Gray Corners, West Common Grove, Harpenden AL5 2LE

Detached house · Built 1900-1929 · 348 m² · Owner-Occupied · Ground source heat pump, underfloor, electric

Upgrade Plan

CB for £9,500 · £9,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Solar photovoltaic panels£3,500 – £5,500£7950+ yrs+2.7 pts
Solar water heating£4,000 – £6,000£6750+ yrs+2.3 pts · reaches B

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

£3,259
per year at grade C
£3,113
per year at grade B

The full plan saves £146 a year — a 1.5% annual return on £9,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2021, states £2,103 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

22 July 2024£2,425,000
14 March 2019£1,700,000
23 July 1999£650,000

Estimated today: £2,615,589 HPI-indexed estimate, not a valuation

West Common Grove: 12 sales since 1995 · £1,897,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
St Dominic Catholic Primary SchoolPrimary0.8 mi
The Grove Junior SchoolPrimary0.9 mi
The Grove Infant and Nursery SchoolPrimary0.9 mi
St George's SchoolSecondary1.5 miProgress 8 +0.65 · well above average (2023/24)
Sir John Lawes SchoolSecondary1.6 miProgress 8 +0.79 · well above average (2023/24)
Roundwood Park SchoolSecondary1.6 miProgress 8 +0.79 · 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.

4.4
crimes a month
31
in the last 12 months
Violence and sexual offences
most common · 29% of the total

Police.uk street-level data for LSOA E01023696, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

West Common Grove

How this home sits against its street.

11
graded homes
58.4
average score
E
most common grade
+18.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.