41b-41c, Allfarthing Lane, London SW18 2AP

End-Terrace house · Built before 1900 · 107 m² · Boiler and radiators, mains gas

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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
Solar water heating£4,000 – £6,000
Solar photovoltaic panels£11,000 – £20,000
Solid wall insulation£5,500 – £14,500

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

Running costs

£1,741
per year at grade D

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £1,069 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 December 2016£780,000
14 February 2007£435,500

Estimated today: £833,555 HPI-indexed estimate, not a valuation

Allfarthing Lane: 325 sales since 1995 · £656,008 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Swaffield SchoolPrimaryunder 0.1 mi
Allfarthing Primary SchoolPrimary0.1 mi
Anglo Portuguese School of LondonPrimary0.4 mi
Southfields AcademySecondary0.7 miProgress 8 +0.48 · above average (2023/24)
Ark Bolingbroke AcademySecondary0.8 miProgress 8 +1.04 · well above average (2023/24)
Ashcroft Technology AcademySecondary1.0 miProgress 8 +1.34 · 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.

6.8
crimes a month
61
in the last 12 months
Anti-social behaviour
most common · 31% of the total

Police.uk street-level data for LSOA E01004620, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Allfarthing Lane

How this home sits against its street.

178
graded homes
65.6
average score
D
most common grade
-8.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.