117 Knightsfield, Welwyn Garden City AL8 7JD

End-Terrace flat · Built 1930-1949 · 68 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

Get upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation(optional, beyond C)£500 – £1,500£1039.7 yrs+2.6 pts
Floor insulation(optional, beyond C)£4,000 – £6,000£13736.4 yrs+3.4 pts

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

£1,024
per year at grade C
£784
per year at grade C

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £857 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

11 June 2025£320,000
18 January 2013£170,000
29 June 2004£163,000

Estimated today: £332,926 HPI-indexed estimate, not a valuation

Knightsfield: 286 sales since 1995 · £467,244 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Templewood Primary SchoolPrimary0.3 mi
Harwood Hill Junior Mixed Infant and Nursery SchoolPrimary0.3 mi
Homerswood Primary and Nursery SchoolPrimary0.4 mi
Monk's Walk SchoolSecondary0.6 miProgress 8 +0.24 · above average (2023/24)
Ridgeway AcademySecondary1.3 miProgress 8 -0.47 · below average (2023/24)
Stanborough SchoolSecondary1.6 miProgress 8 +0.18 · 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.

5.4
crimes a month
59
in the last 12 months
Violence and sexual offences
most common · 53% of the total

Police.uk street-level data for LSOA E01023961, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Knightsfield

How this home sits against its street.

197
graded homes
65.1
average score
C
most common grade
+4.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.