EPC rating and sold prices in PO12 (Gosport)
In postcode district PO12 (Gosport), homes rated EPC C or better sold for 4% more per square metre than D–G homes (median £2,736 vs £2,638, 8,616 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 1.6% more (95% range +0.7% to +2.6%). 3 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 74 m² against 80 m² for D–G; both groups are most often built in 1930–1949; 21% of C+ and 35% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +4% | — |
| Whole price, nothing held equal | −5.7% | −7.4% to −3.9% |
| Same floor area | +2.0% | +0.7% to +3.2% |
| + same property type | +8.5% | +7.4% to +9.6% |
| + same build period | +4.8% | +3.7% to +5.9% |
| + same year of sale | +1.6% | +0.7% to +2.6% |
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 PO12
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| PO12 1 | 1,871 | +10% | +4.2% ▲ | +1.8% to +6.6% |
| PO12 2 | 1,820 | −4% | −0.9% | −2.6% to +0.9% |
| PO12 3 | 2,177 | +8% | +3.7% ▲ | +2.2% to +5.3% |
| PO12 4 | 2,748 | +6% | +1.8% ▲ | +0.4% to +3.3% |
▲ 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 PO12
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 3 | too few |
| B | 392 | £2,860 |
| C | 3,132 | £2,727 |
| D | 4,129 | £2,677 |
| E | 783 | £2,493 |
| F | 138 | £2,410 |
| G | 39 | £2,278 |
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.