EPC rating and sold prices in EX4 (Exeter)
In postcode district EX4 (Exeter), homes rated EPC C or better sold for 5% more per square metre than D–G homes (median £3,205 vs £3,042, 7,772 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.1% more (95% range +1.1% to +3.1%). 4 of 8 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 76 m² against 81 m² for D–G; the most common build period is 2012 onwards for C+ and 1950–1966 for D–G; 35% of C+ and 43% 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 | −4.5% | −6.5% to −2.5% |
| Same floor area | +2.8% | +1.6% to +3.9% |
| + same property type | +5.7% | +4.6% to +6.8% |
| + same build period | +5.6% | +4.3% to +6.8% |
| + same year of sale | +2.1% | +1.1% to +3.1% |
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 EX4
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| EX4 1 | 1,427 | +4% | +3.4% ▲ | +1.4% to +5.5% |
| EX4 2 | 1,224 | +5% | +4.1% ▲ | +2.2% to +6.0% |
| EX4 3 | 331 | −8% | too few | — |
| EX4 4 | 814 | +4% | +2.6% | −1.8% to +7.2% |
| EX4 5 | 564 | +6% | +0.4% | −2.2% to +3.0% |
| EX4 6 | 796 | +6% | +4.2% ▲ | +0.9% to +7.6% |
| EX4 7 | 664 | +12% | +4.6% ▲ | +1.6% to +7.7% |
| EX4 8 | 1,299 | +4% | +1.4% | −1.2% to +4.1% |
| EX4 9 | 616 | +9% | +0.7% | −2.1% to +3.6% |
▲ 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 EX4
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 92 | £3,421 |
| B | 745 | £3,224 |
| C | 2,462 | £3,183 |
| D | 3,353 | £3,099 |
| E | 874 | £2,925 |
| F | 180 | £2,858 |
| G | 66 | £2,881 |
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.