| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Draughtproofing | — | £80 – £120 | £86 | 1.2 yrs | +5.9 pts · reaches E |
| Loft insulation | — | £100 – £350 | £48 | 4.7 yrs | +3.3 pts |
| Low energy lighting | — | £25 | £4 | 5.6 yrs | +0.3 pts |
| Floor insulation | — | £800 – £1,200 | £102 | 9.8 yrs | +7.0 pts |
| Change of heating system | — | £3,000 – £7,000 | £290 | 17.2 yrs | +19.9 pts · reaches C |
| Wind turbine | — | £1,500 – £4,000 | £84 | 32.7 yrs | +5.8 pts |
| Solar water heating | — | £4,000 – £6,000 | £79 | 50+ yrs | +5.4 pts · reaches B |
| Solar photovoltaic panels(optional, beyond B) | — | £9,000 – £14,000 | £94 | 50+ yrs | +6.5 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 £693 a year — a 4.9% annual return on £14,100.
Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.
Sold prices
Estimated today: £228,801 HPI-indexed estimate, not a valuation
Salem Grove: 47 sales since 1995 · £120,222 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Roundthorn Primary Academy | Primary | 0.3 mi | — |
| Oasis Academy Clarksfield | Primary | 0.3 mi | — |
| St Thomas' Leesfield CofE Primary School | Primary | 0.4 mi | — |
| Oasis Academy Leesbrook | Secondary | 0.2 mi | Progress 8 +0.12 · average (2023/24) |
| Waterhead Academy | Secondary | 1.0 mi | Progress 8 -0.72 · well below average (2023/24) |
| The Blue Coat CofE School | Secondary | 1.2 mi | Progress 8 +0.50 · 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.
Salem Grove
How this home sits against its street.