17 Westminster Avenue, Thornton Heath CR7 8BS

Semi-Detached house · Built 1930-1949 · 110 m² · Rented (Private) · Boiler and radiators, mains gas

Upgrade Plan

DC for £8,075 · £8,075 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200£1138.9 yrs+3.5 pts
Heating controls£350 – £450£419.7 yrs+1.3 pts
Cavity wall insulation£500 – £1,500£8411.9 yrs+2.6 pts
Flat roof insulation£850 – £1,500£8613.7 yrs+2.7 pts
Solar photovoltaic panels£3,500 – £5,500£10443.1 yrs+3.3 pts · reaches C
Solar water heating(optional, beyond C)£4,000 – £6,000£8850+ yrs+2.7 pts
Solid wall insulation(optional, beyond C)£4,000 – £14,000£12250+ yrs+3.8 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

£2,160
per year at grade D
£1,522
per year at grade C

The full plan saves £428 a year — a 5.3% annual return on £8,075.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £2,659 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

12 September 2023£360,325
26 November 1998£90,000

Estimated today: £352,810 HPI-indexed estimate, not a valuation

Schools nearby

No school in the register within reach of this postcode.

Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.