| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Low energy lighting | — | £30 | £7 | 4.4 yrs | +0.3 pts |
| Floor insulation | — | £800 – £1,200 | £156 | 6.4 yrs | +6.8 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £145 | 31.1 yrs | +6.3 pts · reaches C |
| Solar water heating | — | £4,000 – £6,000 | £121 | 41.2 yrs | +5.3 pts |
| Solid wall insulation | — | £4,000 – £14,000 | £169 | 50+ yrs | +7.3 pts · reaches B |
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
£1,520
per year at grade D
£922
per year at grade B
The full plan saves £598 a year — a 3.1% annual return on £19,530.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2021, states £932 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
7 January 2022£255,000
11 January 2013£168,000
31 October 2011£140,000
Estimated today: £288,066 HPI-indexed estimate, not a valuation
Annandale Avenue: 28 sales since 1995 · £252,389 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Annandale Avenue
How this home sits against its street.
12
graded homes
53.9
average score
D
most common grade
+6.1
this home vs street