| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £5,000 – £10,000 | £188 | 39.8 yrs | +5.3 pts · reaches C |
| Solid wall insulation | — | £7,500 – £11,000 | £204 | 45.4 yrs | +5.8 pts |
| Solar photovoltaic panels | — | £8,000 – £10,000 | £174 | 50+ yrs | +4.9 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 £566 a year — a 2.2% annual return on £25,750.
Energy costs as modelled on the certificate, not a bill.
Sold prices
Estimated today: £202,302 HPI-indexed estimate, not a valuation
Hayway: 20 sales since 1995 · £156,542 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Irthlingborough Nursery and Infant School | Primary | 0.3 mi | — |
| Irthlingborough Junior School | Primary | 0.4 mi | — |
| Henry Chichele Primary School | Primary | 1.0 mi | — |
| Huxlow Academy | Secondary | 0.5 mi | Progress 8 -0.67 · well below average (2023/24) |
| Rushden Academy | Secondary | 1.8 mi | Progress 8 -0.39 · below average (2023/24) |
| The Ferrers School | Secondary | 1.8 mi | Progress 8 -0.28 · 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.
Hayway
How this home sits against its street.