EPC rating and sold prices in EX16 (Mid Devon)
In postcode district EX16 (Mid Devon), homes rated EPC C or better sold for 3% more per square metre than D–G homes (median £2,750 vs £2,659, 5,609 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 2.4% more (95% range +0.9% to +3.9%). 2 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 91 m² for D–G; the most common build period is 2012 onwards for C+ and before 1900 for D–G; 62% of C+ and 63% 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 | +1.6% | −0.9% to +4.1% |
| Same floor area | +5.9% | +4.3% to +7.5% |
| + same property type | +6.3% | +5.0% to +7.7% |
| + same build period | +5.6% | +3.7% to +7.5% |
| + same year of sale | +2.4% | +0.9% to +3.9% |
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 EX16
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| EX16 4 | 1,333 | +7% | +1.5% | −1.5% to +4.5% |
| EX16 5 | 954 | +11% | −1.2% | −4.6% to +2.3% |
| EX16 6 | 1,646 | +6% | +4.1% ▲ | +1.6% to +6.7% |
| EX16 7 | 575 | +10% | +0.6% | −3.7% to +5.1% |
| EX16 8 | 572 | −2% | +10.2% ▲ | +3.4% to +17.5% |
| EX16 9 | 529 | −7% | +6.3% | −0.6% to +13.7% |
▲ 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 EX16
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 47 | £3,421 |
| B | 992 | £2,828 |
| C | 1,498 | £2,679 |
| D | 1,809 | £2,738 |
| E | 871 | £2,600 |
| F | 310 | £2,419 |
| G | 82 | £2,408 |
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.