9 Longfield Avenue, Wallington SM6 7AZ

Semi-Detached house · Built 1930-1949 · 94 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

D → B for £23,900 · £11,950 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Heating controls—£350 – £450£449.1 yrs+2.0 pts
Solar photovoltaic panels—£3,500 – £5,500£11240.1 yrs+5.1 pts
Floor insulation—£4,000 – £6,000£12141.2 yrs+5.5 pts · reaches C
Solar water heating—£4,000 – £6,000£9450+ yrs+4.3 pts
Solid wall insulation—£4,000 – £14,000£13150+ yrs+6.0 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

£1,501
per year at grade D
£998
per year at grade B

The full plan saves £503 a year — a 2.1% annual return on £23,900.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2022, states £890 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

15 September 2022£505,000
15 November 2002£182,500

Estimated today: £511,109 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.