EPC rating and sold prices in LN4 (North Kesteven)
In postcode district LN4 (North Kesteven), homes rated EPC C or better sold for 10% more per square metre than D–G homes (median £2,355 vs £2,149, 7,523 sales). Like for like — same size, type, build period and year — homes rated C or better sold for 1.5% more (95% range +0.3% to +2.8%). 0 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 92 m² against 90 m² for D–G; the most common build period is 2012 onwards for C+ and 1967–1975 for D–G; 82% of C+ and 85% of D–G sales are detached or semi-detached houses.
| Comparing C+ with D–G homes… | Difference | 95% range |
|---|---|---|
| Raw gap per m² (medians) | +10% | — |
| Whole price, nothing held equal | +13.8% | +11.6% to +15.9% |
| Same floor area | +9.7% | +8.4% to +11.0% |
| + same property type | +12.9% | +11.6% to +14.2% |
| + same build period | +5.1% | +3.6% to +6.7% |
| + same year of sale | +1.5% | +0.3% to +2.8% |
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 LN4
| Sector | Sales | Raw gap | Like-for-like | 95% range |
|---|---|---|---|---|
| LN4 1 | 2,276 | +9% | +0.2% | −1.7% to +2.1% |
| LN4 2 | 1,853 | +6% | +0.1% | −1.9% to +2.2% |
| LN4 3 | 1,421 | +10% | +1.6% | −1.2% to +4.5% |
| LN4 4 | 1,973 | +17% | +0.1% | −2.2% to +2.5% |
▲ 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 LN4
| EPC band (last certificate before sale) | Sales | Median £ per m² |
|---|---|---|
| A | 53 | £2,738 |
| B | 1,388 | £2,478 |
| C | 2,002 | £2,247 |
| D | 2,790 | £2,233 |
| E | 905 | £1,994 |
| F | 302 | £1,900 |
| G | 83 | £1,634 |
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.