EPC rating and sold prices in CA5 (Cumberland)
In postcode district CA5 (Cumberland), homes rated EPC C or better sold for 8% more per square metre than D–G homes (median £2,238 vs £2,072, 1,281 sales). Like for like — same size, type, build period and year — the difference is −2.0% (95% range −5.7% to +1.8%): the EPC band itself is not reflected in sale prices here. 1 of 2 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 118 m² against 108 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 81% of C+ and 85% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +8% | — |
| Whole price, nothing held equal | +12.2% | +7.1% to +17.6% |
| Same floor area | +8.9% | +5.6% to +12.2% |
| + same property type | +9.2% | +6.3% to +12.3% |
| + same build period | +0.3% | −3.8% to +4.6% |
| + same year of sale | −2.0% | −5.7% to +1.8% |
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 CA5
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| CA5 6 | 744 | +15% | +4.8% | −0.1% to +9.9% |
| CA5 7 | 537 | −1% | −7.2% ▼ | −12.4% to −1.6% |
▲ 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 CA5
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 68 | £2,615 |
| B | 339 | £2,260 |
| C | 208 | £2,047 |
| D | 402 | £2,135 |
| E | 177 | £1,944 |
| F | 65 | £1,962 |
| G | 22 | £1,722 |
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.