21 Lanercost Road, London SW2 3DP

Semi-Detached house · Built 1900-1929 · 174 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

EC for £28,495 · £14,248 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Draughtproofing£80 – £120£2860.4 yrs+5.9 pts
Loft insulation£100 – £350£1611.4 yrs+3.3 pts
Low energy lighting£70£154.7 yrs+0.3 pts
Band A condensing boiler£2,200 – £3,000£20812.5 yrs+4.3 pts
Solar water heating£4,000 – £6,000£26319.0 yrs+5.5 pts · reaches D
Solid wall insulation£4,000 – £14,000£36624.6 yrs+7.6 pts
Solar photovoltaic panels£9,000 – £14,000£31436.7 yrs+6.5 pts · reaches C
Double glazing(optional, beyond C)£3,300 – £6,500£12340.0 yrs+2.5 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

£3,388
per year at grade E
£1,653
per year at grade C

The full plan saves £1,612 a year — a 5.7% annual return on £28,495.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2013, states £2,211 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 June 2014£1,175,000
25 July 2003£421,000

Estimated today: £1,553,470 HPI-indexed estimate, not a valuation

Lanercost Road: 126 sales since 1995 · £996,076 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Fenstanton Primary SchoolPrimary0.2 mi
Streatham Wells PrimaryPrimary0.3 mi
Hitherfield Primary SchoolPrimary0.4 mi
City Heights E-ACT AcademySecondary0.2 miProgress 8 -0.37 · below average (2023/24)
The Elmgreen SchoolSecondary0.3 miProgress 8 -0.37 · below average (2023/24)
Bishop Thomas Grant Catholic Secondary SchoolSecondary1.1 miProgress 8 +0.74 · 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.

23.4
crimes a month
257
in the last 12 months
Shoplifting
most common · 38% of the total

Police.uk street-level data for LSOA E01003133, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Lanercost Road

How this home sits against its street.

77
graded homes
58.4
average score
D
most common grade
-17.4
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.