EPC rating and sold prices in NW1 (Camden)
In postcode district NW1 (Camden), homes rated EPC C or better sold for 4% less per square metre than D–G homes (median £10,334 vs £10,753, 3,533 sales). Like for like — same size, type, build period and year — the difference is +1.0% (95% range −1.5% to +3.5%): 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 69 m² against 80 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 1% of C+ and 5% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | −4% | — |
| Whole price, nothing held equal | −23.4% | −26.8% to −19.9% |
| Same floor area | −4.2% | −6.4% to −2.0% |
| + same property type | −1.5% | −3.7% to +0.8% |
| + same build period | +0.7% | −1.8% to +3.2% |
| + same year of sale | +1.0% | −1.5% to +3.5% |
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 NW1
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| NW1 0 | 431 | +2% | +1.4% | −3.0% to +5.9% |
| NW1 1 | 217 | −6% | −1.3% | −6.8% to +4.5% |
| NW1 2 | 54 | −10% | too few | — |
| NW1 3 | 121 | +5% | too few | — |
| NW1 4 | 195 | −8% | too few | — |
| NW1 5 | 243 | +6% | +3.9% | −3.2% to +11.6% |
| NW1 6 | 497 | +6% | +5.8% ▲ | +0.3% to +11.6% |
| NW1 7 | 605 | −10% | +3.0% | −3.3% to +9.7% |
| NW1 8 | 492 | −15% | −3.7% | −10.1% to +3.2% |
| NW1 9 | 678 | −1% | +2.9% | −1.7% to +7.6% |
▲ 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 NW1
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 6 | too few |
| B | 562 | £10,538 |
| C | 1,284 | £10,215 |
| D | 1,234 | £10,535 |
| E | 373 | £11,250 |
| F | 63 | £12,498 |
| G | 11 | £17,808 |
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.