Merthyr Tydfil: 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.
Merthyr Tydfil 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 Merthyr Tydfil
Homes sold July 2023 to June 2026, matched to the floor area and energy rating on their Energy Performance Certificate.
Median price per m²
£1,739
1,681 sales
30% below Wales
Homes sold rated EPC A to C
41.3%
Median energy score 66
1.6 points below Wales
Value added by extending, per m²
–
Too few extended houses
Energy upgrade, no extension
+17.7%
Sale-price uplift when the energy score rose 5+ points
10.2 points above Wales
The median home sold in Merthyr Tydfil was £145,000 for 85 m² of floor space. Price per m² is up 68% since 2015 (£1,056 to £1,773 per m², 2025). Across all 19,771 homes with a certificate, 52.3% are rated A to C on their latest one.
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