| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| High-retention storage heaters | — | £1,200 – £1,800 | £455 | 3.3 yrs | +14.0 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
The full plan saves £455 a year — a 30.3% annual return on £1,500.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2024, states £1,031 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £692,398 HPI-indexed estimate, not a valuation
Clapham Common South Side: 536 sales since 1995 · £738,239 average over 10 years
Schools nearby
No school in the register within reach of this postcode.
Clapham Common South Side
How this home sits against its street.