| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £297 | 3.4 yrs | +10.9 pts · reaches F |
| Low energy lighting | — | £60 | £13 | 4.6 yrs | +0.5 pts |
| Change of heating system | — | £3,000 – £7,000 | £849 | 5.9 yrs | +31.1 pts · reaches D |
| Solar water heating | — | £4,000 – £6,000 | £231 | 21.7 yrs | +8.5 pts · reaches C |
| Solar photovoltaic panels(optional, beyond C) | — | £9,000 – £14,000 | £275 | 41.8 yrs | +10.1 pts |
Grants verified 20 August 2026. Costs are the register’s indicative ranges. Savings are restated at the fuel prices assumed in July 2026. Points per measure are estimated from 19.9 million certificates and rescaled to this home’s own certificate delta; the total is the register’s figure.
Running costs
The full plan saves £1,390 a year — a 12.6% annual return on £11,060.
Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.
Sold prices
Estimated today: £217,923 HPI-indexed estimate, not a valuation
Calbourne Crescent: 59 sales since 1995 · £155,347 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Richard's RC Primary School | Primary | 0.2 mi | — |
| Crowcroft Park Primary School | Primary | 0.2 mi | — |
| Gorton Primary School | Primary | 0.3 mi | — |
| St Peter's RC High School | Secondary | 0.4 mi | Progress 8 +0.57 · well above average (2023/24) |
| Co-op Academy Belle Vue | Secondary | 0.5 mi | Not in the KS4 performance tables |
| Cedar Mount Academy | Secondary | 0.6 mi | Progress 8 -0.71 · well below average (2023/24) |
Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.
Calbourne Crescent
How this home sits against its street.