| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Cavity wall insulation | — | £900 – £1,500 | £121 | 10.0 yrs | +3.0 pts |
| Floor insulation | — | £5,000 – £10,000 | £161 | 46.5 yrs | +3.9 pts |
| Solid wall insulation | — | £7,500 – £11,000 | £175 | 50+ yrs | +4.3 pts |
| Solar photovoltaic panels | — | £8,000 – £10,000 | £149 | 50+ yrs | +3.7 pts · reaches C |
| Low energy lighting(optional, beyond C) | — | £1,170 – £1,365 | £7 | 50+ yrs | +0.2 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 £606 a year — a 2.2% annual return on £26,950.
Energy costs as modelled on the certificate, not a bill.
Sold prices
Estimated today: £293,737 HPI-indexed estimate, not a valuation
Cooper Street: 109 sales since 1995 · £216,385 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Springhead Infant and Nursery School | Primary | under 0.1 mi | — |
| Knowsley Junior School | Primary | 0.3 mi | — |
| Hey-with-Zion Primary School | Primary | 0.5 mi | — |
| Waterhead Academy | Secondary | 0.8 mi | Progress 8 -0.72 · well below average (2023/24) |
| Oasis Academy Leesbrook | Secondary | 1.0 mi | Progress 8 +0.12 · average (2023/24) |
| Mossley Hollins High School | Secondary | 1.9 mi | Not in the KS4 performance tables |
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.
Cooper Street
How this home sits against its street.