| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Loft insulation | — | £100 – £350 | £49 | 4.6 yrs | +2.5 pts · reaches D |
| Flue gas heat recovery | — | £400 – £900 | £101 | 6.4 yrs | +5.1 pts |
| Low energy lighting | — | £35 | £5 | 7.7 yrs | +0.2 pts |
| Floor insulation | — | £800 – £1,200 | £104 | 9.6 yrs | +5.2 pts |
| Heating controls | — | £350 – £450 | £38 | 10.6 yrs | +1.9 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £64 | 40.8 yrs | +3.2 pts · reaches C |
| Solar water heating(optional, beyond C) | — | £4,000 – £6,000 | £81 | 50+ yrs | +4.1 pts |
| Solar photovoltaic panels(optional, beyond C) | — | £5,000 – £8,000 | £96 | 50+ yrs | +4.8 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 £360 a year — a 7.3% annual return on £4,910.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £1,104 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £125,099 HPI-indexed estimate, not a valuation
Iris Avenue: 34 sales since 1995 · £123,000 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Kearsley West Primary School | Primary | 0.5 mi | — |
| St Stephen's CofE Primary School | Primary | 0.5 mi | — |
| North Walkden Primary School | Primary | 0.7 mi | — |
| Kearsley Academy | Secondary | 0.3 mi | Progress 8 +0.55 · well above average (2023/24) |
| The Lowry Academy | Secondary | 1.4 mi | Progress 8 -0.37 · below average (2023/24) |
| Co-op Academy Walkden | Secondary | 1.5 mi | Progress 8 -0.47 · 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.
Iris Avenue
How this home sits against its street.