Flat 9, Impact Court, Stembridge Road, London SE20 7UP

Semi-Detached flat · Built 1967-1975 · 54 m² · Rented (Private) · Electric storage heaters

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
High-retention storage heaters(optional, beyond C)£1,200 – £1,800£1808.3 yrs+8.0 pts
Cavity wall insulation(optional, beyond C)£500 – £1,500£6814.7 yrs+3.0 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

£727
per year at grade C
£479
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2023, states £748 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

24 February 2017£260,000
3 January 2014£150,000
17 December 2010£120,000
2 March 2001£53,000

Estimated today: £271,118 HPI-indexed estimate, not a valuation

Stembridge Road: 225 sales since 1995 · £434,095 average over 10 years

Schools nearby

The schools’ own performance — Progress 8 shows value added, not just raw results.

SchoolPhaseDistanceProgress
Stewart Fleming Primary SchoolPrimary0.3 mi
St Anthony's Catholic Primary SchoolPrimary0.4 mi
James Dixon Primary SchoolPrimary0.4 mi
Harris Academy South NorwoodSecondary0.6 miProgress 8 +0.45 · above average (2023/24)
Harris City Academy Crystal PalaceSecondary0.7 miProgress 8 +0.24 · above average (2023/24)
Oasis Academy ArenaSecondary0.9 miProgress 8 -0.50 · 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.

Area context

Police-recorded crime for the wider neighbourhood, not this address. We grade homes, never neighbourhoods — so this is reported as a count, not a rating.

5.8
crimes a month
52
in the last 12 months
Violence and sexual offences
most common · 27% of the total

Police.uk street-level data for LSOA E01000705, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Stembridge Road

How this home sits against its street.

93
graded homes
58.1
average score
D
most common grade
+10.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.