South Derbyshire has the highest share of energy-efficient homes of any shire district in England — not a coastal enclave or a wealthy commuter belt, but a former coalfield district south of Derby built around Swadlincote and the A38 corridor. Land Registry and EPC data show a district that is both cheap to buy and unusually cheap to heat, and the reason is the same in both cases: it has built more new homes, relative to its size, than almost anywhere else in the East Midlands.
The headline number
Of English shire districts with at least 100 EPC certificates on record, South Derbyshire ranks first for the share of homes rated EPC C or above: 58.7% of the 26,712 latest certificates on file, ahead of Tewkesbury (57.0%) and the Vale of White Horse (55.6%). The 2025 median sale price for a house or flat in the district was £260,000 (2,007 sales, category-A Land Registry transactions), close to the England & Wales median of £295,000 and well short of the premium usually associated with the greenest housing stock, which in most cities tracks new coastal or commuter developments priced well above the national average.
Why: new-build share, not just newer boilers
The mechanism is the same one that explains EPC ratings almost everywhere: a property's rating tracks its build era. Nationally, homes built from 2003 onward are rated C or above 92.9% of the time, against 19.1% for pre-1945 stock — the difference comes from tightened Building Regulations on insulation, glazing and heating. South Derbyshire simply has more of the newer stock than its neighbours. Land Registry sales flagged as new build between 2015 and 2024 (a window chosen to avoid the registration lag that under-counts 2025 new-build sales) made up 28.9% of the district's transactions — close to double the next-highest district in this comparison. On the EPC register itself, an estimated 27% of dated certificates in the district correspond to homes built in 2003 or later, against around 14% built before 1930.
The wider East Midlands new-build belt
South Derbyshire sits at the top of a small cluster of East Midlands and Lincolnshire districts where estate-scale new building over the past two decades has pushed EPC ratings well above the national average without pushing prices into the premium tier:
| District | 2025 median price | EPC C+ share | New-build share, 2015–24 | Council tax Band D, 2026-27 |
|---|---|---|---|---|
| South Derbyshire | £260,000 | 58.7% | 28.9% | £2,339.61 |
| Tamworth | £250,000 | 47.1% | 16.3% | £2,300.76 |
| North Kesteven | £245,000 | 48.9% | 14.1% | £2,337.81 |
| South Kesteven | £260,000 | 46.1% | 10.9% | £2,260.00 |
| Newark and Sherwood | £237,000 | 45.6% | 16.3% | £2,682.10 |
| Bolsover | £185,000 | 46.3% | 18.0% | £2,559.41 |
2025 medians are category-A Land Registry sales (detached, semi-detached, terraced and flats); EPC shares use the latest certificate per address. Fetched 2026-09-22.
South Derbyshire is the outlier on both axes: the highest EPC C+ share in the set by nine points and, tied with South Kesteven, one of the two priciest by median — though at £260,000 it is still a little under the England & Wales median. Bolsover, at the cheaper end, shows that new-build share alone doesn't guarantee the top EPC ranking; its 18.0% new-build share outpaces most of the table but its older mining-town core keeps its C+ share mid-table.
What the stock actually looks like
South Derbyshire's 2025 sales were detached-led — 908 of the 2,007 category-A sales (45%) were detached houses, averaging £373,566, against 689 semis (34%, averaging £233,398), 327 terraces (16%, £193,187) and 83 flats (4%, £176,333). The median floor area across the district's EPC-registered stock is 89.8 sqm. That property mix — larger, newer, estate-built houses rather than flats or period conversions — is itself part of the EPC story: purpose-built modern houses generally out-perform older conversions on efficiency, independent of location.
A worked example at the district median
A buyer purchasing a home at South Derbyshire's £260,000 2025 median, in a postcode such as DE11 (Swadlincote), would face:
- Stamp Duty: £3,000 for a standard home-mover; £0 for a first-time buyer (the district's median sits under the £300,000 first-time buyer nil-rate threshold); £16,000 if buying an additional property, at the current 5% surcharge.
- Mortgage: on a 75% loan-to-value basis (a 25% deposit of £65,000), a 25-year repayment mortgage at the Bank of England's most recently quoted 5-year fixed rate of 4.32% (as of 1 April 2026) works out to roughly £1,064 a month on the £195,000 borrowed.
- Council tax: Band D in South Derbyshire is £2,339.61 for 2026-27 — below the England-wide average of £2,410.97 across all 296 billing authorities.
None of these figures reflects any individual property's condition, lender terms or personal circumstances; try the mortgage calculator or the Stamp Duty calculator with your own numbers.
The mirror image
The pattern here is close to the exact opposite of what shows up in East Lancashire's older terraced streets, where cheap prices come from a much older housing stock that scores poorly on energy efficiency and faces a steeper retrofit bill. South Derbyshire's new-build estates deliver a similar price point without that retrofit overhang — though buyers should note that a lower EPC-driven running-cost gap is not the same as a low purchase price forever staying that way, and modelled EPC running costs use assumptions that don't always match current energy bills.
For the neighbouring pattern one county east, see Lincolnshire's new-build house belt, which covers North Kesteven and South Kesteven in more detail. For the closest large town, Derby's own market sits immediately north of South Derbyshire, and the wider Nottingham, Derby and Leicester comparison sets all three cities against their surrounding districts. For a fuller cost breakdown at a comparable price point, see the true cost of buying a £250,000 home in the UK.
Figures are based on 2,007 Land Registry transactions and 26,712 EPC certificates for South Derbyshire alone, plus 2026-27 council tax data for all 296 English billing authorities — see more UK property cost analysis on Homecost.
Speak to a qualified adviser before acting on any mortgage, tax or property decision.