| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £15 – £30 | £80 | 0.3 yrs | +5.1 pts |
| Floor insulation | — | £800 – £1,200 | £93 | 10.7 yrs | +6.0 pts · reaches C |
| Heating controls | — | £350 – £450 | £34 | 11.8 yrs | +2.2 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £57 | 45.4 yrs | +3.7 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £86 | 50+ yrs | +5.5 pts · reaches B |
| Solar water heating(optional, beyond B) | — | £4,000 – £6,000 | £72 | 50+ yrs | +4.6 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 £351 a year — a 4.1% annual return on £8,523.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2019, states £734 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £191,644 HPI-indexed estimate, not a valuation
Sunadale Close: 27 sales since 1995 · £160,042 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Ethelbert's Roman Catholic Primary School, a Voluntary Academy | Primary | 0.1 mi | — |
| Haslam Park Primary School | Primary | 0.1 mi | — |
| Brandwood Primary School | Primary | 0.3 mi | — |
| Ladybridge High School | Secondary | 0.7 mi | Progress 8 -0.05 · average (2023/24) |
| Bolton Muslim Girls School | Secondary | 0.7 mi | Progress 8 +1.06 · well above average (2023/24) |
| University Collegiate School | Secondary | 0.8 mi | Progress 8 -0.98 · well 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.
Sunadale Close
How this home sits against its street.