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The A to G scale · band by band

EPC rating D

SAP 55 to 68: statistically, the 1930s semi's band. Lettable today, but on the wrong side of the 2030 line.

DSAP 55-68
Verdict: Plan ahead

Band D: lettable today. Not after 1 October 2030.

D clears the current band E floor, so you can let and re-let now. But the confirmed 2030 rules raise the floor to band C for private lets in England and Wales, with a £10,000 cost cap per property. Plan works before the deadline, not after it.

Band D is a SAP score of 55 to 68 GOV.UK SAP. The average English dwelling scores 67 EHS 2023-24, which lands in D by two points. If you own a 1930s three-bed semi with a gas boiler and part-filled cavity walls, this is statistically your band.

Can I let or sell a band D home today?

Yes to both. Selling has no minimum band. Letting requires band E or better in England and Wales GOV.UK MEES, and D clears that floor. The Can I let it? tool gives you the verdict for any band and situation.

What 2030 means for a D-rated rental

This is the band the 2030 rules were written about. From 1 October 2030 privately rented homes must meet an EPC C equivalent standard, with a £10,000 cost cap and 10-year exemptions Gov response Jan 2026. A D-rated rental needs a plan: the average D is only a handful of SAP points below C, and the cheapest points usually come first.

The cheapest routes from D to C

Start with your certificate's own recommendation list GOV.UK: it is property-specific and ordered. Common first steps for the classic D home are loft insulation top-up, cavity wall insulation where suitable, heating controls, and low-energy lighting. One warning before you commission anything: RdSAP 10 made assessments evidence-based, so keep invoices and documentation for every measure or the assessor may have to use default assumptions.

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 C. One band down: band E. 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: 5View the source register