- EPC Band C (score 69+) is the proposed new minimum standard for all private rental properties in England and Wales.
- The working target deadline is 2028 for all existing tenancies — new tenancies may face an earlier requirement.
- Landlords with Band D, E, F or G properties must commission improvements or register a valid exemption.
- A cost cap (expected £15,000) means you won't be required to spend beyond the cap — but you will need to register an exemption if the cap is reached before Band C is achieved.
- Non-compliance fines remain up to £30,000 per property, enforceable by local authorities.
What's Changing With EPC Regulations?
The Minimum Energy Efficiency Standards (MEES) — the framework that sets the minimum EPC rating a landlord can legally let a property at — is being tightened significantly. Currently, privately rented properties in England and Wales must achieve a minimum of EPC Band E (a score of 39 or above). The government is now proposing to raise this to EPC Band C (a score of 69 or above).
This is not a minor adjustment. The gap between Band E and Band C represents a substantial improvement in energy performance — meaning many landlords will need to invest in insulation, heating system upgrades, or renewable energy installations to comply.
The Band C requirement is a proposed regulation — it has not yet been enacted into law as of early 2025. However, the government's consultation process is effectively concluded, and the industry consensus is that legislation is a matter of when, not if. Starting your assessment process now gives you the lead time to spread improvement costs and avoid a last-minute rush when legislation is confirmed.
The Current Law: EPC Band E (MEES 2018)
The current MEES regulations, which came into force in April 2018 for new tenancies and April 2020 for all existing tenancies, require that:
- All privately rented residential properties in England and Wales must have a minimum EPC rating of Band E before a tenancy can be granted or renewed
- Properties rated Band F or G cannot be legally let (subject to registered exemptions)
- Local authorities can impose fines of up to £4,000 per property for breaches of the current MEES regulations
- Exemptions are available where improvements are not technically feasible or where costs exceed the cost cap (currently £3,500 under MEES 2018)
The proposed Band C changes will dramatically raise this floor — and the proposed fine structure of up to £30,000 reflects the government's intent to enforce the new standard rigorously.
The 2026–2028 Regulatory Timeline
The proposed MEES timetable has shifted several times. Here is the current working timeline as understood from government consultations and industry guidance:
From 2026 to 2028 is approximately 24 months. In London, qualified retrofit assessors and installation contractors are already reporting forward booking queues of 3–6 months. Landlords who begin their assessment in 2025 will have first-mover advantage on both contractor availability and grant funding.
What Does EPC Band C Actually Mean?
EPC ratings run on a numerical scale from 1 (worst) to 100 (best), divided into seven bands. Understanding where your property sits — and how far it needs to travel — is the critical first step:
Which Properties Are Most at Risk?
The properties most likely to fall below Band C are those with characteristics that are inherently energy-inefficient:
- Pre-1940 solid-wall construction — no cavity wall insulation possible; solid wall insulation is expensive but high-impact
- Older gas boilers (G-rated or pre-2000) — inefficient heating is one of the largest score penalties
- Properties with single-glazed windows — significant heat loss, relatively straightforward and cost-effective to address
- Uninsulated lofts and floors — often the cheapest improvements per EPC point gained
- Electric storage heaters — typically rate poorly against current efficiency metrics
- Larger HMOs with shared communal areas — assessment covers the whole building; one poorly-rated area drags the whole score
A significant proportion of London's private rental stock consists of Victorian and Edwardian terraces and converted flats in pre-1940 buildings. Research estimates that up to 40% of London's private rental properties currently sit below Band C — meaning hundreds of thousands of landlords across the capital will need to take action before 2028.
How to Improve Your EPC Rating to Band C
The most cost-effective approach is to commission a retrofit assessment first — a specialist survey that identifies exactly which improvements will have the greatest impact on your EPC score per pound spent. Without this, landlords risk spending money on improvements that don't move the needle enough to cross the Band C threshold.
| Improvement Measure | EPC Point Gain | Typical Cost | Impact |
|---|---|---|---|
| Loft insulation (top-up to 270mm) | Up to 6 pts | £300–£600 | High |
| Cavity wall insulation | Up to 8 pts | £500–£1,500 | High |
| Solid wall insulation (internal) | Up to 12 pts | £4k–£12k | Very High |
| LED lighting throughout | 1–3 pts | £100–£300 | Low |
| Smart/programmable thermostat | 1–3 pts | £150–£350 | Low |
| Upgrade boiler (A-rated) | Up to 10 pts | £2k–£4k | High |
| Double glazing (replace single) | Up to 8 pts | £3k–£8k | Medium |
| Solar PV panels (3kW system) | Up to 14 pts | £4k–£8k | Very High |
Every Propsnap EPC assessment includes a personalised improvement recommendations report, showing exactly which measures will move your property to Band C, in order of cost-effectiveness. Accredited assessors cover all London areas, with same-week availability and certificates issued within 24 hours.
Costs of Compliance: What Should Landlords Budget?
Compliance costs vary enormously depending on the property's current rating and construction type:
- Band D properties (55–68): Often achievable within £500–£2,000 through loft insulation top-up, LED lighting, and a smart thermostat.
- Band E properties (39–54): Typically require £2,000–£8,000 of improvement — likely including boiler upgrade, cavity wall insulation, or double glazing. Government grants (ECO4, Boiler Upgrade Scheme) can offset a significant portion of this.
- Band F/G properties (below 39): Major works are almost always required. Costs can range from £8,000 to £20,000+. The proposed £15,000 cost cap means exemptions may apply for the most challenging properties.
Find Out Where Your Property Stands
An accredited EPC assessment tells you your current band, your exact score, and the specific improvements needed to reach Band C — with costs and grant eligibility included.
Penalties for Non-Compliance With the New MEES
The proposed penalty framework for the Band C regulations is significantly stricter than the current MEES regime:
- Up to £30,000 per property for letting a property that does not meet Band C (or hold a valid exemption) after the compliance deadline
- Publication on local authority registers — non-compliant landlords may be named publicly, affecting mortgage and insurance arrangements
- Remedial notices — local authorities can issue notices requiring compliance within a set timeframe; failure to comply escalates the fine
- Impact on Section 21 notices — courts have shown willingness to treat non-compliance with energy regulations as relevant in possession proceedings
Even if your property qualifies for an exemption (cost cap reached, technically unfeasible improvements), you must actively register the exemption with your local authority before the compliance deadline. Unregistered properties — even those that would qualify for exemption — are treated as non-compliant and subject to the full penalty.
Landlord Action Plan: What to Do Right Now
- Check your current EPC — search the national EPC register at find-energy-certificate.service.gov.uk using your property address.
- Commission a new EPC assessment — if your current certificate is over 5 years old or you've made changes since the last assessment, book a fresh assessment.
- Get a retrofit assessment — for properties below Band C, a retrofit assessor can identify the most cost-effective path to compliance, including grant eligibility.
- Explore grant funding — ECO4, the Boiler Upgrade Scheme, and the Great British Insulation Scheme can significantly reduce your out-of-pocket costs.
- Book contractors early — insulation installers and heat pump engineers are already reporting 3–6 month lead times in London.
- Keep all improvement records — retain receipts, certificates, and contractor details for every improvement made.
Frequently Asked Questions
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