| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £77 | 13.1 yrs | +3.8 pts |
| Cavity wall insulation | — | £500 – £1,500 | £57 | 17.5 yrs | +2.8 pts · reaches C |
| Solar photovoltaic panels(optional, beyond C) | — | £3,500 – £5,500 | £71 | 50+ yrs | +3.5 pts |
| Solar water heating(optional, beyond C) | — | £4,000 – £6,000 | £59 | 50+ yrs | +2.9 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
£1,609
per year at grade D
£1,345
per year at grade C
The full plan saves £134 a year — a 6.7% annual return on £2,000.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £966 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
12 May 2022£520,000
31 August 2012£279,950
29 April 1999£94,000
Estimated today: £521,108 HPI-indexed estimate, not a valuation
Clarendon Road: 219 sales since 1995 · £496,508 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Clarendon Road
How this home sits against its street.
104
graded homes
63.5
average score
D
most common grade
+1.5
this home vs street