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Green premium in CW5

Energy-efficient houses here sell for -7.0% per m² less than inefficient houses — age-adjusted across 1,910 sales.

-7.0%
Age-adjusted premium
£2,943/m²
EPC A-C houses, median
960 sales
£3,060/m²
EPC D-G houses, median
950 sales

In CW5, EPC-rated A-C houses sold for a median £2,943/m² against £3,060/m² for D-G-rated houses — a difference of -7.0% per square metre, comparing only homes built in the same construction era (4 era bands with enough sales on both sides). Figures cover HM Land Registry sales in the last 5 years matched to EPC certificates by address.

Why age-adjusted, not raw

A city-wide comparison of every efficient sale against every inefficient one is misleading on its own: older homes carry their own price premium or discount that has nothing to do with energy efficiency, and EPC ratings correlate strongly with build era. A Victorian terrace rated D can still out-price a 2005-built terrace rated B, simply because of where and when it was built — not because being less efficient made it more valuable.

In CW5, the unadjusted comparison shows -3.8% the age-adjusted figure above (-7.0%) strips out the effect of houses of different EPC ratings here also tending to be different ages, comparing only homes built in the same era.

Flats in CW5

The same comparison for flats specifically.

-17.4%
Age-adjusted premium
£2,219/m²
EPC A-C median
188 sales
£2,398/m²
EPC D-G median
53 sales

How this compares to national projections

A national dataset published July 2026 models a uniform England-wide retrofit premium of +5.8% (medium retrofit) to +10.9% (predicted retrofit) by 2050 — Panakaduwa, Figshare 2026 (CC BY 4.0). That figure is a single projection assumption applied equally to every English dwelling type — not a measurement, and not specific to CW5. The -7.0% above is what CW5 buyers actually paid, today, and — like most outcodes we've measured — it doesn't match the national assumption. The premium varies by area and by construction era in ways a single national number can't capture.

More on CW5

Buying a specific property in CW5?

This page covers the outcode as a whole. A free Property Report gets you the actual EPC certificate, energy costs and sale history for one specific address.

Sources: HM Land Registry Price Paid · MHCLG EPC Register · Open Government Licence v3.0. Reliable from 20+ sales per band, last 5 years.