Homes rated EPC G sold for a median £2,341 per square metre in England and Wales since 2015 (63,073 sales matched to a certificate, 0.7% of all), 18% less than band D homes (£2,857). Compared like with like — same floor area, property type, build period and year of sale — a band G home sold for 17.4% less than a band D home (95% range −18.6% to −16.1%; national sample of 407,128 sales in bands G and D). 7% of band G sales are flats or maisonettes (band D: 10%). Data: HM Land Registry Price Paid to 30 September 2026 matched to the EPC register.
Data: sales January 2015 – September 2026, EPC register November 2026, gas 2024 · calculated 5 November 2026 · Methodology and sources
Like-for-like: regression of the log of price on “band X” against band D, log floor area, property type, build period (12 bands from the certificate) and year of sale, on the sales in bands X and D of a random national sample of 1,000,000 matched sales. The raw £/m² gap is larger because better-rated homes are newer and of different types. Across all bands, C-or-better against D-to-G like for like: +1.2% (+0.9% to +1.5%).
Band G is the only one whose discount against D barely shrinks in a like for like comparison. Take a house of the same floor area, type, build period and year of sale: the gap stays almost as wide, and it is the deepest discount on the scale (for F, like for like, just −7.7%). You cannot let such a house without an exemption.
Letting below E
The Minimum Energy Efficiency Standard (MEES), under GOV.UK guidance dated 5 May 2026, bans letting property below E without an exemption. The landlord must either raise the house to E straight away or register an exemption; there is no obligation to spend more than £3,500 including VAT, and the fine is up to £5,000. Details are on the band F page.
Where the gap shows most
Terraced houses at band G went for £1,735 per m² (22,454 sales), terraced D at £2,459. In the North East it is £1,146 against £1,649, in London £5,657 against £6,000. Sales come from HM Land Registry up to 30 September 2026; that does not replace a valuation of your own house.
Medians mix different homes: compare within a row only with care, and see the region pages for the like-for-like premium of C-or-better homes there.