| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Loft insulation | — | £100 – £350 | £50 | 4.5 yrs | +1.9 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £64 | 40.3 yrs | +2.4 pts · reaches C |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £97 | 46.3 yrs | +3.7 pts |
| Floor insulation | — | £4,000 – £6,000 | £105 | 47.6 yrs | +4.0 pts |
| Solar water heating | — | £4,000 – £6,000 | £81 | 50+ yrs | +3.1 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 £398 a year — a 2.3% annual return on £17,325.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £2,150 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £366,365 HPI-indexed estimate, not a valuation
Colby Road: 34 sales since 1995 · £200,222 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Wigan Worsley Mesnes Community Primary School | Primary | 0.5 mi | — |
| St Paul's Church of England Primary School | Primary | 0.7 mi | — |
| Marus Bridge Primary School | Primary | 0.7 mi | — |
| Hawkley Hall High School | Secondary | 0.2 mi | Progress 8 -0.14 · average (2023/24) |
| The Deanery Church of England High School and Sixth Form College | Secondary | 1.7 mi | Progress 8 -0.31 · below average (2023/24) |
| Dean Trust Rose Bridge | Secondary | 2.0 mi | Progress 8 -0.60 · 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.
Colby Road
How this home sits against its street.