| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Room-in-roof insulation | — | £1,500 – £2,700 | £524 | 4.0 yrs | +10.4 pts |
| Floor insulation | — | £4,000 – £6,000 | £380 | 13.2 yrs | +7.6 pts · reaches D |
| Solar water heating | — | £4,000 – £6,000 | £295 | 17.0 yrs | +5.9 pts |
| Solar photovoltaic panels | — | £5,000 – £8,000 | £352 | 18.5 yrs | +7.0 pts · reaches C |
| Solid wall insulation(optional, beyond C) | — | £4,000 – £14,000 | £411 | 21.9 yrs | +8.2 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
£3,319
per year at grade E
£1,358
per year at grade C
The full plan saves £1,550 a year — a 8.3% annual return on £18,600.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £2,338 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
9 March 2018£620,000
Estimated today: £789,676 HPI-indexed estimate, not a valuation
Sparrow Hill Way: 59 sales since 1995 · £596,249 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Sparrow Hill Way
How this home sits against its street.
35
graded homes
55.3
average score
D
most common grade
-14.3
this home vs street