EPC rating and sold prices in WN2 (Wigan)
In postcode district WN2 (Wigan), homes rated EPC C or better sold for 26% more per square metre than D–G homes (median £2,010 vs £1,591, 7,981 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.2% more (95% range +0.8% to +3.6%). 1 of 5 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 81 m² against 80 m² for D–G; the most common build period is 2012 onwards for C+ and 1900–1929 for D–G; 68% of C+ and 60% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +26% | — |
| Whole price, nothing held equal | +30.6% | +28.1% to +33.2% |
| Same floor area | +26.6% | +24.6% to +28.8% |
| + same property type | +20.2% | +18.6% to +21.9% |
| + same build period | +9.4% | +7.6% to +11.3% |
| + same year of sale | +2.2% | +0.8% to +3.6% |
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 WN2
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| WN2 1 | 1,300 | +18% | −1.6% | −4.7% to +1.6% |
| WN2 2 | 1,229 | +67% | +0.5% | −3.5% to +4.7% |
| WN2 3 | 1,361 | +24% | +2.2% | −0.7% to +5.2% |
| WN2 4 | 2,342 | +22% | +3.1% ▲ | +1.0% to +5.2% |
| WN2 5 | 1,749 | +33% | +2.6% | −0.1% to +5.3% |
▲ 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 WN2
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 10 | £2,956 |
| B | 1,272 | £2,359 |
| C | 2,361 | £1,806 |
| D | 3,416 | £1,660 |
| E | 733 | £1,386 |
| F | 146 | £1,180 |
| G | 43 | £1,000 |
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.