EPC rating and sold prices in GL7 (Cotswold)
In postcode district GL7 (Cotswold), homes rated EPC C or better sold for 1% less per square metre than D–G homes (median £3,615 vs £3,666, 7,417 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.8% less (95% range −4.0% to −1.5%). 2 of 6 sectors with enough sales show a difference distinguishable from zero. Data: HM Land Registry to 30 September 2026, EPC register.
From the raw gap to like-for-like
The homes are not alike: C+ homes here have a median floor area of 98 m² against 96 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 57% of C+ and 66% 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 | −6.5% | −8.9% to −4.1% |
| Same floor area | −3.6% | −4.9% to −2.3% |
| + same property type | −1.9% | −3.1% to −0.7% |
| + same build period | +0.4% | −1.0% to +1.9% |
| + same year of sale | −2.8% | −4.0% to −1.5% |
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.
Postcode sectors in GL7
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| GL7 1 | 2,577 | 0% | −0.1% | −1.9% to +1.8% |
| GL7 2 | 1,023 | +2% | +1.7% | −1.3% to +4.7% |
| GL7 3 | 712 | −4% | −3.4% | −7.0% to +0.4% |
| GL7 4 | 973 | +2% | +0.9% | −2.2% to +4.1% |
| GL7 5 | 1,282 | −5% | −4.5% ▼ | −7.6% to −1.2% |
| GL7 6 | 612 | +1% | −7.2% ▼ | −13.3% to −0.7% |
| GL7 7 | 207 | −9% | too few | — |
▲ green: premium distinguishable from zero; ▼ red: discount; plain: no measurable difference. Small areas have fewer sales, so their 95% ranges are wider.
Sold prices by EPC band in GL7
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 49 | £4,156 |
| B | 1,433 | £3,595 |
| C | 2,089 | £3,613 |
| D | 2,486 | £3,608 |
| E | 997 | £3,765 |
| F | 290 | £3,996 |
| G | 73 | £3,844 |
A median is shown when a band has at least 10 sales.
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.