| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Air or ground source heat pump | −£7,500 Boiler Upgrade Scheme | £0 – £22,500 | £533 | 21.1 yrs | +19.9 pts · reaches D |
| Solar water heating | — | £4,000 – £7,000 | £162 | 33.9 yrs | +6.1 pts |
| Floor insulation | — | £5,000 – £10,000 | £209 | 35.9 yrs | +7.8 pts · reaches C |
| Solar photovoltaic panels | — | £8,000 – £10,000 | £193 | 46.6 yrs | +7.2 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 £1,097 a year — a 3.3% annual return on £33,250.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2026, states £2,218 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
No sale recorded for this address since 1995.
Mariman Drive: 32 sales since 1995 · £170,313 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Crumpsall Lane Primary School | Primary | 0.3 mi | — |
| Crab Lane Primary School | Primary | 0.6 mi | — |
| Pike Fold Primary School | Primary | 0.6 mi | — |
| The King David High School | Secondary | 0.5 mi | Progress 8 +0.50 · above average (2023/24) |
| Co-op Academy Manchester | Secondary | 0.8 mi | Progress 8 -0.02 · average (2023/24) |
| Our Lady's RC High School | Secondary | 1.2 mi | Progress 8 +0.33 · 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.
Mariman Drive
How this home sits against its street.