| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Low energy lighting | — | £20 | £3 | 6.9 yrs | +0.2 pts |
| Loft insulation | — | £100 – £350 | £31 | 7.2 yrs | +2.1 pts · reaches C |
| Heating controls | — | £350 – £450 | £24 | 16.7 yrs | +1.6 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £61 | 50+ yrs | +4.1 pts |
| Floor insulation | — | £4,000 – £6,000 | £66 | 50+ yrs | +4.5 pts |
| Solar water heating | — | £4,000 – £6,000 | £51 | 50+ yrs | +3.5 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
£1,178
per year at grade D
£942
per year at grade B
The full plan saves £236 a year — a 1.6% annual return on £15,145.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2021, states £737 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
7 May 2021£147,000
Estimated today: £179,120 HPI-indexed estimate, not a valuation
Firtrees: 44 sales since 1995 · £148,150 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Firtrees
How this home sits against its street.
19
graded homes
66.1
average score
D
most common grade
+1.9
this home vs street