21a Clarendon Road, London SW19 2DX

Mid-Terrace maisonette · Built 1900-1929 · 107 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

CB for £9,250 · £9,250 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Solid wall insulation£7,500 – £11,000£16250+ yrs+3.0 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

£890
per year at grade C
£728
per year at grade B

The full plan saves £162 a year — a 1.8% annual return on £9,250.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2026, states £820 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

7 December 2020£470,000
19 December 2014£426,000
23 May 2012£265,000
16 December 2010£257,000
12 April 2006£237,000
27 September 2004£225,000
21 January 2002£155,000

Estimated today: £463,333 HPI-indexed estimate, not a valuation

Clarendon Road: 732 sales since 1995 · £2,242,925 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Singlegate Primary SchoolPrimary0.2 mi
Sellincourt Primary SchoolPrimary0.5 mi
All Saints' CofE Primary SchoolPrimary0.5 mi
Harris Academy WimbledonSecondary0.8 miProgress 8 +0.62 · well above average (2023/24)
Graveney SchoolSecondary1.0 miProgress 8 +0.74 · well above average (2023/24)
St Mark's Church of England AcademySecondary1.1 miProgress 8 +0.70 · 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.

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.

22.2
crimes a month
244
in the last 12 months
Shoplifting
most common · 30% of the total

Police.uk street-level data for LSOA E01034581, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Clarendon Road

How this home sits against its street.

543
graded homes
66.1
average score
C
most common grade
+12.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.