| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Flat roof insulation | — | £900 – £1,200 | £195 | 5.4 yrs | +3.0 pts |
| Cavity wall insulation | — | £900 – £1,500 | £192 | 6.2 yrs | +3.0 pts |
| Biomass boiler | −£5,000 Boiler Upgrade Scheme | £5,000 – £7,000 | £855 | 7.0 yrs | +13.3 pts · reaches D |
| Floor insulation | — | £5,000 – £10,000 | £257 | 29.2 yrs | +4.0 pts |
| Solar photovoltaic panels | — | £8,000 – £10,000 | £238 | 37.8 yrs | +3.7 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 £1,738 a year — a 7.0% annual return on £24,750.
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
No sale recorded for this address since 1995.
Marina Drive: 35 sales since 1995 · £129,163 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Cuthbert's Catholic Primary School Wigan | Primary | 0.4 mi | — |
| Highfield St Matthew's Church of England Primary School | Primary | 0.4 mi | — |
| Westfield Community School | Primary | 0.6 mi | — |
| Dean Trust Wigan | Secondary | 0.9 mi | Progress 8 -1.12 · well below average (2023/24) |
| St Peter's Catholic High School | Secondary | 1.4 mi | Progress 8 -0.12 · average (2023/24) |
| Hawkley Hall High School | Secondary | 1.6 mi | Progress 8 -0.14 · 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.
Marina Drive
How this home sits against its street.