39 Billy Lows Lane, Potters Bar EN6 1UX

Detached house · Built 1930-1949 · 122 m² · Boiler and radiators, mains gas

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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£30 – £75typical
Solar water heating£5,000typical
Solid wall insulation£9,000typical
Solar photovoltaic panels£4,500 – £9,000typical

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.

Running costs

£1,701
per year at grade D
£1,685
per year at grade D

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2009, states £973 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

4 November 2009£475,000
10 January 1997£117,000

Estimated today: £938,577 HPI-indexed estimate, not a valuation

Billy Lows Lane: 243 sales since 1995 · £598,142 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Ladbrooke Junior Mixed and Infant SchoolPrimary0.3 mi
Little Heath Primary SchoolPrimary0.5 mi
Cranborne Primary SchoolPrimary0.7 mi
Gracewood AcademySecondary0.2 miNot in the KS4 performance tables
Dame Alice Owen's SchoolSecondary1.2 miProgress 8 +0.92 · well above average (2023/24)
Chancellor's SchoolSecondary1.9 miProgress 8 +0.35 · 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.

9.5
crimes a month
104
in the last 12 months
Anti-social behaviour
most common · 23% of the total

Police.uk street-level data for LSOA E01023578, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Billy Lows Lane

How this home sits against its street.

97
graded homes
63.3
average score
D
most common grade
-2.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.