EPC rating and sold prices in BB4 (Rossendale)
In postcode district BB4 (Rossendale), homes rated EPC C or better sold for 31% more per square metre than D–G homes (median £2,222 vs £1,699, 7,503 sales). Like for like — same size, type, build period and year — the difference is +0.4% (95% range −1.2% to +2.0%): the EPC band itself is not reflected in sale prices here. 2 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 96 m² against 89 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 57% of C+ and 42% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +31% | — |
| Whole price, nothing held equal | +36.3% | +32.7% to +39.9% |
| Same floor area | +30.8% | +28.4% to +33.4% |
| + same property type | +18.7% | +16.7% to +20.7% |
| + same build period | +7.9% | +5.7% to +10.0% |
| + same year of sale | +0.4% | −1.2% 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 BB4
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| BB4 4 | 1,259 | +12% | −1.2% | −4.0% to +1.8% |
| BB4 5 | 913 | +34% | +4.8% | 0.0% to +9.8% |
| BB4 6 | 1,485 | +22% | −0.7% | −3.8% to +2.4% |
| BB4 7 | 1,039 | +36% | +7.5% ▲ | +2.6% to +12.6% |
| BB4 8 | 1,880 | +41% | +2.8% ▲ | 0.0% to +5.7% |
| BB4 9 | 927 | +16% | +4.7% | −0.1% to +9.8% |
▲ 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 BB4
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 3 | too few |
| B | 690 | £2,477 |
| C | 1,633 | £2,065 |
| D | 3,475 | £1,842 |
| E | 1,355 | £1,476 |
| F | 272 | £1,302 |
| G | 75 | £1,032 |
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.