EPC rating and sold prices in BA1 (Bath and North East Somerset)
In postcode district BA1 (Bath and North East Somerset), homes rated EPC C or better sold for 3% more per square metre than D–G homes (median £4,694 vs £4,557, 6,407 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.5% less (95% range −4.0% to −0.9%). 0 of 6 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 90 m² against 95 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 33% of C+ and 38% 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 | −0.8% | −3.6% to +2.2% |
| Same floor area | +3.9% | +2.4% to +5.4% |
| + same property type | +2.5% | +1.0% to +3.9% |
| + same build period | −0.6% | −2.3% to +1.0% |
| + same year of sale | −2.5% | −4.0% to −0.9% |
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 BA1
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| BA1 1 | 120 | −1% | too few | — |
| BA1 2 | 728 | +2% | −1.3% | −6.0% to +3.7% |
| BA1 3 | 1,119 | +11% | −1.2% | −4.3% to +2.0% |
| BA1 4 | 784 | −1% | +0.2% | −2.8% to +3.3% |
| BA1 5 | 847 | +20% | +2.5% | −2.2% to +7.4% |
| BA1 6 | 1,288 | −4% | +0.1% | −2.3% to +2.4% |
| BA1 7 | 981 | −3% | +0.9% | −2.4% to +4.3% |
| BA1 8 | 162 | +21% | too few | — |
| BA1 9 | 378 | −4% | 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 BA1
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 1 | too few |
| B | 824 | £4,957 |
| C | 1,487 | £4,514 |
| D | 2,749 | £4,575 |
| E | 1,113 | £4,541 |
| F | 199 | £4,464 |
| G | 34 | £4,506 |
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.