| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £275 | 3.6 yrs | +5.4 pts |
| Heating controls | — | £350 – £450 | £100 | 4.0 yrs | +2.0 pts · reaches D |
| Room-in-roof insulation | — | £1,500 – £2,700 | £379 | 5.5 yrs | +7.5 pts |
| Flat roof insulation | — | £850 – £1,500 | £208 | 5.6 yrs | +4.1 pts |
| Low energy lighting | — | £100 | £12 | 8.3 yrs | +0.2 pts |
| Solar photovoltaic panels | — | £5,000 – £8,000 | £254 | 25.6 yrs | +5.0 pts · reaches C |
| Solid wall insulation(optional, beyond C) | — | £4,000 – £14,000 | £297 | 30.3 yrs | +5.8 pts |
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 £1,228 a year — a 10.9% annual return on £11,275.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2016, states £2,456 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £632,846 HPI-indexed estimate, not a valuation
Halls Barn: 2 sales since 1995
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| Greenfield Primary School | Primary | 0.2 mi | — |
| Greenfield St Mary's CofE School | Primary | 0.7 mi | — |
| Friezland Primary School | Primary | 0.9 mi | — |
| Saddleworth School | Secondary | 1.5 mi | Not in the KS4 performance tables |
| Mossley Hollins High School | Secondary | 1.7 mi | Not in the KS4 performance tables |
| Waterhead Academy | Secondary | 2.6 mi | Progress 8 -0.72 · well 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.