Upper Flat, 421 Northolt Road, Harrow, Harrow HA2 8JQ

Semi-Detached flat · Built 1930-1949 · 45 m² · Rented (Private) · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Solid wall insulation(optional, beyond D)£4,000 – £14,000£14850+ 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

£1,040
per year at grade D
£892
per year at grade D

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2020, states £655 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address since 1995.

Northolt Road: 753 sales since 1995 · £334,591 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
The Welldon Park AcademyPrimary0.2 mi
Petts Hill Primary SchoolPrimary0.5 mi
Heathland SchoolPrimary0.5 mi
Rooks Heath SchoolSecondary0.6 miProgress 8 +0.32 · above average (2023/24)
Islip Manor High SchoolSecondary0.9 miProgress 8 -0.24 · below average (2023/24)
Whitmore High SchoolSecondary1.0 miProgress 8 +0.75 · 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.

17.5
crimes a month
193
in the last 12 months
Shoplifting
most common · 26% of the total

Police.uk street-level data for LSOA E01002218, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Northolt Road

How this home sits against its street.

756
graded homes
74.7
average score
C
most common grade
-16.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.