| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £15 – £30 | £122 | 0.2 yrs | +4.9 pts |
| Draughtproofing | — | £80 – £120 | £120 | 0.8 yrs | +4.8 pts |
| High-performance doors | — | £1,000 – £0 | £114 | 4.4 yrs | +4.6 pts · reaches E |
| Floor insulation | — | £800 – £1,200 | £143 | 7.0 yrs | +5.7 pts |
| Cavity wall insulation | — | £500 – £1,500 | £107 | 9.4 yrs | +4.3 pts |
| Biomass boiler | −£5,000 Boiler Upgrade Scheme | £2,000 – £8,000 | £475 | 10.5 yrs | +19.0 pts · reaches D |
| Solar water heating | — | £4,000 – £6,000 | £111 | 45.1 yrs | +4.4 pts · reaches C |
| Solar photovoltaic panels(optional, beyond C) | — | £9,000 – £14,000 | £132 | 50+ yrs | +5.3 pts |
| Double glazing(optional, beyond C) | — | £3,300 – £6,500 | £52 | 50+ yrs | +2.1 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 £1,192 a year — a 9.4% annual return on £12,623.
Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.
Sold prices
Estimated today: £65,824 HPI-indexed estimate, not a valuation
Preston Street: 35 sales since 1995 · £73,500 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Michael's CofE Primary School, Great Lever | Primary | 0.4 mi | — |
| Ss Simon & Jude CofE Primary School, Bolton | Primary | 0.4 mi | — |
| St Stephen and All Martyrs' CofE School, Lever Bridge | Primary | 0.6 mi | — |
| Mount St Joseph RC High School a Voluntary Academy | Secondary | 0.8 mi | Not in the KS4 performance tables |
| Harper Green School | Secondary | 1.0 mi | Progress 8 -0.11 · average (2023/24) |
| Bolton Muslim Girls School | Secondary | 1.1 mi | Progress 8 +1.06 · well 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.
Preston Street
How this home sits against its street.