| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £15 – £30 | £136 | 0.2 yrs | +7.2 pts |
| Loft insulation | — | £100 – £350 | £76 | 3.0 yrs | +4.0 pts |
| High-retention storage heaters | — | £1,200 – £1,600 | £314 | 4.5 yrs | +16.6 pts · reaches E |
| Floor insulation | — | £800 – £1,200 | £159 | 6.3 yrs | +8.4 pts · reaches D |
| Cavity wall insulation | — | £500 – £1,500 | £119 | 8.4 yrs | +6.3 pts |
| Wind turbine | — | £1,500 – £4,000 | £132 | 20.8 yrs | +7.0 pts · reaches C |
| Solar water heating | — | £4,000 – £6,000 | £124 | 40.5 yrs | +6.6 pts |
| Solar photovoltaic panels | — | £9,000 – £14,000 | £147 | 50+ yrs | +7.8 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 £1,207 a year — a 5.3% annual return on £22,898.
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: £226,614 HPI-indexed estimate, not a valuation
Perth Close: 19 sales since 1995 · £220,833 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Cherry Tree Academy | Primary | 0.3 mi | — |
| Monkwick Infant and Nursery School | Primary | 0.5 mi | — |
| Monkwick Junior School | Primary | 0.5 mi | — |
| The Thomas Lord Audley School | Secondary | 0.5 mi | Progress 8 -0.13 · average (2023/24) |
| Paxman Academy | Secondary | 1.9 mi | Progress 8 -0.17 · average (2023/24) |
| Colchester Royal Grammar School | Secondary | 2.0 mi | Progress 8 +1.09 · well above 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 E01021640, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.
Perth Close
How this home sits against its street.