121 Blanmerle Road, London SE9 2DY

End-Terrace maisonette · Built 1900-1929 · 61 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation(optional, beyond C)£800 – £6,000£12726.8 yrs+3.8 pts
Solid wall insulation(optional, beyond C)£4,000 – £14,000£13750+ yrs+4.2 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

£920
per year at grade C
£656
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2024, states £961 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

19 December 2025£343,500
28 February 2019£288,000
26 November 2010£168,750
7 July 2006£148,000
20 April 2000£82,000
23 August 1999£67,000

Estimated today: £347,436 HPI-indexed estimate, not a valuation

Blanmerle Road: 272 sales since 1995 · £397,836 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Wyborne Primary SchoolPrimary0.2 mi
Greenacres Primary School and Language Impairment UnitPrimary0.5 mi
Dulverton Primary SchoolPrimary0.7 mi
St Thomas More Catholic Comprehensive SchoolSecondary0.6 miProgress 8 +0.74 · well above average (2023/24)
Leigh Stationers' AcademySecondary1.1 miProgress 8 -0.33 · below average (2023/24)
Eltham Hill SchoolSecondary1.2 miProgress 8 +0.25 · 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.

24
crimes a month
264
in the last 12 months
Shoplifting
most common · 58% of the total

Police.uk street-level data for LSOA E01001617, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Blanmerle Road

How this home sits against its street.

98
graded homes
57.1
average score
D
most common grade
+11.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.