Nearly 3 million private-rented homes in England and Wales currently sit below an EPC rating of C. That is one in four rented properties, and the government has now confirmed that by 2030, every single one must be upgraded.
As reported by Pinsent Masons, the government has confirmed its response to the EPC reform consultation. The changes are sweeping: a new minimum C rating, a redesigned metric that measures actual energy performance, and a phased timeline that gives landlords until 2028 for new tenancies and 2030 for all lets. The catch is that compliance will be policed more aggressively, with fines of up to £30,000 and a public register of exemptions.
Who qualifies, and who doesn’t
The new rules apply to all private-rented homes in England and Wales. Scotland and Northern Ireland are consulting separately. Landlords must ensure their property reaches an EPC band C unless they qualify for an exemption, for example, if the cost of the work exceeds £10,000 per property, or if listed building restrictions prevent certain upgrades.
But the £10,000 cap is not a free pass. Landlords must spend up to that amount on the most cost-effective measures first: loft insulation, cavity wall insulation, draught-proofing, and LED lighting. If the property still does not reach a C, only then can they register an exemption. Ofgem data shows that the average cost to lift a D-rated home to a C is around £5,000–£8,000, well within the cap for most properties.
What it costs a typical 3-bed semi
For a tenant in a typical 3-bed semi currently rated EPC E, the annual heating bill runs roughly £1,400–£1,800. Lifting that to a C cuts the bill by about £400–£600 a year, according to Energy Saving Trust estimates. The landlord’s upfront cost, around £6,000–£9,000 for cavity wall insulation, loft top-up, and a modern gas boiler or heat pump, pays back in higher property value and lower void periods. For the tenant, it means warmer winters and lower bills without any capital outlay.
The government has not yet confirmed whether the existing Green Homes Grant or Boiler Upgrade Scheme will be extended to help landlords. But the Treasury confirmed in its response that no new direct grant is planned for the private-rented sector. Landlords must fund the work themselves, though they can spread costs across multiple tax years via capital allowances.
The ‘but’ pivot: enforcement and the new metric
The biggest shift is not the target date, it is the metric. The current EPC uses a cost-based calculation: how much it costs to heat a home to a standard temperature. The new system will measure actual energy performance in kilowatt-hours per square metre per year (kWh/m²/year). That means a home with cheap gas heating but poor fabric will no longer score well. The change is built to push landlords toward insulation and fabric upgrades rather than simply swapping to a cheaper fuel.
Yet enforcement remains the weak link. The current system has seen only a handful of prosecutions despite thousands of non-compliant properties. The government promises a national database of exemptions and a new enforcement body, but it has not named a budget or a start date. Without boots on the ground, the 2030 deadline risks being aspirational rather than binding.
What homeowners and tenants can do now
Tenants can request energy efficiency improvements from their landlord under the new rules. The landlord must respond within 14 days and cannot unreasonably refuse. If they do, tenants can escalate to the local authority, which can issue a compliance notice.
Landlords should commission an EPC assessment now, before the new metric takes effect, to understand their current rating and the likely cost to reach a C. The cheapest fixes are often the fastest: loft insulation (costs roughly £300–£500, saves £200–£300 a year) and draught-proofing (£100–£200, saves £50–£100 a year). The full upgrade programme should be planned before 2028 to avoid a last-minute scramble.
The deadline is fixed. The cap is set. The fines are real. For the 3 million households living in cold, expensive rented homes, the question is whether enforcement will match the ambition.
Frequently Asked Questions
The new minimum EPC rating for private-rented homes in England and Wales is band C. Landlords must achieve this by 2028 for new tenancies and by 2030 for all existing lets, or face fines of up to £30,000.
According to Ofgem data, the average cost to lift a D-rated home to a C is between £5,000 and £8,000. This is well within the £10,000 spending cap per property that landlords can use before qualifying for an exemption.
No, the government has confirmed that no new direct grant is planned for the private-rented sector. Landlords must fund the work themselves, though they can spread costs across multiple tax years via capital allowances.
Landlords can claim an exemption if the cost of upgrades exceeds £10,000 per property, or if listed building restrictions prevent certain works. However, they must first spend up to £10,000 on the most cost-effective measures like loft insulation, cavity wall insulation, and draught-proofing.
Tenants in a typical 3-bed semi currently rated EPC E could save between £400 and £600 per year on heating bills after upgrading to a C. The annual heating bill would drop from roughly £1,400–£1,800 to around £1,000–£1,200, based on Energy Saving Trust estimates.
