It is already unlawful to let a domestic property rated F or G, and the government confirmed in January 2026 that privately rented homes in England and Wales must reach a C-equivalent standard by 1 October 2030. Roughly 60% of rented homes sit at D or below — and a property that reaches C before 1 October 2029 stays compliant until that certificate expires, which is the strongest argument for starting now.
Spending cap per property£10,000Up from £3,500
Penalties for non-complianceUp to £30,000Per property
Government Grants Available
Are you eligible for funding?
49% of UK houses are rated Band D or below, costing homeowners an extra £650+ annually in waste energy bills. Under the Boiler Upgrade Scheme (BUS), qualifying UK households can receive £7,500 towards air source heat pumps, alongside ECO4 support for insulation and heating upgrades. A PAS 2035 compliant Retrofit Assessment is the essential first step to access these grants.
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