide for a typical two- or three-bedroom home:
- Loft insulation top-up: often a few hundred pounds, sometimes free or subsidised via local schemes.
- Cavity wall insulation: roughly £1,000–£2,500, one of the better-value measures where the property has a cavity to fill.
- Solid wall insulation (internal or external): considerably more expensive, often £7,000–£15,000+, and one of the main reasons the cost cap and exemptions exist, solid-walled Victorian and Edwardian terraces are disproportionately hard to bring up to C affordably.
- Double/triple glazing replacement: commonly £5,000–£10,000+ for a full house, less for partial replacement.
- Heating upgrades (e.g., a modern condensing boiler, or a heat pump): a straightforward boiler swap might be £2,000–£4,000; an air source heat pump is typically £7,000–£13,000 before grants, though government schemes such as the Boiler Upgrade Scheme can offset a meaningful chunk of that cost for qualifying properties.
- Smart thermostats, LED lighting, draught-proofing: relatively cheap (often under £500 combined) and can nudge a rating up incrementally.
Because these figures move with materials and labour costs, get at least two or three quotes from accredited installers before budgeting, and check whether your specific property (especially listed buildings or those in conservation areas) has restrictions on external changes like solid wall insulation or replacement windows.
Exemptions register
If you’ve spent up to the cost cap and the property still doesn’t reach the target rating, or if the cheapest recommended improvement alone would exceed the cap, or if there are no further recommended improvements left to make, you can register a valid exemption on the PRS Exemptions Register. A registered exemption is typically valid for a fixed period (historically five years, with the framework extending this in some circumstances) before you need to review the position again. Do not simply assume you qualify, exemptions must be actively registered with evidence, and providing false or misleading information on the register carries its own penalty.
What to do now, in July 2026
- Get an up-to-date EPC if yours is old or near expiry (EPCs are valid for 10 years, but the recommendations report may be outdated for planning purposes).
- Identify your current rating and the specific recommendations listed on it, these are usually ranked by cost-effectiveness.
- Budget improvements across the next few years rather than waiting until 2029–2030, when contractor demand (and prices) will likely spike.
- Check for available grants (Boiler Upgrade Scheme, ECO4, and any local authority schemes) that can reduce your out-of-pocket cost.
Related reading
- 50 Questions From Landlords, Answered (all 50 questions)
- our EPC basics guide
- our guide to improving your EPC rating
Sources
- Domestic private rented property: minimum energy efficiency standard, landlord guidance, GOV.UK
- Energy Performance Certificates (EPC), NRLA
This is general information, not legal, tax, or financial advice. Rules referenced are accurate to the best of available information as of July 2026 for England unless stated otherwise, this area of law is changing fast, so always check current government guidance (gov.uk) or consult a solicitor before acting, especially on evictions.
Last Updated on September 25, 2026