| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £154 | 6.5 yrs | +6.0 pts · reaches D |
| Low energy lighting | — | £50 | £7 | 7.4 yrs | +0.3 pts |
| Room-in-roof insulation | — | £1,500 – £2,700 | £212 | 9.9 yrs | +8.2 pts |
| Solar water heating | — | £4,000 – £6,000 | £119 | 41.9 yrs | +4.6 pts · reaches C |
| Solar photovoltaic panels | — | £5,000 – £8,000 | £142 | 45.7 yrs | +5.5 pts |
| Solid wall insulation | — | £4,000 – £14,000 | £166 | 50+ yrs | +6.4 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
The full plan saves £800 a year — a 3.4% annual return on £23,650.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £1,251 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £339,504 HPI-indexed estimate, not a valuation
High Road East: 116 sales since 1995 · £458,565 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Colneis Junior School | Primary | 0.4 mi | — |
| Kingsfleet Primary School | Primary | 0.4 mi | — |
| Fairfield Infant School | Primary | 0.5 mi | — |
| Felixstowe School | Secondary | 1.4 mi | Progress 8 -0.48 · below average (2023/24) |
| Harwich and Dovercourt High School | Secondary | 5.1 mi | Progress 8 -0.67 · well below average (2023/24) |
| Kesgrave High School | Secondary | 8.5 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.
High Road East
How this home sits against its street.