| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Floor insulation | — | £800 – £1,200 | £433 | 2.3 yrs | +5.1 pts |
| Cavity wall insulation | — | £500 – £1,500 | £324 | 3.1 yrs | +3.8 pts |
| Room-in-roof insulation | — | £1,500 – £2,700 | £598 | 3.5 yrs | +7.0 pts · reaches D |
| Low energy lighting(optional, beyond D) | — | £105 | £19 | 5.5 yrs | +0.2 pts |
| Solar photovoltaic panels(optional, beyond D) | — | £5,000 – £8,000 | £401 | 16.2 yrs | +4.7 pts |
| Solid wall insulation(optional, beyond D) | — | £4,000 – £14,000 | £468 | 19.2 yrs | +5.5 pts |
| Double glazing(optional, beyond D) | — | £3,300 – £6,500 | £157 | 31.3 yrs | +1.8 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 £1,354 a year — a 33.0% annual return on £4,100.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2017, states £3,820 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £841,719 HPI-indexed estimate, not a valuation
Errwood Road: 168 sales since 1995 · £306,190 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Mary's RC Primary School, Manchester, A Voluntary Academy | Primary | under 0.1 mi | — |
| Alma Park Primary School | Primary | 0.1 mi | — |
| Cringle Brook Primary School | Primary | 0.3 mi | — |
| Levenshulme High School | Secondary | 0.2 mi | Progress 8 +0.91 · well above average (2023/24) |
| Manchester Enterprise Academy Central | Secondary | 0.6 mi | Progress 8 +0.27 · above average (2023/24) |
| Burnage Academy for Boys | Secondary | 0.9 mi | Progress 8 +0.85 · 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.
Errwood Road
How this home sits against its street.