Tewkesbury in Gloucestershire and the Vale of White Horse in Oxfordshire hold the number two and number three spots in England's ranking of shire districts by energy-efficient housing stock — 57.0% and 55.6% of homes rated EPC C or above. Only South Derbyshire, a former coalfield district in the East Midlands, scores higher. But where South Derbyshire's green housing sits at a below-average £260,000 median, Tewkesbury and the Vale of White Horse price at £335,000 and £400,000 — 13% and 35% above England's £295,650 median sale price in 2025 (HM Land Registry Price Paid Data, category A, houses and flats, n=795,417). Same energy-efficiency mechanism, opposite price outcome.
The two districts, by the numbers
| Tewkesbury (Gloucestershire) | Vale of White Horse (Oxfordshire) | South Derbyshire, for comparison | |
|---|---|---|---|
| 2025 median sale price | £335,000 (n=1,781) | £400,000 (n=2,394) | £260,000 (n=2,007) |
| vs England 2025 median (£295,650) | +13.3% | +35.3% | −12.1% |
| EPC C-or-above share | 57.0% | 55.6% | 58.7% |
| New-build share, 2015–2024 | 22.8% | 26.3% | 28.9% |
| Median EPC floor area | 91 m² | 97 m² | 90 m² |
| Council tax Band D, 2026–27 | £2,340.53 | £2,577.44 | — |
Sale prices are HM Land Registry Price Paid Data (category A transactions, detached/semi/terraced/flat, sold in 2025). EPC shares use the latest certificate per address from EPC Open Data. New-build share uses 2015–2024 sales — the most recent year is excluded because new-build completions register with the Land Registry on a lag of several months, which understates the 2025 figure.
Same mechanism, different price story
England's EPC register tracks build era closely: homes built after 2003, under tighter Building Regulations insulation and glazing standards, are rated C-or-above roughly five times more often than pre-1945 stock. That single relationship explains most of the variation in EPC scores between English districts, regardless of what the houses cost.
Tewkesbury and the Vale of White Horse fit the pattern: both have new-build shares (22.8% and 26.3% of 2015–2024 sales) in the same range as South Derbyshire's 28.9%, which is the highest of any English shire district. The difference is what the new building consists of. South Derbyshire's new-build supply has followed former-coalfield regeneration — estate housing built on reclaimed colliery land, priced at or below the regional norm. Tewkesbury's new build clusters around Cotswold-fringe commuter villages such as Bishop's Cleeve, within reach of Cheltenham and the M5; the Vale of White Horse's sits around Oxford-facing expansion at Grove and Wantage. Both are new build for the Oxford and Cheltenham commuter markets rather than for affordability, and the sale prices reflect that.
The practical read for a buyer: a high EPC-efficiency score for a district says something real about the age and construction standard of the housing stock, but it says nothing about whether that housing is cheap. Homecost's analysis of England's cheap-to-buy, low-EPC districts found close to zero correlation between a district's median price and its EPC efficiency across all 164 English shire districts — Tewkesbury and the Vale of White Horse sit on the "green and expensive" side of that same finding, with South Derbyshire as the "green and cheap" counterpart.
Property type and what's actually selling
Both districts are detached-led markets, consistent with their commuter-village character rather than dense urban terraces:
| Type | Tewkesbury average | Sales (n) | Vale of White Horse average | Sales (n) |
|---|---|---|---|---|
| Detached | £516,072 | 737 | £618,956 | 870 |
| Semi-detached | £315,770 | 578 | £400,123 | 760 |
| Terraced | £260,032 | 348 | £339,103 | 479 |
| Flat | £159,797 | 118 | £235,149 | 285 |
Detached houses account for the largest single share of 2025 sales in both districts. Even the entry-level flat segment in the Vale of White Horse (£235,149 average) sits close to Tewkesbury's overall district median, a reminder that "cheapest available" in a commuter-belt district can still be expensive relative to the national picture.
What it costs each month
At the Bank of England's most recently quoted 75% loan-to-value five-year fixed rate (4.32%, effective April 2026), a 25% deposit and a 25-year term produce the following:
| Tewkesbury (£335,000) | Vale of White Horse (£400,000) | |
|---|---|---|
| Mortgage (75% LTV) | £251,250 loan → £1,371/month | £300,000 loan → £1,637/month |
| Council tax, Band D | £195/month | £215/month |
| Combined monthly | £1,566 | £1,852 |
These figures assume Band D council tax and a standard repayment mortgage at the quoted rate; actual costs depend on the property's own council tax band, the buyer's deposit and the lender and product chosen. Try the numbers against a specific property on the Homecost mortgage comparison calculator, or look up any address in either district — for example a Tewkesbury postcode or a Vale of White Horse postcode — to see the full cost breakdown for that property.
Stamp duty at the median
Both districts sit above the £300,000 first-time buyer nil-rate threshold, so first-time buyers in either market pay some Stamp Duty Land Tax, unlike in South Derbyshire where the median clears the threshold with room to spare:
| Tewkesbury median (£335,000) | Vale of White Horse median (£400,000) | |
|---|---|---|
| Standard SDLT | £6,750 | £10,000 |
| First-time buyer SDLT | £1,750 | £5,000 |
Figures are calculated against HMRC's current residential SDLT bands, with first-time buyer relief applying the £300,000 nil-rate band and 5% on the portion up to £500,000. Individual liability depends on the buyer's circumstances, including whether they own property elsewhere; a conveyancer confirms the final figure on completion.
Where this fits
Tewkesbury and the Vale of White Horse complete a fuller picture of England's greenest shire districts, alongside the full ranked list of the 15 most energy-efficient shire districts: only South Derbyshire combines a high EPC score with a below-average price; everywhere else in the top tier, buyers pay a premium for it. For more on how house prices vary across England's regions, see Homecost's regional price coverage.
Speak to a qualified financial adviser or mortgage broker before acting on any of the figures above.