EPC rating and sold prices in L32 (Knowsley)
In postcode district L32 (Knowsley), homes rated EPC C or better sold for 17% more per square metre than D–G homes (median £1,600 vs £1,369, 2,149 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 3.8% less (95% range −6.0% to −1.4%). 1 of 5 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 86 m² against 86 m² for D–G; both groups are most often built in 1950–1966; 59% of C+ and 55% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +17% | — |
| Whole price, nothing held equal | +16.7% | +12.3% to +21.3% |
| Same floor area | +14.2% | +10.6% to +17.9% |
| + same property type | +8.2% | +5.3% to +11.1% |
| + same build period | +5.2% | +2.0% to +8.4% |
| + same year of sale | −3.8% | −6.0% to −1.4% |
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 L32
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| L32 0 | 303 | 0% | −9.2% ▼ | −14.7% to −3.4% |
| L32 1 | 416 | +29% | +2.8% | −1.9% to +7.7% |
| L32 2 | 277 | +13% | +2.9% | −3.0% to +9.1% |
| L32 3 | 162 | +79% | too few | — |
| L32 4 | 190 | +6% | −0.7% | −7.9% to +7.0% |
| L32 5 | 66 | +13% | too few | — |
| L32 6 | 120 | +23% | too few | — |
| L32 7 | 145 | +28% | too few | — |
| L32 8 | 113 | +34% | too few | — |
| L32 9 | 357 | +10% | −3.2% | −7.8% to +1.6% |
▲ 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 L32
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 1 | too few |
| B | 375 | £1,967 |
| C | 1,035 | £1,420 |
| D | 590 | £1,430 |
| E | 125 | £1,227 |
| F | 17 | £1,080 |
| G | 6 | 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.