30 Grangewood, Potters Bar EN6 1SL

Detached house · Built 1950-1966 · 94 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

EB for £21,838 · £7,279 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£15 – £30£1500.2 yrs+5.5 pts
Loft insulation£100 – £350£842.7 yrs+3.0 pts · reaches D
Floor insulation£800 – £1,200£1755.7 yrs+6.4 pts
Heating controls£350 – £450£646.3 yrs+2.3 pts
Cavity wall insulation£500 – £1,500£1317.6 yrs+4.8 pts
Low energy lighting£90£811.7 yrs+0.3 pts · reaches C
Band A condensing boiler£2,200 – £3,000£10824.1 yrs+3.9 pts
Solar water heating£4,000 – £6,000£13636.7 yrs+4.9 pts
Solar photovoltaic panels£9,000 – £14,000£16250+ yrs+5.9 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

£1,950
per year at grade E
£932
per year at grade B

The full plan saves £1,018 a year — a 4.7% annual return on £21,838.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2014, states £1,310 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

24 October 2014£499,950
10 October 2003£350,000
4 September 1998£199,500
12 September 1995£154,000

Estimated today: £711,329 HPI-indexed estimate, not a valuation

Grangewood: 34 sales since 1995 · £789,167 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Little Heath Primary SchoolPrimary0.2 mi
Ladbrooke Junior Mixed and Infant SchoolPrimary0.6 mi
Cranborne Primary SchoolPrimary0.9 mi
Gracewood AcademySecondary0.2 miNot in the KS4 performance tables
Dame Alice Owen's SchoolSecondary1.5 miProgress 8 +0.92 · well above average (2023/24)
Chancellor's SchoolSecondary1.6 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.

Grangewood

How this home sits against its street.

19
graded homes
61.9
average score
C
most common grade
-14.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.