| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| High-retention storage heaters | — | £1,200 – £1,800 | £453 | 3.3 yrs | +16.0 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
The full plan saves £453 a year — a 30.2% annual return on £1,500.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £1,030 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £472,260 HPI-indexed estimate, not a valuation
Drayton Park: 1,000 sales since 1995 · £511,161 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Pakeman Primary School | Primary | 0.3 mi | — |
| St John's Highbury Vale CofE Primary School | Primary | 0.4 mi | — |
| Gillespie Primary School | Primary | 0.4 mi | — |
| Highbury Fields School | Secondary | 0.4 mi | Progress 8 +0.43 · above average (2023/24) |
| City of London Academy Highbury Grove | Secondary | 0.7 mi | Progress 8 +0.09 · average (2023/24) |
| Arts and Media School Islington | Secondary | 0.8 mi | Progress 8 +0.17 · average (2023/24) |
Schools from the DfE register, performance from the KS4 performance tables. Progress 8 is a GCSE measure, so primaries have none. Distance is straight-line from the postcode, not a catchment: admission is decided by the school, not by us.
Drayton Park
How this home sits against its street.