| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| High-performance doors | — | £1,500 – £500 | £254 | 3.9 yrs | +3.6 pts |
| Flat roof insulation | — | £850 – £1,500 | £241 | 4.9 yrs | +3.4 pts · reaches E |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £294 | 15.3 yrs | +4.2 pts |
| Floor insulation | — | £4,000 – £6,000 | £318 | 15.7 yrs | +4.5 pts |
| Solar water heating | — | £4,000 – £6,000 | £247 | 20.3 yrs | +3.5 pts |
| Solid wall insulation | — | £4,000 – £14,000 | £344 | 26.2 yrs | +4.9 pts · reaches D |
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 £1,699 a year — a 6.6% annual return on £25,675.
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: £248,331 HPI-indexed estimate, not a valuation
Guest Street: 206 sales since 1995 · £121,472 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Joseph's Catholic Primary School Leigh | Primary | 0.3 mi | — |
| St Thomas' CofE Primary School, Leigh | Primary | 0.3 mi | — |
| Leigh CofE Primary School | Primary | 0.5 mi | — |
| Bedford High School | Secondary | 0.7 mi | Progress 8 -0.24 · below average (2023/24) |
| The Westleigh School | Secondary | 1.5 mi | Progress 8 -0.81 · well below average (2023/24) |
| Fred Longworth High School | Secondary | 1.6 mi | Progress 8 -0.29 · 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.
Guest Street
How this home sits against its street.