| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Loft insulation | — | £100 – £350 | £59 | 3.8 yrs | +2.4 pts |
| Floor insulation | — | £800 – £1,200 | £124 | 8.0 yrs | +5.0 pts |
| Cavity wall insulation | — | £500 – £1,500 | £93 | 10.8 yrs | +3.7 pts · reaches C |
| Low energy lighting | — | £135 | £5 | 24.8 yrs | +0.2 pts |
| Wind turbine | — | £1,500 – £4,000 | £103 | 26.7 yrs | +4.1 pts |
| Solar photovoltaic panels | — | £9,000 – £14,000 | £115 | 50+ yrs | +4.6 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 £500 a year — a 3.0% annual return on £16,610.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2012, states £1,141 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £663,125 HPI-indexed estimate, not a valuation
Warren Lea: 11 sales since 1995 · £560,000 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Mary's Catholic Voluntary Academy | Primary | 0.8 mi | — |
| Ludworth Primary School | Primary | 0.9 mi | — |
| Mellor Primary School | Primary | 1.5 mi | — |
| Alder Community High School | Secondary | 1.9 mi | Progress 8 -0.28 · below average (2023/24) |
| Marple Hall School | Secondary | 2.0 mi | Not in the KS4 performance tables |
| Harrytown Catholic High School | Secondary | 2.4 mi | Progress 8 -0.32 · 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.
Warren Lea
How this home sits against its street.