EPC rating and sold prices in S18 (North East Derbyshire)
In postcode district S18 (North East Derbyshire), homes rated EPC C or better sold for 1% more per square metre than D–G homes (median £2,851 vs £2,810, 3,947 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.8% more (95% range +1.3% to +4.4%). 1 of 4 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 84 m² for D–G; both groups are most often built in 1967–1975; 80% of C+ and 84% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +1% | — |
| Whole price, nothing held equal | +10.9% | +7.6% to +14.4% |
| Same floor area | +1.5% | −0.4% to +3.5% |
| + same property type | +7.1% | +5.3% to +8.9% |
| + same build period | +6.7% | +4.7% to +8.7% |
| + same year of sale | +2.8% | +1.3% to +4.4% |
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 S18
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| S18 1 | 1,192 | +4% | +1.8% | −0.5% to +4.1% |
| S18 2 | 908 | −2% | +3.2% | 0.0% to +6.5% |
| S18 3 | 300 | +13% | +3.6% | −1.3% to +8.7% |
| S18 4 | 181 | +9% | too few | — |
| S18 7 | 204 | −3% | too few | — |
| S18 8 | 1,162 | −5% | +3.0% ▲ | +0.3% to +5.8% |
▲ 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 S18
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 4 | too few |
| B | 181 | £2,899 |
| C | 983 | £2,840 |
| D | 2,174 | £2,853 |
| E | 525 | £2,609 |
| F | 67 | £2,703 |
| G | 13 | £2,462 |
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.