EPC rating and sold prices in M41 (Trafford)
In postcode district M41 (Trafford), homes rated EPC C or better sold for 3% more per square metre than D–G homes (median £3,178 vs £3,096, 6,898 sales). Like for like — same size, type, build period and year — the difference is −0.6% (95% range −1.8% to +0.7%): the EPC band itself is not reflected in sale prices here. 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 80 m² against 89 m² for D–G; both groups are most often built in 1930–1949; 52% of C+ and 73% 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 | −9.9% | −12.0% to −7.7% |
| Same floor area | 0.0% | −1.5% to +1.5% |
| + same property type | +5.4% | +3.9% to +7.0% |
| + same build period | +5.0% | +3.3% to +6.7% |
| + same year of sale | −0.6% | −1.8% to +0.7% |
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 M41
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| M41 0 | 1,015 | +3% | −0.5% | −3.2% to +2.4% |
| M41 5 | 1,190 | +3% | +0.3% | −3.2% to +3.8% |
| M41 6 | 1,089 | −2% | −1.6% | −4.5% to +1.3% |
| M41 7 | 873 | +5% | +1.9% | −1.0% to +4.9% |
| M41 8 | 1,095 | 0% | −0.9% | −3.4% to +1.6% |
| M41 9 | 1,636 | +4% | +1.1% | −1.4% to +3.7% |
▲ 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 M41
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 2 | too few |
| B | 398 | £3,128 |
| C | 1,368 | £3,197 |
| D | 3,679 | £3,156 |
| E | 1,261 | £2,945 |
| F | 157 | £2,939 |
| G | 33 | £2,669 |
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.