EPC rating and sold prices in BA3 (Bath and North East Somerset)
In postcode district BA3 (Bath and North East Somerset), homes rated EPC C or better sold for 5% more per square metre than D–G homes (median £3,037 vs £2,901, 6,001 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.2% more (95% range +1.0% to +3.5%). 2 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 86 m² against 87 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 65% of C+ and 62% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +5% | — |
| Whole price, nothing held equal | +5.8% | +3.6% to +8.1% |
| Same floor area | +4.5% | +3.2% to +5.8% |
| + same property type | +4.2% | +3.0% to +5.4% |
| + same build period | +6.0% | +4.3% to +7.7% |
| + same year of sale | +2.2% | +1.0% 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 BA3
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| BA3 2 | 1,836 | +8% | +1.8% | 0.0% to +3.6% |
| BA3 3 | 1,816 | +6% | +2.0% ▲ | +0.3% to +3.7% |
| BA3 4 | 1,316 | +3% | +0.9% | −2.3% to +4.2% |
| BA3 5 | 1,033 | +1% | +4.5% ▲ | +0.8% to +8.3% |
▲ 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 BA3
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 36 | £3,474 |
| B | 1,057 | £2,995 |
| C | 1,384 | £3,094 |
| D | 2,422 | £2,961 |
| E | 856 | £2,771 |
| F | 195 | £2,622 |
| G | 51 | £2,462 |
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.