| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £15 – £400 | £118 | 1.8 yrs | +6.4 pts · reaches E |
| High-performance doors | — | £1,000 – £0 | £110 | 4.5 yrs | +6.0 pts |
| Low energy lighting | — | £40 | £6 | 6.6 yrs | +0.3 pts |
| Floor insulation | — | £800 – £1,200 | £138 | 7.3 yrs | +7.5 pts · reaches D |
| Wind turbine | — | £1,500 – £4,000 | £114 | 24.1 yrs | +6.2 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £85 | 30.7 yrs | +4.6 pts · reaches C |
| Solar water heating | — | £4,000 – £6,000 | £107 | 46.7 yrs | +5.8 pts |
| Solid wall insulation | — | £4,000 – £14,000 | £149 | 50+ yrs | +8.1 pts · reaches B |
| Solar photovoltaic panels(optional, beyond B) | — | £9,000 – £14,000 | £128 | 50+ yrs | +7.0 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 £827 a year — a 3.9% annual return on £21,098.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £1,407 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
No sale recorded for this address since 1995.
High Knowles: 4 sales since 1995
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Agnes CofE Primary School | Primary | 0.2 mi | — |
| St Hugh's CofE Primary School | Primary | 0.7 mi | — |
| Springhead Infant and Nursery School | Primary | 0.7 mi | — |
| Oasis Academy Leesbrook | Secondary | 1.0 mi | Progress 8 +0.12 · average (2023/24) |
| Waterhead Academy | Secondary | 1.4 mi | Progress 8 -0.72 · well below average (2023/24) |
| Mossley Hollins High School | Secondary | 1.5 mi | Not in the KS4 performance tables |
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.