Energy efficiency is about to become a landlord’s problem in a way it never was before. Under proposals now being discussed, rented homes in England would need to meet a minimum Energy Performance Certificate (EPC) rating of C — a big step up from the current minimum of E. For landlords, that means surveys, upgrades and spending; for tenants, warmer homes and lower bills, but possibly higher rents. Here is what the proposed EPC rules for landlords actually mean, what reaching C takes, and what to do now while the rules are still proposals rather than law.
What Is Proposed
Right now, a landlord in England generally cannot let a property with an EPC rating below E, unless a valid exemption applies. The proposal would raise that floor to C. In practice, that would make a large share of the current rental stock non-compliant overnight: millions of rented homes sit at D or below, many of them older terraced houses, converted flats and properties with solid walls, old boilers and single glazing. The government has consulted on phasing, with new tenancies expected to meet the standard first and existing tenancies following later, but the exact dates have moved more than once and nothing is final until legislation is passed. Treat any date you read as provisional, and check the current position before committing money. The direction of travel is clear, though: every signal points toward a higher minimum, and landlords who wait may end up rushing work in a crowded market, paying more for tradespeople and materials. Start by getting an up-to-date EPC for each rental — ratings last ten years, but an old certificate may miss improvements already made, and a fresh assessment shows exactly how far each property is from C.
What Reaching C Actually Takes
An EPC band is not a judgement on how a home feels; it is a score produced by the Standard Assessment Procedure, which models energy costs per square metre. Moving from D to C usually takes one or two well-chosen measures rather than a full rebuild, but which measures depends entirely on the property. The assessor’s recommendations report, which comes with the certificate, lists them in order and estimates their effect — start there, not with guesswork. The usual heavy lifters are familiar: loft and wall insulation, a modern condensing boiler or heat pump, double glazing where windows are single-glazed, low-energy lighting throughout, and heating controls such as a room thermostat and thermostatic radiator valves. A property that already has loft insulation and a decent boiler may reach C with heating controls and lighting alone, at modest cost. A solid-walled Victorian terrace with an old boiler, no insulation and single glazing is a different project, potentially needing several measures together. One common trap is spending on the wrong thing first: new windows look impressive but deliver fewer SAP points per pound than insulation in many homes, so work through the recommendations in order and ask your assessor which single measure moves the score most.
Note too that an EPC models the property, not the tenant: draughts and cold spots tenants complain about do not always move the score, while invisible measures such as floor insulation do. Follow the score for compliance, but fix the lived experience too if you want to keep good tenants.
Costs, Exemptions and Funding
Costs vary so widely that averages mislead, but a realistic range helps. A straightforward D-to-C upgrade — loft top-up, heating controls, lighting — can run into the low thousands. A harder property needing wall insulation and a new heating system can run well into five figures. Previous proposals included a cost cap, under which landlords would not be required to spend beyond a set maximum per property (figures around £10,000 have been discussed), with a temporary exemption if the cap is reached without hitting C. Exemptions have also been proposed for properties where work is not technically feasible, where a tenant refuses access, where a measure would damage the fabric of a listed building, or where an independent surveyor confirms the work would reduce the property’s value. Every exemption would need registering and would be time-limited, not permanent. On funding, check what is available before you pay: the Energy Company Obligation (ECO) scheme, the Boiler Upgrade Scheme for heat pumps, and local authority grants all change regularly, and eligibility often depends on tenant circumstances such as benefits receipt, so ask your local council and your energy supplier what is open now. Get three quotes for major work, and be wary of cold callers selling upgrades on the back of EPC headlines.
What It Means for Tenants
Tenants stand to gain the most from a C minimum: warmer rooms, fewer draughts, and energy bills that can fall by hundreds of pounds a year in a leaky home. But tenants should also watch the side effects. Compliance costs are real, and some landlords will pass them on through higher rents, while others will decide the sums no longer work — one more factor behind why some landlords are selling up, which shrinks rental supply and pushes rents up for everyone left looking. If you are a tenant, ask for the EPC before signing — landlords must provide it — and compare the rating with the rent: a D-rated home with high bills costs more than its rent suggests. Ask what improvements are planned, and request reasonable measures in writing; landlords are often receptive when it is framed as a joint gain. And if your home is below E today, that already breaches the current minimum, which your council can enforce.
Frequently Asked Questions
Is the EPC C minimum law yet?
No. It is a proposal under consultation, with dates and details still subject to change. The current legal minimum in England remains E. Do not treat any proposed deadline as fixed until legislation passes.
How do I find my property’s EPC rating?
Search the government’s EPC register by postcode. If no certificate exists or it is over ten years old, commission a new assessment from an accredited domestic energy assessor.
What if my property cannot reach C?
Proposals include a cost cap and exemptions for technical infeasibility, tenant refusal of access, and listed buildings. Exemptions would need evidence and registration, and would be temporary rather than permanent.
Will rents rise because of the new rules?
Some will, where landlords pass on upgrade costs, and supply may tighten if marginal landlords sell. But tenants in upgraded homes should see lower energy bills, which offsets part of any rent rise.
