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EPC Momentum Index · September 2026

EPC ratings in North Hertfordshire

153 existing homes in North Hertfordshire got a new EPC rated C or better in September 2026, 65% of the month's new certificates. Every privately rented home must be rated C by 1 October 2030, 1,449 days away.

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New EPCs at C or better, September 2026

153

down 27% on the previous month

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

65%

England and Wales: 63%

EPCs from the last 10 years still below C

43%

218th highest of 317 councils

Estimated homes that moved up to C, September 2026

about 61

homes whose previous EPC was below C

Month by month

New EPCs for existing homes in North Hertfordshire, and how many were C or better.

  1. October '25219 / 354
  2. November '25313 / 415
  3. December '25314 / 418
  4. January '26460 / 557
  5. February '26326 / 407
  6. March '26273 / 377
  7. April '26164 / 259
  8. May '26130 / 233
  9. June '26114 / 202
  10. July '26159 / 243
  11. August '26211 / 291
  12. September '26153 / 237

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

EPCs on record, by band

34,452 certificates lodged in North Hertfordshire in the last ten years.

  • A1%
  • B12%
  • C44%
  • D32%
  • 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 North Hertfordshire

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

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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.