23 Percy Road, Watford WD18 0QA

Detached house · 1980 · 66 m² · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes

This certificate lists these measures but records the same score with and without them, so there is no saving or rating gain to attribute to any one of them. That usually means the assessment was incomplete — here the assessor recorded no heating system at all. The costs below are real; a fresh assessment would be the way to find the gain.

MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£13
Solar water heating£4,000 – £6,000
Solar photovoltaic panels£11,000 – £20,000
Wind turbine£1,500 – £4,000

Grants verified 20 August 2026. Costs are the register’s indicative ranges.

Running costs

£722
per year at grade C
£709
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £440 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

1 November 2010£155,000
15 December 2000£80,000

Estimated today: £291,693 HPI-indexed estimate, not a valuation

Percy Road: 47 sales since 1995 · £351,600 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Chater Junior SchoolPrimary0.2 mi
Watford St John's Church of England Primary SchoolPrimary0.3 mi
Central Primary SchoolPrimary0.3 mi
Watford Grammar School for GirlsSecondary0.3 miProgress 8 +0.74 · well above average (2023/24)
Watford Grammar School for BoysSecondary0.6 miProgress 8 +0.72 · well above average (2023/24)
Westfield AcademySecondary1.0 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.

64.5
crimes a month
710
in the last 12 months
Violence and sexual offences
most common · 33% of the total

Police.uk street-level data for LSOA E01035578, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Percy Road

How this home sits against its street.

32
graded homes
67.1
average score
D
most common grade
+8.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.