| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £15 – £400 | £182 | 1.1 yrs | +5.2 pts |
| Cavity wall insulation | — | £100 – £300 | £159 | 1.3 yrs | +4.5 pts |
| Low energy lighting | — | £18 | £9 | 1.9 yrs | +0.3 pts |
| Loft insulation | — | £100 – £300 | £102 | 2.0 yrs | +2.9 pts · reaches D |
| Heating controls | — | £350 – £450 | £78 | 5.2 yrs | +2.2 pts |
| Band A condensing boiler | — | £1,500 – £3,500 | £131 | 19.1 yrs | +3.7 pts |
| Solar water heating | — | £4,000 – £6,000 | £165 | 30.2 yrs | +4.7 pts |
| Solar photovoltaic panels | — | £11,000 – £20,000 | £197 | 50+ yrs | +5.6 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
£1,982
per year at grade E
£958
per year at grade C
The full plan saves £1,024 a year — a 4.3% annual return on £24,026.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £1,208 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
19 March 2021£112,500
9 November 2011£52,500
Estimated today: £154,001 HPI-indexed estimate, not a valuation
Schools nearby
The DfE register covers England. Welsh schools are held in a separate Welsh Government register, which we have not ingested yet.