Every council on the map

EPC Momentum Index · September 2026

EPC ratings in Windsor and Maidenhead

248 existing homes in Windsor and Maidenhead got a new EPC rated C or better in September 2026, 69% of the month's new certificates. Every privately rented home must be rated C by 1 October 2030, 1,449 days away.

Check a property in Windsor and Maidenhead free

✓ Free✓ Official EPC register data✓ Does your C survive the proposed new metrics?

New EPCs at C or better, September 2026

248

up 37% on the previous month

Share of the month's new EPCs at C or better

69%

England and Wales: 63%

EPCs from the last 10 years still below C

46%

171st highest of 317 councils

Estimated homes that moved up to C, September 2026

about 45

homes whose previous EPC was below C

Month by month

New EPCs for existing homes in Windsor and Maidenhead, and how many were C or better.

  1. October '25141 / 242
  2. November '25153 / 235
  3. December '25123 / 173
  4. January '26173 / 262
  5. February '26192 / 301
  6. March '26223 / 329
  7. April '26214 / 333
  8. May '26247 / 353
  9. June '26233 / 354
  10. July '26200 / 291
  11. August '26181 / 267
  12. September '26248 / 360

Green: rated C or better. Grey: all new EPCs that month. New builds are left out.

EPCs on record, by band

39,384 certificates lodged in Windsor and Maidenhead in the last ten years.

  • A0%
  • B14%
  • C40%
  • D34%
  • E10%
  • F2%
  • G0%

Bands D to G are below the 2030 standard. A C lodged before 1 October 2029 counts until it expires, and under the government's proposed new metrics a gas boiler can't score above D on heating, so a gas-heated C may need checking too.

What this means for landlords in Windsor and Maidenhead

Below C today. From 1 October 2030 the home can't be let until it reaches C, with a cost cap of £10,000 and exemptions for homes that can't get there. Spend from 1 October 2025 counts. The rules · Exemptions

Rated C already. Lodged before 1 October 2029, it counts until it expires. Gas-heated homes should check whether the C survives the proposed new metrics. The new metrics

Help with the cost. Warm Homes: Local Grant funds a landlord's first D–G property at up to 100% where tenants are on a low income, through the council, until March 2028. Grants and the eligibility checker

Check a property free

Nearby councils

Source and method

Energy Performance of Buildings Register (MHCLG), Open Government Licence v3.0, data to the end of September 2026. Existing homes only (RdSAP assessments); a home with several certificates is counted once per certificate. "Moved up to C" is estimated from a sample of the month's C-or-better certificates checked against each home's previous EPC. Monthly shares are hidden below 30 certificates. Rankings cover councils with at least 1,000 certificates on record. See how we count.