4 Lynn Close, Harrow HA3 5LP

Semi-Detached flat · Built 1930-1949 · 43 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DC for £1,025 · £1,025 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£25£46.9 yrs+0.1 pts
Floor insulation£800 – £1,200£8312.0 yrs+3.3 pts · reaches C
Solid wall insulation(optional, beyond C)£4,000 – £14,000£9050+ yrs+3.6 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

£758
per year at grade D
£581
per year at grade C

The full plan saves £87 a year — a 8.5% annual return on £1,025.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2018, states £485 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

17 October 2019£218,000
8 August 2008£161,000
12 April 2000£77,000

Estimated today: £225,976 HPI-indexed estimate, not a valuation

Lynn Close: 16 sales since 1995 · £200,250 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Whitefriars SchoolAll-through0.2 miProgress 8 -0.10 · average (2023/24)
Pinner Park Primary SchoolPrimary0.6 mi
Cedars Manor SchoolPrimary0.6 mi
Salvatorian Roman Catholic CollegeSecondary0.3 miProgress 8 +0.45 · above average (2023/24)
The Sacred Heart Language CollegeSecondary0.4 miProgress 8 +0.56 · well above average (2023/24)
Hatch End High SchoolSecondary0.8 miProgress 8 -0.03 · 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.

9.3
crimes a month
93
in the last 12 months
Anti-social behaviour
most common · 29% of the total

Police.uk street-level data for LSOA E01002234, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Lynn Close

How this home sits against its street.

9
graded homes
68
average score
C
most common grade
0.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.