EPC rating and sold prices in M3 (Salford)
In postcode district M3 (Salford), homes rated EPC C or better sold for 28% more per square metre than D–G homes (median £3,681 vs £2,879, 4,244 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 5.4% more (95% range +2.4% to +8.5%). 1 of 3 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 62 m² against 61 m² for D–G; the most common build period is 2012 onwards for C+ and 2003–2006 for D–G; 2% of C+ and 5% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +28% | — |
| Whole price, nothing held equal | +25.9% | +21.3% to +30.7% |
| Same floor area | +26.9% | +23.4% to +30.4% |
| + same property type | +26.6% | +23.1% to +30.1% |
| + same build period | +7.4% | +4.3% to +10.7% |
| + same year of sale | +5.4% | +2.4% to +8.5% |
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 M3
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| M3 1 | 71 | +10% | too few | — |
| M3 2 | 42 | +5% | too few | — |
| M3 3 | 188 | +5% | too few | — |
| M3 4 | 881 | +5% | +4.2% | −0.4% to +8.9% |
| M3 5 | 842 | +92% | too few | — |
| M3 6 | 1,060 | +15% | 0.0% | −3.8% to +4.0% |
| M3 7 | 1,160 | +51% | +6.6% ▲ | +1.9% to +11.5% |
▲ 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 M3
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| B | 1,877 | £4,068 |
| C | 1,832 | £3,250 |
| D | 442 | £2,879 |
| E | 81 | £2,936 |
| F | 11 | £2,732 |
| G | 1 | too few |
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.