| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Low energy lighting | — | £30 | £4 | 7.5 yrs | +0.1 pts |
| Heating controls | — | £350 – £450 | £33 | 12.0 yrs | +0.9 pts |
| Band A condensing boiler | — | £1,500 – £3,500 | £56 | 44.3 yrs | +1.6 pts |
| Solar water heating | — | £4,000 – £6,000 | £71 | 50+ yrs | +2.0 pts |
| Solar photovoltaic panels | — | £11,000 – £20,000 | £85 | 50+ yrs | +2.4 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
£1,360
per year at grade D
£1,110
per year at grade C
The full plan saves £250 a year — a 1.1% annual return on £23,430.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £818 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
4 July 2017£375,000
14 March 2012£235,000
31 August 2001£160,000
Estimated today: £439,286 HPI-indexed estimate, not a valuation
Herneville Gardens: 29 sales since 1995 · £336,857 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Herneville Gardens
How this home sits against its street.
16
graded homes
60.4
average score
D
most common grade
+1.6
this home vs street