EPC rating and sold prices in BS9 (Bristol)
In postcode district BS9 (Bristol), homes rated EPC C or better sold for 3% less per square metre than D–G homes (median £4,386 vs £4,533, 5,055 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 3.3% less (95% range −4.8% to −1.7%). 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 91 m² against 113 m² for D–G; both groups are most often built in 1930–1949; 46% of C+ and 67% 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 | −17.8% | −20.4% to −15.0% |
| Same floor area | −1.5% | −3.2% to +0.2% |
| + same property type | −0.2% | −1.9% to +1.4% |
| + same build period | +0.6% | −1.2% to +2.5% |
| + same year of sale | −3.3% | −4.8% to −1.7% |
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 BS9
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| BS9 1 | 1,247 | −9% | −3.0% | −6.0% to +0.2% |
| BS9 2 | 1,002 | 0% | −2.0% | −4.9% to +0.9% |
| BS9 3 | 1,304 | +5% | +3.7% ▲ | +1.2% to +6.3% |
| BS9 4 | 1,502 | −2% | −1.8% | −4.5% to +0.9% |
▲ 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 BS9
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 15 | £5,377 |
| B | 162 | £4,347 |
| C | 1,275 | £4,386 |
| D | 2,379 | £4,605 |
| E | 1,000 | £4,375 |
| F | 192 | £4,258 |
| G | 32 | £4,104 |
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.