9 Park Hill, Harpenden AL5 3AT

End-Terrace house · Built 1900-1929 · 84 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

EB for £26,450 · £8,817 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£800 – £1,200£1745.7 yrs+7.4 pts · reaches D
Low energy lighting£50£86.6 yrs+0.3 pts
Solar water heating£4,000 – £6,000£13537.0 yrs+5.7 pts
Solar photovoltaic panels£5,000 – £8,000£16140.3 yrs+6.9 pts · reaches C
Solid wall insulation£4,000 – £14,000£18847.8 yrs+8.0 pts
Double glazing£3,300 – £6,500£6350+ yrs+2.7 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

£1,710
per year at grade E
£981
per year at grade B

The full plan saves £729 a year — a 2.8% annual return on £26,450.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2015, states £1,201 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

27 September 2019£595,000
31 August 2018£575,000
30 March 2015£516,650
10 December 2010£430,000
28 September 2007£397,500
11 August 2004£315,000
18 May 2001£235,000
9 June 1999£165,000
28 May 1997£129,950

Estimated today: £730,320 HPI-indexed estimate, not a valuation

Park Hill: 111 sales since 1995 · £749,602 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Roundwood Primary SchoolPrimary0.3 mi
St Nicholas CofE VA Primary SchoolPrimary0.5 mi
Wood End SchoolPrimary0.7 mi
Roundwood Park SchoolSecondary0.3 miProgress 8 +0.79 · well above average (2023/24)
St George's SchoolSecondary0.6 miProgress 8 +0.65 · well above average (2023/24)
Sir John Lawes SchoolSecondary0.9 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.

6.4
crimes a month
45
in the last 12 months
Violence and sexual offences
most common · 31% of the total

Police.uk street-level data for LSOA E01023690, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Park Hill

How this home sits against its street.

33
graded homes
59.5
average score
D
most common grade
-8.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.