13 Barnfield Road, Harpenden AL5 5TH

Semi-Detached house · Built 1930-1949 · 101 m² · Boiler and radiators, mains gas

Upgrade Plan

DC for £6,035 · £6,035 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£20 – £50typical£56.9 yrs+0.2 pts
Cavity wall insulation£1,000typical£8611.6 yrs+2.7 pts
Solar water heating£5,000typical£8950+ yrs+2.8 pts · reaches C
Solar photovoltaic panels(optional, beyond C)£4,500 – £9,000typical£10750+ yrs+3.3 pts

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. 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

£1,377
per year at grade D
£1,090
per year at grade C

The full plan saves £180 a year — a 3.0% annual return on £6,035.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £849 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

12 August 2015£682,500
17 August 2010£530,000
30 September 2005£390,750
6 December 1999£197,000

Estimated today: £957,483 HPI-indexed estimate, not a valuation

Barnfield Road: 98 sales since 1995 · £888,531 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
The Grove Junior SchoolPrimary0.2 mi
The Grove Infant and Nursery SchoolPrimary0.3 mi
High Beeches Primary SchoolPrimary0.4 mi
Sir John Lawes SchoolSecondary0.9 miProgress 8 +0.79 · well above average (2023/24)
St George's SchoolSecondary1.0 miProgress 8 +0.65 · well above average (2023/24)
Katherine Warington SchoolSecondary1.0 miProgress 8 +0.48 · 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.

5.8
crimes a month
52
in the last 12 months
Shoplifting
most common · 25% of the total

Police.uk street-level data for LSOA E01023703, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Barnfield Road

How this home sits against its street.

35
graded homes
59
average score
D
most common grade
+5.0
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.