3b First Avenue, London NW4 2RL

Semi-Detached maisonette · Built 1900-1929 · 51 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

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MeasureGrantNet costSaving / yrPaybackGrade effect
Solid wall insulation(optional, beyond C)£7,500 – £11,000£17850+ yrs+6.0 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

£852
per year at grade C
£674
per year at grade C

Energy costs as modelled on the certificate, not a bill.

Sold prices

5 December 2003£250,000

Estimated today: £468,560 HPI-indexed estimate, not a valuation

First Avenue: 432 sales since 1995 · £904,866 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Saracens Bell LanePrimary0.2 mi
Independent Jewish Day SchoolPrimary0.3 mi
St Mary's and St John's CofE SchoolAll-through0.4 mi
Hendon SchoolSecondary0.2 miProgress 8 -0.13 · average (2023/24)
Hasmonean High School for BoysSecondary0.5 miProgress 8 +0.70 · well above average (2023/24)
ClarionSecondary1.1 miProgress 8 +0.44 · 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.

36
crimes a month
396
in the last 12 months
Shoplifting
most common · 33% of the total

Police.uk street-level data for LSOA E01000243, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

First Avenue

How this home sits against its street.

298
graded homes
63.7
average score
D
most common grade
+5.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.