| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Flat roof insulation | — | £900 – £1,200 | £177 | 5.9 yrs | +4.3 pts |
| Cavity wall insulation | — | £900 – £1,500 | £174 | 6.9 yrs | +4.2 pts · reaches C |
| Band A condensing boiler(optional, beyond C) | — | £2,200 – £3,500 | £143 | 19.9 yrs | +3.5 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 £352 a year — a 15.6% annual return on £2,250.
Energy costs as modelled on the certificate, not a bill.
Sold prices
No sale recorded for this address since 1995.
Park Parade Centre: 15 sales since 1995 · £228,500 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Cedar Park School & Nursery | Primary | 0.3 mi | — |
| Holmer Green First School and Pre-School | Primary | 0.5 mi | — |
| Widmer End Community Combined School | Primary | 0.6 mi | — |
| Sir William Ramsay School | Secondary | 0.7 mi | Attainment 8 35.4 · no Progress 8 published |
| Holmer Green Senior School | Secondary | 0.8 mi | Progress 8 +0.40 · above average (2023/24) |
| The Royal Grammar School, High Wycombe | Secondary | 1.7 mi | Progress 8 +1.13 · well 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.
Park Parade Centre
How this home sits against its street.