Blaenau Gwent: house prices and energy ratings
What homes sell for per m², how energy efficient they are, and what extending has added to sale prices, compared with the rest of Wales.
Blaenau Gwent is highlighted on the map. Our planning decision figures cover England only: the Welsh Government publishes planning statistics for Welsh councils. Compare areas on the map
Property prices and energy performance in Blaenau Gwent
Homes sold July 2023 to June 2026, matched to the floor area and energy rating on their Energy Performance Certificate.
Median price per m²
£1,605
2,073 sales
35% below Wales
Homes sold rated EPC A to C
37.1%
Median energy score 66
5.8 points below Wales
Value added by extending, per m²
£564
13.3% on the sale price
52% below Wales
Energy upgrade, no extension
+14.9%
Sale-price uplift when the energy score rose 5+ points
7.4 points above Wales
The median home sold in Blaenau Gwent was £136,000 for 86 m² of floor space. Price per m² is up 83% since 2015 (£902 to £1,654 per m², 2025). Across all 21,576 homes with a certificate, 41.9% are rated A to C on their latest one.
63 houses here were extended between two sales (second sale 2016 to 2026), adding a median 21 m². They sold for a median 13.3% more than similar unextended houses, £564 for each m² added. Will an extension pay for itself here?
Medians from HM Land Registry sale prices and MHCLG Energy Performance Certificates; groups under 30 sales or 50 extended houses are not shown. These describe past sales across many homes, not a valuation of any one. How these are worked out