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The A to G scale · band by band

EPC rating G

SAP 1 to 20: the bottom of the certificate, and home to the oldest, hardest-to-treat stock.

GSAP 1-20
Verdict: Blocked

Band G: you cannot let this without a registered exemption.

Bands F and G sit below the MEES floor of E that has applied to all domestic lets in England and Wales since 1 April 2020. Letting a sub-E property without a valid exemption on the PRS Exemptions Register risks penalties of up to £5,000 per property. Improve it to E or register an exemption first.

Band G is a SAP score of 1 to 20 GOV.UK SAP: the bottom of the certificate. G-rated homes are a small and shrinking group, concentrated in the oldest stock: solid walls, no central heating or oil heating, off the gas grid, often rural and often pre-1919. Bands E to G together now cover just 9% of English dwellings EHS 2023-24.

Can a band G property be let or sold?

Sold, yes: there is no minimum band for sale, though buyers and their lenders will price the works in. Let, no: G sits two bands below the E floor that has applied to all domestic lets in England and Wales since April 2020, so letting requires a registered exemption GOV.UK MEES.

Improve or exempt?

For a G, the honest question is which exemption or improvement package fits, not whether the top of the scale is reachable. The current framework asks for spend up to £3,500 toward reaching E, with a 5-year exemption if the property still falls short GOV.UK MEES. Listed and protected buildings often sit in this band; their position is more conditional than most owners assume, and the listed buildings page covers the test that actually applies.

Where this band sits
BandSAP scoreLetting today (E floor)Letting from 1 Oct 2030 (C floor)
A92+AllowedAllowed
B81-91AllowedAllowed
C69-80AllowedAllowed
D55-68AllowedWorks or exemption required
E39-54AllowedWorks or exemption required
F21-38Exemption requiredWorks or exemption required
G1-20Exemption requiredWorks or exemption required
Floors apply to domestic private lets in England and Wales. Sources: GOV.UK MEES Gov response Jan 2026

One band up: band F. Or go back to the full A to G scale.

Lodgement recordPrepared and verified by Oliver Wakefield-Smith, Digital SignetLast verified 2 August 2026Primary sources cited on this page: 3View the source register