| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Low energy lighting | — | £25 | £4 | 7.1 yrs | +0.2 pts |
| Floor insulation | — | £800 – £1,200 | £80 | 12.5 yrs | +5.1 pts |
| Cavity wall insulation | — | £500 – £1,500 | £60 | 16.7 yrs | +3.8 pts · reaches C |
| Wind turbine | — | £1,500 – £4,000 | £66 | 41.4 yrs | +4.2 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £49 | 50+ yrs | +3.1 pts |
| Solar water heating | — | £4,000 – £6,000 | £62 | 50+ yrs | +3.9 pts · reaches B |
| Solar photovoltaic panels(optional, beyond B) | — | £9,000 – £14,000 | £74 | 50+ yrs | +4.7 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
£1,104
per year at grade D
£708
per year at grade B
The full plan saves £322 a year — a 2.6% annual return on £12,375.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £772 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
No sale recorded for this address since 1995.
Valence Avenue: 417 sales since 1995 · £342,171 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Valence Avenue
How this home sits against its street.
311
graded homes
65.7
average score
D
most common grade
-2.7
this home vs street