| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £126 | 7.9 yrs | +6.1 pts · reaches D |
| Low energy lighting | — | £45 | £6 | 8.2 yrs | +0.3 pts |
| Flat roof insulation | — | £850 – £1,500 | £96 | 12.3 yrs | +4.6 pts |
| Wind turbine | — | £1,500 – £4,000 | £104 | 26.4 yrs | +5.0 pts |
| Band A condensing boiler | — | £2,200 – £3,000 | £77 | 33.6 yrs | +3.7 pts · reaches C |
| Solar water heating | — | £4,000 – £6,000 | £98 | 50+ yrs | +4.7 pts |
| Solar photovoltaic panels | — | £9,000 – £14,000 | £117 | 50+ yrs | +5.6 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 £623 a year — a 2.6% annual return on £24,070.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2012, states £1,257 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
No sale recorded for this address since 1995.
Broad Lane: 1 sales since 1995
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| The Fourfields Church of England School, Sutterton | Primary | 0.9 mi | — |
| Gosberton Academy | Primary | 2.8 mi | — |
| Kirton Primary School | Primary | 3.2 mi | — |
| Thomas Middlecott Academy | Secondary | 2.8 mi | Progress 8 -0.78 · well below average (2023/24) |
| Cowley Academy | Secondary | 4.1 mi | Progress 8 -0.12 · average (2023/24) |
| The Boston Grammar School | Secondary | 6.6 mi | Progress 8 -0.43 · 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.