4 Colnbrook By Pass, Harmondsworth, West Drayton UB7 0HG

Semi-Detached house · 2024 · 129 m² · Unknown · Room heaters, electric

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Solar water heating(optional, beyond E)£4,000 – £7,000£3550+ yrs+3.2 pts
Solar photovoltaic panels(optional, beyond E)£8,000 – £10,000£4250+ yrs+3.8 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

£2,456
per year at grade E
£2,379
per year at grade E

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2026, states £2,509 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

17 December 2024£735,000
5 September 2003£290,000

Estimated today: £754,303 HPI-indexed estimate, not a valuation

Colnbrook By Pass: 9 sales since 1995 · £743,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Harmondsworth Primary SchoolPrimary0.3 mi
St Martin's Church of England Primary SchoolPrimary1.1 mi
Pippins SchoolPrimary1.1 mi
Harlington SchoolSecondary2.3 miProgress 8 +0.27 · above average (2023/24)
Park Academy West LondonSecondary2.7 miProgress 8 -0.30 · below average (2023/24)
Global AcademySecondary2.9 miProgress 8 -1.90 · well below 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.

502.2
crimes a month
5,524
in the last 12 months
Other crime
most common · 28% of the total

Police.uk street-level data for LSOA E01002444, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Colnbrook By Pass

How this home sits against its street.

6
graded homes
45.7
average score
E
most common grade
-3.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.