| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £262 | 3.8 yrs | +6.5 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £242 | 18.6 yrs | +6.0 pts · reaches C |
| Solid wall insulation | — | £4,000 – £14,000 | £283 | 31.8 yrs | +7.1 pts |
| Double glazing | — | £3,300 – £6,500 | £95 | 50+ yrs | +2.4 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
£2,194
per year at grade D
£1,313
per year at grade B
The full plan saves £881 a year — a 4.5% annual return on £19,400.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2020, states £1,387 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
24 March 2021£280,000
2 September 2010£142,500
Estimated today: £355,154 HPI-indexed estimate, not a valuation
Watson Avenue: 35 sales since 1995 · £266,707 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Watson Avenue
How this home sits against its street.
22
graded homes
53.5
average score
D
most common grade
+7.5
this home vs street