| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £1,200 – £200 | £233 | 3.0 yrs | +7.7 pts |
| Loft insulation | — | £350 | £111 | 3.2 yrs | +3.7 pts |
| Low energy lighting | — | £35 | £10 | 3.4 yrs | +0.3 pts |
| Flat roof insulation | — | £1,500 – £500 | £177 | 5.7 yrs | +5.8 pts · reaches D |
| Cavity wall insulation | — | £1,500 – £500 | £174 | 5.7 yrs | +5.7 pts |
| Band A condensing boiler | — | £3,000 – £0 | £143 | 10.5 yrs | +4.7 pts |
| Solar photovoltaic panels | — | £5,500 – £500 | £216 | 13.9 yrs | +7.1 pts · reaches C |
| Solar water heating | — | £6,000 – £0 | £181 | 16.6 yrs | +6.0 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
£2,382
per year at grade E
£1,137
per year at grade B
The full plan saves £1,245 a year — a 11.8% annual return on £10,585.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2019, states £1,510 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
18 September 2020£70,000
Estimated today: £92,857 HPI-indexed estimate, not a valuation
Grenfell Avenue: 129 sales since 1995 · £83,168 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Grenfell Avenue
How this home sits against its street.
53
graded homes
63.7
average score
D
most common grade
-23.7
this home vs street