| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Cavity wall insulation | — | £500 – £1,500 | £157 | 6.4 yrs | +6.0 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £129 | 20.1 yrs | +5.0 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
£1,068
per year at grade D
£782
per year at grade C
The full plan saves £286 a year — a 7.9% annual return on £3,600.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £717 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
31 March 2023£110,000
18 August 2014£75,000
28 March 2007£82,950
26 July 2002£48,000
27 March 1997£25,500
Estimated today: £108,333 HPI-indexed estimate, not a valuation
Sewall Highway: 740 sales since 1995 · £139,226 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Sewall Highway
How this home sits against its street.
375
graded homes
63
average score
D
most common grade
-4.0
this home vs street