What percentage of homes in Hayes and Harlington are below EPC band C?

47.5% of rated homes in Hayes and Harlington are below EPC band C (as of 2026-Q2) — 15,294 of 32,209 rated dwellings. Source: The Home Index, from EPC Open Data under the Open Government Licence.

How many homes in Hayes and Harlington need upgrading to reach EPC band C?

15,294 rated dwellings in Hayes and Harlington sit below EPC band C and would need improvement to reach the band-C standard.

How does Hayes and Harlington rank for the EPC band C retrofit gap?

Hayes and Harlington ranks #365 for the widest retrofit gap among constituency areas in England and Wales.

Constituency diagnosis

Hayes and Harlington

Name: The Home Index — Hayes and Harlington
Creator: The Home Index
License: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

E14001276vintage 2026-Q2#365 by retrofit gap

Constituency figures use the 2024 Westminster; comparisons are only valid within one boundary vintage.

In Hayes and Harlington, 15,294 rated homes sit below EPC band C. That puts the area at #365 for the widest gap among constituency areas in England & Wales.

Direction of travel

On current pace, reaches band C by 2045

Projection from the 15-year rated-stock trend; not a forecast.

Retrofit gap

47.5%

of 32,209 rated domestic dwellings are below band C.

EPC Open Data · Open Government Licence · free to cite with attribution.

Homes below band C

15,294

League rank

#365

1 = widest gap.

Cost to reach band C

£120.4m(modelled estimate of the cost to reach band C)

Position and trajectory

Is the gap closing?

The latest position for Hayes and Harlington, set against the recent direction of travel.

Fig.1Retrofit gap over time

Stock · year-end

Share of Hayes and Harlington's rated dwellings below band C at each year-end, ending at its headline 47.5%. Tracks every home by its latest certificate. EPC register.

Land Registry × EPC — matched-sale signals

What is at stake in the local market

We match HM Land Registry sales to EPC certificates: price per m², below-C matched-sale exposure, the observed C-or-above price/m² spread, and transaction-rate signals. Modelled estimates, shown with match coverage; not valuations. Methodology

Matched-sale exposure

£2.5bn

estimate for below-C stock; not a valuation.

Median sale price

£438k

typical matched sale here.

Matched sale £/m²

£5,777/m²

median, from matched sales.

31.8% coverageMatched-sale estimate from recent HM Land Registry sales. Not a valuation. Methodology.

Matched sale £/m²

£5,777/m²

Matched-sale exposure

£2.5bnmatched-sale estimate of below-C rated stock value; not a valuation

C+ price/m² spread

-2.4%

Below-C transaction rate

0.96×

Private rented sector

The rented-stock cut

51.6% (based on 82.7% tenure coverage)

Make it specific

Area averages cannot tell you what one home needs.

Check a real address in Hayes and Harlington for its EPC, running costs, route to band C and available support. Landlords can then compare that home across a portfolio.

Check a home →Check a portfolio →

Prefer a general estimate? Model a home type in the cost calculator.

For local reporters: this is Hayes and Harlington's citable figure — copy the line below or embed the live widget, free to use with attribution.

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Citation

The Home Index (2026-Q2): Hayes and Harlington has a retrofit gap of 47.5% — the share of rated homes below EPC band C. Source: EPC Open Data (Open Government Licence).

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