| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Draughtproofing | — | £80 – £120 | £200 | 0.5 yrs | +6.9 pts · reaches E |
| Hot water cylinder insulation | — | £15 – £400 | £203 | 1.0 yrs | +7.0 pts |
| Heating controls | — | £350 – £450 | £86 | 4.6 yrs | +3.0 pts |
| Cavity wall insulation | — | £500 – £1,500 | £177 | 5.6 yrs | +6.1 pts · reaches D |
| Band A condensing boiler | — | £2,200 – £3,000 | £146 | 17.8 yrs | +5.0 pts |
| Solar water heating | — | £4,000 – £6,000 | £184 | 27.1 yrs | +6.4 pts · reaches C |
| Solar photovoltaic panels | — | £5,000 – £8,000 | £220 | 29.6 yrs | +7.6 pts |
| Double glazing | — | £3,300 – £6,500 | £86 | 50+ yrs | +3.0 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 £1,303 a year — a 6.3% annual return on £20,708.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £1,684 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £89,015 HPI-indexed estimate, not a valuation
Tynwald Street: 37 sales since 1995 · £73,658 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Oasis Academy Clarksfield | Primary | 0.1 mi | — |
| St Anne's RC Primary School, a Voluntary Academy | Primary | 0.1 mi | — |
| Greenacres Primary Academy | Primary | 0.2 mi | — |
| Oasis Academy Leesbrook | Secondary | 0.6 mi | Progress 8 +0.12 · average (2023/24) |
| The Blue Coat CofE School | Secondary | 0.8 mi | Progress 8 +0.50 · above average (2023/24) |
| Waterhead Academy | Secondary | 0.9 mi | Progress 8 -0.72 · well 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.
Tynwald Street
How this home sits against its street.