| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £223 | 4.5 yrs | +7.3 pts |
| Cavity wall insulation | — | £500 – £1,500 | £167 | 6.0 yrs | +5.5 pts |
| Change of heating system | — | £3,000 – £7,000 | £637 | 7.8 yrs | +20.8 pts · reaches C |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £207 | 21.8 yrs | +6.8 pts |
| Solar water heating | — | £4,000 – £6,000 | £173 | 28.9 yrs | +5.7 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 £1,407 a year — a 8.5% annual return on £16,500.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2020, states £1,467 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £63,410 HPI-indexed estimate, not a valuation
Charles Holden Street: 65 sales since 1995 · £88,700 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Pikes Lane Primary School | Primary | 0.2 mi | — |
| Gilnow Primary School | Primary | 0.2 mi | — |
| Gaskell Community Primary School | Primary | 0.5 mi | — |
| University Collegiate School | Secondary | 0.3 mi | Progress 8 -0.98 · well below average (2023/24) |
| Bolton Muslim Girls School | Secondary | 0.7 mi | Progress 8 +1.06 · well above average (2023/24) |
| Eden Boys' School, Bolton | Secondary | 1.2 mi | Progress 8 +0.45 · 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.
Charles Holden Street
How this home sits against its street.