| Measure | Grant | Net cost | Saving / yr | Payback | Grade effect |
|---|---|---|---|---|---|
| Draughtproofing | — | £80 – £120 | £308 | 0.3 yrs | +2.9 pts · reaches D |
| Floor insulation | — | £800 – £1,200 | £365 | 2.7 yrs | +3.5 pts |
| Room-in-roof insulation | — | £1,500 – £2,700 | £504 | 4.2 yrs | +4.8 pts |
| Flat roof insulation | — | £850 – £1,500 | £277 | 4.2 yrs | +2.6 pts |
| Solar photovoltaic panels | — | £3,500 – £5,500 | £338 | 13.3 yrs | +3.2 pts · reaches C |
| Solid wall insulation(optional, beyond C) | — | £4,000 – £14,000 | £395 | 22.8 yrs | +3.7 pts |
| Double glazing(optional, beyond C) | — | £3,300 – £6,500 | £132 | 37.1 yrs | +1.3 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 £1,791 a year — a 20.2% annual return on £8,875.
Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £3,404 a year at the prices assumed then. Modelled costs, not a bill.
Sold prices
Estimated today: £693,320 HPI-indexed estimate, not a valuation
Mapperley Road: 182 sales since 1995 · £192,623 average over 10 years
Schools nearby
The schools’ own performance — Progress 8 shows value added, not just raw results.
| School | Phase | Distance | Progress |
|---|---|---|---|
| St Augustine's Catholic Primary and Nursery School, A Voluntary Academy | Primary | under 0.1 mi | — |
| Sycamore Academy | Primary | 0.5 mi | — |
| Carrington Primary and Nursery School | Primary | 0.5 mi | — |
| Bluecoat Trent Academy | Secondary | 0.4 mi | Not in the KS4 performance tables |
| The Wells Academy | Secondary | 0.6 mi | Progress 8 -0.95 · well below average (2023/24) |
| Djanogly City Academy | Secondary | 0.9 mi | Progress 8 -0.13 · 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.
Mapperley Road
How this home sits against its street.