EPC rating and sold prices in SK6 (Stockport)
In postcode district SK6 (Stockport), homes rated EPC C or better sold for 0% less per square metre than D–G homes (median £2,901 vs £2,910, 9,119 sales). Like for like — same size, type, build period and year — the difference is −1.0% (95% range −2.2% to +0.2%): the EPC band itself is not reflected in sale prices here. 3 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 85 m² against 89 m² for D–G; both groups are most often built in 1950–1966; 55% of C+ and 74% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | 0% | — |
| Whole price, nothing held equal | −6.2% | −8.3% to −4.0% |
| Same floor area | −1.5% | −2.9% to −0.1% |
| + same property type | +5.2% | +3.8% to +6.6% |
| + same build period | +3.9% | +2.3% to +5.4% |
| + same year of sale | −1.0% | −2.2% to +0.2% |
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 SK6
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| SK6 1 | 1,451 | +3% | +1.9% | −0.6% to +4.4% |
| SK6 2 | 1,346 | −3% | +1.1% | −1.1% to +3.4% |
| SK6 3 | 873 | −7% | −4.8% ▼ | −8.3% to −1.1% |
| SK6 4 | 1,165 | −4% | −3.3% ▼ | −6.5% to 0.0% |
| SK6 5 | 937 | +6% | +4.9% ▲ | +1.3% to +8.7% |
| SK6 6 | 1,198 | +4% | +1.3% | −1.4% to +4.1% |
| SK6 7 | 1,381 | +6% | −2.1% | −4.8% to +0.7% |
| SK6 8 | 768 | −1% | +1.2% | −2.5% to +5.0% |
▲ 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 SK6
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 7 | too few |
| B | 490 | £3,049 |
| C | 2,336 | £2,879 |
| D | 4,648 | £2,957 |
| E | 1,383 | £2,821 |
| F | 217 | £2,740 |
| G | 38 | £2,630 |
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.