Press & data room
Copy-ready figures for the 2030 retrofit exposure story
Cite the public EPC gap and matched-sale exposure safely. EPC-derived figures and matched-sale estimates are separated because they have different coverage and caveats.
Independent — on no one's payroll. All EPC-derived figures are Open Government Licence and free to cite with attribution.
Data vintage 2026-Q2 · methodology 0.3.0 · Energy Performance of Buildings Data: England and Wales, get-energy-performance-data.communities.gov.uk, GOV.UK
EPC-derived
48.9%
of rated dwellings below EPC C.
EPC-derived
8,875,483
rated dwellings below EPC C.
Cost model
£75.9bn
modelled cost-to-C.
Matched-sale estimate
£1.7tn
below-C matched-sale exposure; 44.1% coverage.
Cite this — EPC-derived figures
The Home Index (2026-Q2) finds 48.9% of rated domestic dwellings in England and Wales are below EPC band C — 8,875,483 homes — with a modelled cost-to-C of £75.9bn. Its matched-sale exposure estimate for below-C rated stock is £1.7tn, based on 44.1% national Land Registry match coverage (a matched-sale estimate, not a valuation).
Formal citation: The Home Index. Data source: EPC_Open_Data. Published by The Home Index. Data accessed/published: 2026-Q2.
Per-area citation
In Isles of Scilly, 83.3% of rated dwellings are below EPC band C (732 homes), with a matched-sale exposure estimate of £159.5m (41.5% local match coverage). Source: The Home Index, 2026-Q2.
Template: In {area}, {gap}% of rated dwellings are below EPC band C ({below_c} homes), with a matched-sale exposure estimate of {exposure} ({coverage}% local match coverage). Source: The Home Index, 2026-Q2.
Do not say
- Do not call matched-sale exposure a property valuation.
- Do not say C-rated homes cause higher prices.
- Do not omit match coverage when quoting price-derived claims.
- Do not present the 2030 standard as enacted law.
- Do not quote matched-sale figures for areas below the coverage floor.
League tables
| # | Local authority | Retrofit gap |
|---|---|---|
| 1 | Isles of Scilly | 83.3% |
| 2 | Gwynedd | 70.0% |
| 3 | Castle Point | 68.4% |
| 4 | Ceredigion | 67.9% |
| 5 | Staffordshire Moorlands | 67.5% |
| 6 | Pendle | 67.0% |
| 7 | North Norfolk | 64.4% |
| 8 | Isle of Anglesey | 64.3% |
| 9 | Southend-on-Sea | 64.2% |
| 10 | Blackpool | 63.8% |
| # | Constituency | Retrofit gap |
|---|---|---|
| 1 | Dwyfor Meirionnydd | 73.8% |
| 2 | Birmingham Yardley | 72.6% |
| 3 | Birmingham Hall Green and Moseley | 69.2% |
| 4 | Ceredigion Preseli | 69.0% |
| 5 | Southend West and Leigh | 68.8% |
| 6 | Castle Point | 68.4% |
| 7 | Staffordshire Moorlands | 68.2% |
| 8 | Caerfyrddin | 67.4% |
| 9 | Rhondda and Ogmore | 66.4% |
| 10 | Barrow and Furness | 65.3% |
| # | Local authority | Exposure |
|---|---|---|
| 1 | Kensington and Chelsea | £27.6bn |
| 2 | Buckinghamshire | £26.9bn |
| 3 | Cornwall | £26.9bn |
| 4 | North Yorkshire | £24.7bn |
| 5 | Westminster | £21.9bn |
| 6 | Somerset | £21.0bn |
| 7 | Wandsworth | £18.6bn |
| 8 | Wiltshire | £17.8bn |
| 9 | Birmingham | £17.4bn |
| 10 | Barnet | £17.1bn |
Matched-sale estimates; areas below the coverage floor are omitted. Not valuations.
| # | Local authority | Cold Homes Index |
|---|---|---|
| 1 | Great Yarmouth | 88 / 100 |
| 2 | Birmingham | 85 / 100 |
| 3 | Leicester | 84 / 100 |
| 4 | Nottingham | 84 / 100 |
| 5 | Hastings | 81 / 100 |
| 6 | East Lindsey | 81 / 100 |
| 7 | Liverpool | 80 / 100 |
| 8 | Enfield | 80 / 100 |
| 9 | Manchester | 80 / 100 |
| 10 | Wolverhampton | 79 / 100 |
The Cold Homes Index (off-gas + fuel poverty × solid-wall + deprivation), England LADs. Context for where need concentrates — not a judgement about any household or landlord. Full index →
Download the full tables
Open data (CSV). EPC-derived and modelled columns are explicitly labelled; matched-sale cells are blank where an area is below the coverage floor. Aggregates only — no address-level or full-postcode data.
- National summaryHeadline EPC + matched-sale figures.CSV ↓
- Local authoritiesAll LADs, ranked by retrofit gap.CSV ↓
- Whole-stock companionObserved and coverage-adjusted LAD estimates, intervals and diagnostics.CSV ↓
- ConstituenciesAll Westminster constituencies.CSV ↓
- Postcode districtsAll outcodes (aggregate only).CSV ↓
Embedding a live figure
Every local authority and constituency has a self-contained embed widget — a live retrofit-gap figure with attribution and a backlink, paste-ready for an article. Use the route for your area:
https://thehomeindex.org/embed/lad/{code}https://thehomeindex.org/embed/constituency/{code}
Find your area's code on its report page, or in the downloadable tables above.
Contact & corrections
Published by The Home Index. For data requests, bespoke cuts, interview, or a correction, email [email protected].
The index is refreshed each quarter as new EPC and Land Registry data lands; every release carries its data vintage and methodology version. Corrections are made promptly and noted against the affected figures.