EPC rating and sold prices in HX3 (Calderdale)
In postcode district HX3 (Calderdale), homes rated EPC C or better sold for 14% more per square metre than D–G homes (median £2,160 vs £1,893, 7,759 sales). Like for like — same size, type, build period and year — the difference is −1.5% (95% range −3.5% to +0.6%): the EPC band itself is not reflected in sale prices here. 1 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 94 m² against 79 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 55% of C+ and 44% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +14% | — |
| Whole price, nothing held equal | +33.3% | +29.6% to +37.0% |
| Same floor area | +15.5% | +13.4% to +17.7% |
| + same property type | +11.4% | +9.5% to +13.3% |
| + same build period | +2.6% | +0.3% to +5.0% |
| + same year of sale | −1.5% | −3.5% to +0.6% |
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 HX3
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| HX3 0 | 1,339 | +15% | +1.3% | −3.4% to +6.3% |
| HX3 5 | 940 | +29% | −3.6% | −8.3% to +1.4% |
| HX3 6 | 1,068 | +26% | +5.6% ▲ | +0.4% to +11.0% |
| HX3 7 | 1,759 | +2% | −1.1% | −4.1% to +2.1% |
| HX3 8 | 1,421 | +23% | −4.0% | −8.2% to +0.4% |
| HX3 9 | 1,232 | +1% | +2.1% | −2.4% to +6.9% |
▲ 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 HX3
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 13 | £3,148 |
| B | 649 | £2,503 |
| C | 1,541 | £2,019 |
| D | 3,586 | £1,984 |
| E | 1,630 | £1,723 |
| F | 249 | £1,552 |
| G | 91 | £1,071 |
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.