Does a C-or-better EPC sell for more in TR12 7 (Cornwall)?
No measurable EPC premium here. In postcode sector TR12 7 (Cornwall), comparing like with like — same floor area, property type, build period and year of sale — the difference is −0.2% (95% range −6.7% to +6.8%): the EPC band itself is not reflected in sale prices here. The raw gap is bigger: C+ homes sold for 1% less per square metre than D–G homes (median £3,011 vs £3,028, 764 sales 2015–2026), mostly because they are different homes. Across England and Wales the like-for-like figure is +1.2%. Data: HM Land Registry Price Paid to 30 September 2026 matched to the EPC register.
From the raw gap to like-for-like
The homes are not alike: C+ homes here have a median floor area of 99 m² against 93 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 74% of C+ and 80% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | −1% | — |
| Whole price, nothing held equal | +2.1% | −7.0% to +12.1% |
| Same floor area | −4.1% | −10.4% to +2.7% |
| + same property type | −0.9% | −6.9% to +5.5% |
| + same build period | +0.9% | −6.5% to +8.8% |
| + same year of sale | −0.2% | −6.7% to +6.8% |
The first row compares median prices per m²; the second compares whole prices; each later row adds one more thing that must be equal, ending with the like-for-like premium (regression of log price; build period from the certificate, 12 bands). The raw gap per m² and the whole-price gap differ because C+ and D–G homes differ in size.
Sold prices by EPC band in TR12 7
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 1 | too few |
| B | 36 | £3,239 |
| C | 104 | £2,897 |
| D | 194 | £2,967 |
| E | 241 | £3,096 |
| F | 134 | £3,023 |
| G | 54 | £2,826 |
A median is shown when a band has at least 10 sales.
C or better vs D–G, by property type
| Type | C+ sales | C+ £/m² | D–G sales | D–G £/m² |
|---|---|---|---|---|
| Detached | 73 | £3,125 | 363 | £3,286 |
| Semi-detached | 32 | £2,699 | 138 | £2,783 |
| Terraced | 31 | £2,840 | 112 | £2,623 |
| Flat / maisonette | 5 | — | 10 | £2,983 |
Compared with the wider area
| Area | Sales | Like-for-like | 95% range |
|---|---|---|---|
| Sector TR12 7 | 764 | −0.2% | −6.7% to +6.8% |
| District TR12 | 1,360 | −0.7% | −6.8% to +5.8% |
| England and Wales | 1,000,000 (sample) | +1.2% | +0.9% to +1.5% |
764 of 876 house and flat sales in the sector since 2015 (87%) were matched to a certificate.
How this is calculated
- Every standard sale (HM Land Registry Price Paid, category A) since January 2015 is matched to the latest energy certificate of the same address (postcode + house number or name + flat) lodged from 10 years before to 3 months after the sale; sales with no certificate or an ambiguous match are left out. Across England and Wales 92% of sales match.
- Price per m² uses the certificate's total floor area (15–1,000 m²).
- Like-for-like premium: regression of the log of price on “C or better”, log floor area, property type, the certificate's build period and the year of sale. The 95% range shows how precise the estimate is; when it includes zero, the data cannot tell the premium apart from none.
Caveats
- The band is the one on the certificate before the sale; certificates are a median 0.8 years old at the sale, but a quarter are over 4 years old and some homes were improved since.
- Condition, garden, parking, views and the exact position within the sector are not known; a premium could hide in them, or they could hide one.
- Individual sales and addresses are not shown.