EPC rating and sold prices in NW6 (Camden)
In postcode district NW6 (Camden), homes rated EPC C or better sold for 3% less per square metre than D–G homes (median £9,248 vs £9,517, 5,992 sales). Like for like — same size, type, build period and year — the difference is +0.6% (95% range −0.8% to +2.1%): the EPC band itself is not reflected in sale prices here. 0 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 73 m² against 89 m² for D–G; the most common build period is 2012 onwards for C+ and 1900–1929 for D–G; 1% of C+ and 8% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | −3% | — |
| Whole price, nothing held equal | −22.4% | −24.6% to −20.1% |
| Same floor area | −3.0% | −4.3% to −1.7% |
| + same property type | +0.6% | −0.7% to +1.8% |
| + same build period | +1.7% | +0.3% to +3.2% |
| + same year of sale | +0.6% | −0.8% to +2.1% |
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 NW6
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| NW6 1 | 1,109 | 0% | +2.4% | −0.1% to +4.9% |
| NW6 2 | 870 | +9% | −1.9% | −5.4% to +1.8% |
| NW6 3 | 717 | +2% | +2.7% | −0.6% to +6.1% |
| NW6 4 | 523 | −4% | 0.0% | −5.4% to +5.7% |
| NW6 5 | 897 | +7% | −0.8% | −5.6% to +4.3% |
| NW6 6 | 848 | −7% | +3.2% | −0.6% to +7.1% |
| NW6 7 | 1,028 | −5% | −1.4% | −4.5% to +1.9% |
▲ 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 NW6
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 5 | too few |
| B | 1,212 | £9,341 |
| C | 1,843 | £9,148 |
| D | 2,153 | £9,490 |
| E | 668 | £9,617 |
| F | 82 | £9,345 |
| G | 29 | £9,537 |
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.