| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Loft insulation | — | £225typical | £67 | 3.4 yrs | +1.9 pts |
| Heating controls | — | £400typical | £51 | 7.8 yrs | +1.5 pts |
| Low energy lighting | — | £30 – £75typical | £6 | 8.5 yrs | +0.2 pts |
| Band A condensing boiler | — | £2,600typical | £87 | 30.0 yrs | +2.5 pts |
| Solar water heating | — | £5,000typical | £109 | 45.7 yrs | +3.2 pts |
| Solar photovoltaic panels | — | £4,500 – £9,000typical | £130 | 50+ yrs | +3.8 pts · reaches C |
Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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 £451 a year — a 3.0% annual return on £15,028.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2009, states £1,027 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £394,887 HPI-indexed estimate, not a valuation
Griffiths Close: 157 sales since 1995 · £265,846 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Grange Junior School | Primary | 0.2 mi | — |
| Colebrook Junior School | Primary | 0.5 mi | — |
| Colebrook Infant Academy | Primary | 0.5 mi | — |
| Kingsdown School | Secondary | 1.2 mi | Progress 8 -0.36 · below average (2023/24) |
| St Joseph's Catholic College | Secondary | 1.2 mi | Progress 8 +0.37 · above average (2023/24) |
| The Dorcan Academy | Secondary | 1.3 mi | Progress 8 -0.39 · below 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.
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 E01015554, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.
Griffiths Close
How this home sits against its street.