| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Room-in-roof insulation | — | £1,500 – £2,700 | £254 | 8.3 yrs | +7.7 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £170 | 26.4 yrs | +5.2 pts · reaches C |
| Solid wall insulation(optional, beyond C) | — | £4,000 – £14,000 | £199 | 45.3 yrs | +6.1 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
£2,157
per year at grade D
£1,534
per year at grade C
The full plan saves £424 a year — a 6.4% annual return on £6,600.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £1,283 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
13 October 2022£1,450,000
Estimated today: £1,352,232 HPI-indexed estimate, not a valuation
Donaldson Road: 289 sales since 1995 · £621,520 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Donaldson Road
How this home sits against its street.
142
graded homes
63.2
average score
D
most common grade
-4.2
this home vs street