EPC rating and sold prices in NG9 (Broxtowe)
In postcode district NG9 (Broxtowe), homes rated EPC C or better sold for 12% more per square metre than D–G homes (median £2,782 vs £2,474, 12,322 sales). Like for like — same size, type, build period and year — the difference is +0.8% (95% range −0.3% to +1.9%): the EPC band itself is not reflected in sale prices here. 4 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 84 m² against 84 m² for D–G; the most common build period is 2012 onwards for C+ and 1930–1949 for D–G; 63% of C+ and 76% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +12% | — |
| Whole price, nothing held equal | +13.8% | +11.8% to +15.9% |
| Same floor area | +11.1% | +9.8% to +12.4% |
| + same property type | +16.7% | +15.4% to +18.0% |
| + same build period | +7.8% | +6.3% to +9.3% |
| + same year of sale | +0.8% | −0.3% to +1.9% |
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 NG9
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| NG9 1 | 1,948 | +25% | +2.2% | −0.6% to +5.0% |
| NG9 2 | 1,731 | +16% | +6.1% ▲ | +3.2% to +9.0% |
| NG9 3 | 1,983 | +3% | −2.0% | −4.1% to +0.3% |
| NG9 4 | 897 | −1% | −0.8% | −4.4% to +2.9% |
| NG9 5 | 1,323 | +5% | +1.0% | −1.8% to +3.8% |
| NG9 6 | 1,613 | +1% | +3.4% ▲ | +1.1% to +5.9% |
| NG9 7 | 1,062 | +21% | +3.5% ▲ | +0.3% to +6.9% |
| NG9 8 | 1,765 | +29% | +3.1% ▲ | +0.3% to +6.0% |
▲ 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 NG9
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 19 | £3,724 |
| B | 1,224 | £3,060 |
| C | 2,578 | £2,639 |
| D | 5,849 | £2,603 |
| E | 2,220 | £2,263 |
| F | 386 | £2,049 |
| G | 46 | £1,783 |
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.