Some landlords are selling because they expect the 2030 EPC C rules to make letting unaffordable. Sometimes that's the right call. Often it isn't: spending is capped, grants can cut the bill, and the government expects the average landlord to spend about £5,400 per property. Here's how to check the numbers for your home before you decide.
What the rules actually ask
- Every privately rented home in England and Wales needs EPC C by 1 October 2030, for new and existing tenancies. See the 2030 rules.
- You never have to spend more than £10,000 per property, or 10% of its value if that's lower. Spend from 1 October 2025 counts.
- If you reach the cap and the home still isn't at C, you can register a cost cap exemption, which lasts 10 years.
- An EPC C lodged before 1 October 2029 counts as compliant until it expires.
Step 1: find out what reaching C would cost
Your EPC lists recommended improvements in order, each with an indicative cost and the rating it would reach. Add them up until the score reaches 69, where band C starts. Cheaper measures such as loft and cavity wall insulation often come first.
One catch for gas-heated homes: under the government's proposals for the new EPC, a gas boiler can't score above D on heating. A new boiler can lift today's rating, but it may not help under the new metrics, and it doesn't count towards the cap. See the new EPC metrics.
Step 2: take off grants
- Boiler Upgrade Scheme: £7,500 off a heat pump (£9,000 for some off-gas homes until March 2027). Landlords can apply.
- Warm Homes: Local Grant (England): a first property can be fully funded where the tenants are on a low income.
- 0% VAT on installed insulation, heat pumps and solar until 31 March 2027.
Details and eligibility are in grants and funding for landlords.
Step 3: weigh it against the rent
Compare the one-off cost of reaching C with the rent you'd give up by selling. Rents keep rising: private rents in England rose 4.0% in the year to August 2026.
| Worked example (not your property) | |
|---|---|
| Monthly rent | £950 |
| Works to reach C, after grants | £4,000 |
| Two weeks empty during the works | £438 |
| Pays back in | About 4.7 months of rent |
| Monthly rent by 2030, if rents rise 4% a year | About £1,110 |
Step 4: count what selling costs
- Estate agent and conveyancing fees.
- Capital Gains Tax may be due on any gain. If it is, you usually have to report and pay within 60 days of completion. See GOV.UK's tax when you sell property.
- Selling with tenants in England. Since 1 May 2026 there are no section 21 notices. To sell with vacant possession you use the new sale ground: four months' notice, which can't end in the first 12 months of the tenancy. If the sale then falls through, you can't re-let for 12 months. Wales has its own rules under the Renting Homes (Wales) Act.
- The rent stops, and the money from the sale needs a new home.
When selling may still make sense
- The cost to reach C is high compared with the rent, and grants don't close the gap.
- The home needs other major work, such as a roof or rewiring, on top of energy improvements.
- You were planning to sell anyway, for reasons that have nothing to do with EPCs.
What to do next
Check your property free to see what reaching C would take and whether it pays for itself. If you're weighing up several properties, book a free 20-minute call.
Sources
- Government response: improving the energy performance of privately rented homes (Jan 2026)
- GOV.UK: Boiler Upgrade Scheme, what you can get
- DESNZ: Warm Homes: Local Grant policy guidance (June 2026)
- HMRC: VAT on energy-saving materials (Notice 708/6)
- ONS: Private rent and house prices, UK, September 2026
- GOV.UK: Tax when you sell property
- GOV.UK: Report and pay your Capital Gains Tax
- GOV.UK: Repossessing your privately rented property on or after 1 May 2026
Guidance only, not legal or financial advice.
How does your property measure up?
Free check using the official EPC register. Takes under a minute.
Check my property