The government will require all new tenancies in England and Wales to have an EPC rating of C from 2026, a jump from the current minimum of E. By 2028, every rental property must meet that standard. As reported by BuyAssociation Group, the reforms will steer property investment decisions for years.
For a typical 3-bed semi in the Midlands, moving from an EPC D to a C costs between £5,000 and £10,000, according to Energy Saving Trust estimates. That is the difference between a property that qualifies for a mortgage and one that doesn’t, or between a tenant who can rent it and one who cannot.
Who qualifies, and who doesn’t
The 2026 deadline applies only to new tenancies. Existing tenancies get a two-year reprieve until 2028. But the market will move faster than the law. Lenders are already pricing in the new minimum: Nationwide and Barclays now offer lower rates on homes with EPC C or above. Homes rated D or E could see a 10-15% value discount, estate agents report.
The catch is that not every home can reach a C with standard upgrades. Solid-wall properties, listed buildings, and homes with no loft space often hit a hard ceiling at D. The government has not yet confirmed exemptions for these cases. Landlords who bought in 2021-2023 at high prices may face a binary choice: spend £12,000 on external wall insulation or sell at a loss.
What it costs a typical 3-bed semi
Ofgem data shows that a typical EPC D home uses 12,000 kWh of gas and 3,000 kWh of electricity per year. To reach C, the assessor looks for three things: loft insulation to 270mm (cost: £300-£400), cavity wall insulation (£700-£1,500), and an efficient boiler or heat pump. If the boiler is 10+ years old, replacing it with an A-rated condensing model costs £2,000-£3,000. A heat pump costs £7,000-£13,000 after the Boiler Upgrade Scheme grant of £7,500.
The cheapest route is insulation first. The ECO4 scheme covers cavity wall and loft insulation for low-income households. The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing. Landlords can claim up to £5,000 per property under the same programme.
Buyer behaviour is shifting now
Rightmove data from early 2025 shows that 42% of buyers now filter searches by EPC rating, up from 28% in 2022. Properties with a C or above sell 12 days faster on average. The shift is most pronounced among first-time buyers under 35, who see energy bills as a fixed cost they cannot avoid.
Yet the market still has a blind spot: the EPC itself. The current methodology overweights heating systems and underweights fabric efficiency. A home with a heat pump but single glazing can get a C, while a home with double glazing and an old boiler gets a D. The government’s consultation on EPC reform, due in late 2025, will likely rebalance these weights. Homeowners who invest in fabric upgrades now, loft insulation, wall insulation, triple glazing, will be ahead of the curve.
What to do by when
Landlords with EPC D or E properties should get an updated assessment now. The current EPC is valid for 10 years, but the reform will require a new one after upgrades. Homeowners planning to sell in 2027 or later should check their EPC rating on gov.uk. If it is below C, the cost of upgrades will almost certainly be less than the loss in sale price.
Households on standard variable tariffs can apply for ECO4 funding through their local authority until March 2026. The Boiler Upgrade Scheme runs until 2028. Both are first-come, first-served. The window to act cheaply is closing.
Frequently Asked Questions
No, the 2026 and 2028 deadlines apply only to rental properties in England and Wales. However, owner-occupied homes may face indirect pressure: lenders increasingly factor EPC ratings into mortgage rates, and buyers are filtering by EPC on property portals. A low rating could reduce your home's resale value even if you are not a landlord.
Yes, if you meet eligibility criteria. The ECO4 scheme covers insulation and heating upgrades for low-income households. The Great British Insulation Scheme closed on 31 March 2026. It funded insulation measures only and never covered windows or glazing. Landlords can access the same schemes. For heat pumps, the Boiler Upgrade Scheme provides £7,500 off the installation cost. Check your eligibility on gov.uk.
