Flat 4, 21 Collingham Road, London SW5 0NU

Mid-Terrace flat · Built before 1900 · 223 m² · Electric underfloor heating

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This certificate lists these measures but records the same score with and without them, so there is no saving or rating gain to attribute to any one of them. That usually means the assessment was incomplete — here the assessor recorded no heating system at all. The costs below are real; a fresh assessment would be the way to find the gain.

MeasureGrantNet costSaving / yrPaybackGrade effect
Change of heating system£3,000 – £7,000
Solid wall insulation£5,500 – £14,500

Grants verified 20 August 2026. Costs are the register’s indicative ranges.

Running costs

£7,058
per year at grade F

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £3,233 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

17 August 2022£4,030,000
23 November 2012£3,700,000
26 August 2005£2,430,000

Estimated today: £3,061,635 HPI-indexed estimate, not a valuation

Collingham Road: 199 sales since 1995 · £1,270,368 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Bousfield Primary SchoolPrimary0.2 mi
Our Lady of Victories RC Primary SchoolPrimary0.4 mi
St Barnabas and St Philip's CofE Primary SchoolPrimary0.5 mi
The London Oratory SchoolSecondary0.6 miProgress 8 +0.62 · well above average (2023/24)
Holland Park SchoolSecondary1.0 miProgress 8 +0.04 · average (2023/24)
Chelsea AcademySecondary1.1 miProgress 8 +0.23 · 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.

6.5
crimes a month
65
in the last 12 months
Anti-social behaviour
most common · 45% of the total

Police.uk street-level data for LSOA E01002834, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Collingham Road

How this home sits against its street.

238
graded homes
67.3
average score
C
most common grade
-37.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.