| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Party wall insulation | — | £300 – £600 | £78 | 5.8 yrs | +3.2 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £132 | 34.0 yrs | +5.4 pts · reaches B |
| Solar water heating(optional, beyond B) | — | £4,000 – £6,000 | £111 | 45.1 yrs | +4.5 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
£1,262
per year at grade C
£941
per year at grade B
The full plan saves £210 a year — a 4.2% annual return on £4,950.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2024, states £1,361 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
8 January 2025£475,000
16 February 2016£395,000
4 July 2011£315,000
Estimated today: £484,684 HPI-indexed estimate, not a valuation
Sierra Road: 135 sales since 1995 · £340,956 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Sierra Road
How this home sits against its street.
114
graded homes
80.8
average score
B
most common grade
-3.8
this home vs street