| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £200 – £400 | £43 | 6.9 yrs | +4.3 pts |
| Low energy lighting | — | £25 | £2 | 11.3 yrs | +0.2 pts |
| High-performance doors | — | £1,000 – £0 | £40 | 12.4 yrs | +4.0 pts |
| Floor insulation | — | £800 – £1,200 | £51 | 19.8 yrs | +5.0 pts · reaches C |
| Flat roof insulation | — | £850 – £1,500 | £38 | 30.6 yrs | +3.8 pts |
| Solar water heating | — | £4,000 – £6,000 | £39 | 50+ yrs | +3.9 pts |
| Solar photovoltaic panels | — | £5,000 – £8,000 | £47 | 50+ yrs | +4.7 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 £261 a year — a 1.8% annual return on £14,500.
Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.
Sold prices
Estimated today: £477,619 HPI-indexed estimate, not a valuation
Elmtree Cottages: 3 sales since 1995
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Woodchurch Church of England Primary School | Primary | 3.0 mi | — |
| Brookland Church of England Primary School | Primary | 3.5 mi | — |
| Hamstreet Primary Academy | Primary | 3.6 mi | — |
| Homewood School and Sixth Form Centre | Secondary | 4.8 mi | Progress 8 -0.35 · below average (2023/24) |
| Rye College | Secondary | 6.3 mi | Progress 8 -0.85 · well below average (2023/24) |
| Chilmington Green School | Secondary | 6.6 mi | Not in the KS4 performance tables |
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.
Area context
Police-recorded crime for the wider neighbourhood, not this address. We grade homes, never neighbourhoods — so this is reported as a count, not a rating.
Police.uk street-level data for LSOA E01023997, to 2026-05. An LSOA holds about 1,500 people, so this covers far more than one street.