EPC rating and sold prices in NW10 (Brent)
In postcode district NW10 (Brent), homes rated EPC C or better sold for 10% less per square metre than D–G homes (median £6,271 vs £6,957, 5,269 sales). Like for like — same size, type, build period and year — the difference is +1.4% (95% range −1.0% to +3.8%): the EPC band itself is not reflected in sale prices here. 1 of 7 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 70 m² against 101 m² for D–G; the most common build period is 2012 onwards for C+ and 1900–1929 for D–G; 4% of C+ and 19% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | −10% | — |
| Whole price, nothing held equal | −33.3% | −35.3% to −31.2% |
| Same floor area | −10.6% | −12.3% to −8.8% |
| + same property type | −7.0% | −8.9% to −5.1% |
| + same build period | +2.8% | +0.5% to +5.2% |
| + same year of sale | +1.4% | −1.0% to +3.8% |
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 NW10
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| NW10 0 | 312 | −3% | −6.8% | −13.5% to +0.4% |
| NW10 1 | 504 | +1% | −1.0% | −6.2% to +4.6% |
| NW10 2 | 406 | −4% | −5.5% | −11.2% to +0.7% |
| NW10 3 | 702 | −8% | +1.5% | −3.6% to +6.8% |
| NW10 4 | 426 | +3% | +5.5% ▲ | +1.0% to +10.1% |
| NW10 5 | 1,154 | 0% | +2.2% | −0.8% to +5.3% |
| NW10 6 | 222 | +1% | too few | — |
| NW10 7 | 794 | +1% | 0.0% | −6.3% to +6.7% |
| NW10 8 | 419 | −9% | too few | — |
| NW10 9 | 330 | +3% | too few | — |
▲ 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 NW10
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 1 | too few |
| B | 1,207 | £6,078 |
| C | 1,166 | £6,541 |
| D | 2,117 | £6,934 |
| E | 652 | £7,060 |
| F | 83 | £6,379 |
| G | 43 | £6,029 |
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.