| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Double glazing | — | £1,400 – £400 | £17 | 50+ yrs | +1.9 pts · reaches C |
| Floor insulation | — | £6,000 – £0 | £48 | 50+ yrs | +5.2 pts |
| Solar water heating | — | £6,000 – £0 | £37 | 50+ yrs | +4.1 pts |
| Solar photovoltaic panels | — | £8,000 – £0 | £44 | 50+ yrs | +4.8 pts · reaches B |
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 £146 a year — a 1.3% annual return on £10,900.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2018, states £632 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £415,800 HPI-indexed estimate, not a valuation
Centre Walk: 22 sales since 1995 · £347,625 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Hazlemere Church of England Combined School | Primary | 0.3 mi | — |
| Manor Farm Community Infant School | Primary | 0.4 mi | — |
| Manor Farm Junior School | Primary | 0.4 mi | — |
| Sir William Ramsay School | Secondary | under 0.1 mi | Attainment 8 35.4 · no Progress 8 published |
| The Royal Grammar School, High Wycombe | Secondary | 1.3 mi | Progress 8 +1.13 · well above average (2023/24) |
| Holmer Green Senior School | Secondary | 1.4 mi | Progress 8 +0.40 · above 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.
Centre Walk
How this home sits against its street.