| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Hot water cylinder insulation | — | £23 – £300typical | £39 | 4.2 yrs | +1.7 pts |
| Low energy lighting | — | £15 – £40typical | £2 | 13.9 yrs | +0.1 pts |
| Heating controls | — | £400typical | £16 | 24.3 yrs | +0.7 pts |
| Wind turbine | — | £2,750typical | £37 | 50+ yrs | +1.7 pts |
| Band A condensing boiler | — | £2,600typical | £28 | 50+ yrs | +1.3 pts · reaches C |
| Solar water heating(optional, beyond C) | — | £5,000typical | £35 | 50+ yrs | +1.6 pts |
| Solar photovoltaic panels(optional, beyond C) | — | £4,500 – £9,000typical | £42 | 50+ yrs | +1.9 pts |
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 £122 a year — a 2.1% annual return on £5,939.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £589 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £112,231 HPI-indexed estimate, not a valuation
Halvard Court: 38 sales since 1995 · £102,895 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Chesham Primary Academy | Primary | 0.2 mi | — |
| Springside Primary School | Primary | 0.5 mi | — |
| St John with St Mark CofE Primary School | Primary | 0.5 mi | — |
| Hazel Wood High School | Secondary | 1.3 mi | Progress 8 +0.02 · average (2023/24) |
| The Elton High School | Secondary | 1.6 mi | Progress 8 -0.24 · below average (2023/24) |
| St Gabriel's RC High School, a Voluntary Academy | Secondary | 1.6 mi | Progress 8 -0.18 · 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.
Halvard Court
How this home sits against its street.