1 Preston Waye, Harrow HA3 0QG

Semi-Detached house · Built 1900-1929 · 100 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation(optional, beyond E)£23 – £300typical£871.9 yrs+2.0 pts
Band A condensing boiler(optional, beyond E)£2,600typical£6241.7 yrs+1.5 pts
Solar water heating(optional, beyond E)£5,000typical£7950+ yrs+1.8 pts
Solar photovoltaic panels(optional, beyond E)£4,500 – £9,000typical£9450+ yrs+2.2 pts
Solid wall insulation(optional, beyond E)£9,000typical£11050+ yrs+2.6 pts
Double glazing(optional, beyond E)£1,200 – £4,900typical£3750+ yrs+0.9 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£2,369
per year at grade E
£1,901
per year at grade E

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £1,462 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

10 December 2010£499,950
20 May 2010£360,000

Estimated today: £942,956 HPI-indexed estimate, not a valuation

Preston Waye: 17 sales since 1995 · £665,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Preston Park Primary SchoolPrimary0.2 mi
Mount Stewart Junior SchoolPrimary0.4 mi
Mount Stewart Infant SchoolPrimary0.4 mi
St Gregory's Catholic Science CollegeSecondary0.7 miProgress 8 +0.73 · well above average (2023/24)
Claremont High SchoolSecondary0.9 miProgress 8 +0.59 · well above average (2023/24)
JFSSecondary0.9 miProgress 8 +1.16 · 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.

15.5
crimes a month
170
in the last 12 months
Anti-social behaviour
most common · 35% of the total

Police.uk street-level data for LSOA E01000487, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Preston Waye

How this home sits against its street.

12
graded homes
57.1
average score
D
most common grade
-18.1
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.