EPC rating and sold prices in CW7 (Cheshire West and Chester)
In postcode district CW7 (Cheshire West and Chester), homes rated EPC C or better sold for 21% more per square metre than D–G homes (median £2,237 vs £1,852, 5,814 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.8% less (95% range −4.4% to −1.3%). 1 of 4 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 86 m² against 84 m² for D–G; the most common build period is 2012 onwards for C+ and 1900–1929 for D–G; 77% of C+ and 75% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +21% | — |
| Whole price, nothing held equal | +14.8% | +12.2% to +17.4% |
| Same floor area | +14.3% | +12.5% to +16.2% |
| + same property type | +11.6% | +10.0% to +13.2% |
| + same build period | +2.4% | +0.4% to +4.5% |
| + same year of sale | −2.8% | −4.4% to −1.3% |
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 CW7
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| CW7 1 | 1,646 | +24% | −1.8% | −4.6% to +1.1% |
| CW7 2 | 1,961 | +13% | +0.5% | −2.0% to +3.0% |
| CW7 3 | 1,466 | +14% | −1.9% | −4.4% to +0.8% |
| CW7 4 | 741 | +32% | −13.9% ▼ | −20.2% to −7.1% |
▲ 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 CW7
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 16 | £2,590 |
| B | 1,509 | £2,329 |
| C | 1,398 | £2,013 |
| D | 2,196 | £1,923 |
| E | 576 | £1,620 |
| F | 79 | £1,380 |
| G | 40 | £1,312 |
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.