Question to the Department for Energy Security & Net Zero:

To ask the Secretary of State for Energy Security and Net Zero, what recent estimate he has made of the number of private rented properties that will qualify for an exemption from the proposed EPC C standard by 1 October 2030 on the grounds of (a) high cost, (b) property value adjustment, (c) solid wall construction and (d) negative impacts.

The most recent impact assessment was published on 21 January 2026, alongside the government response to the consultation on raising the minimum energy efficiency standard to EPC C by 2030 for privately rented homes.

The assessment outlines which exemptions have predominantly been registered on the PRS MEES Exemptions Register currently, and which of the existing and new exemptions are accounted for in the latest modelling. More information on this is available on GOV.UK.