| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £30 – £400 | £171 | 1.3 yrs | +6.6 pts |
| Low energy lighting | — | £40 | £9 | 4.6 yrs | +0.3 pts |
| Heating controls | — | £450 | £73 | 6.2 yrs | +2.8 pts |
| Cavity wall insulation | — | £1,500 – £500 | £150 | 6.7 yrs | +5.8 pts · reaches D |
| Band A condensing boiler | — | £3,000 – £0 | £123 | 12.2 yrs | +4.8 pts |
| Floor insulation | — | £6,000 – £0 | £200 | 15.0 yrs | +7.7 pts · reaches C |
| Solar water heating | — | £6,000 – £0 | £156 | 19.3 yrs | +6.0 pts |
| Solar photovoltaic panels | — | £8,000 – £0 | £186 | 21.6 yrs | +7.2 pts · reaches B |
| Double glazing(optional, beyond B) | — | £6,500 – £500 | £73 | 48.2 yrs | +2.8 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 £1,067 a year — a 8.1% annual return on £13,205.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £1,343 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £215,923 HPI-indexed estimate, not a valuation
Holly Mill Crescent: 72 sales since 1995 · £169,625 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Paul's CofE Primary School, Astley Bridge | Primary | 0.2 mi | — |
| Holy Infant and St Anthony RC Primary School | Primary | 0.2 mi | — |
| Sharples Primary School | Primary | 0.4 mi | — |
| Sharples School | Secondary | 0.4 mi | Progress 8 +0.86 · well above average (2023/24) |
| Thornleigh Salesian College | Secondary | 0.6 mi | Progress 8 -0.22 · below average (2023/24) |
| Eden Boys' School, Bolton | Secondary | 0.7 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.
Holly Mill Crescent
How this home sits against its street.