EPC rating and sold prices in WA8 (Halton)
In postcode district WA8 (Halton), homes rated EPC C or better sold for 17% more per square metre than D–G homes (median £2,164 vs £1,845, 9,064 sales). Like for like — same size, type, build period and year — the difference is +0.7% (95% range −0.7% to +2.0%): the EPC band itself is not reflected in sale prices here. 2 of 8 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 82 m² for D–G; the most common build period is 2012 onwards for C+ and 1930–1949 for D–G; 63% of C+ and 61% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +17% | — |
| Whole price, nothing held equal | +22.1% | +19.6% to +24.7% |
| Same floor area | +15.7% | +14.0% to +17.5% |
| + same property type | +14.3% | +12.9% to +15.8% |
| + same build period | +7.9% | +6.3% to +9.6% |
| + same year of sale | +0.7% | −0.7% to +2.0% |
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 WA8
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| WA8 0 | 576 | +45% | +6.8% ▲ | +1.6% to +12.4% |
| WA8 3 | 1,060 | +14% | −0.8% | −4.0% to +2.5% |
| WA8 4 | 704 | −14% | +0.6% | −2.5% to +3.8% |
| WA8 5 | 755 | +9% | +1.1% | −4.8% to +7.3% |
| WA8 6 | 1,254 | +60% | +7.8% ▲ | +4.2% to +11.5% |
| WA8 7 | 1,210 | +12% | −2.3% | −5.6% to +1.2% |
| WA8 8 | 1,406 | +9% | +1.4% | −1.8% to +4.8% |
| WA8 9 | 2,099 | −2% | +0.4% | −1.8% to +2.6% |
▲ 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 WA8
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 15 | £3,657 |
| B | 1,288 | £2,382 |
| C | 2,914 | £2,023 |
| D | 3,801 | £1,882 |
| E | 873 | £1,708 |
| F | 134 | £1,719 |
| G | 39 | £1,394 |
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.