| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £20 – £40 | £239 | 0.1 yrs | +6.8 pts |
| High-retention storage heaters | — | £1,600 – £3,200 | £551 | 4.4 yrs | +15.7 pts · reaches E |
| Flat roof insulation | — | £900 – £1,200 | £212 | 4.9 yrs | +6.1 pts · reaches D |
| Floor insulation | — | £5,000 – £10,000 | £280 | 26.8 yrs | +8.0 pts |
| Solar photovoltaic panels | — | £8,000 – £10,000 | £259 | 34.7 yrs | +7.4 pts · reaches C |
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 £1,542 a year — a 7.7% annual return on £19,980.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2026, states £3,184 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £241,640 HPI-indexed estimate, not a valuation
Denbigh Drive: 53 sales since 1995 · £225,473 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Crompton Primary School | Primary | 0.3 mi | — |
| St Mary's CofE Primary School High Crompton | Primary | 0.5 mi | — |
| St Joseph's RC Junior, Infant and Nursery School, A Voluntary Academy | Primary | 0.7 mi | — |
| The Crompton House Church of England Academy | Secondary | 0.3 mi | Progress 8 -0.02 · average (2023/24) |
| E-ACT Royton and Crompton Academy | Secondary | 0.7 mi | Progress 8 -0.53 · well below average (2023/24) |
| E-ACT the Oldham Academy North | Secondary | 1.3 mi | Progress 8 +0.38 · 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.
Denbigh Drive
How this home sits against its street.