4 High Street, Knapwell, Cambridge CB23 4NP

Detached house · Pre-1900 · Boiler and radiators, oil

Upgrade Plan

GE for £12,053 · £6,026 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Heating controls£400typical£1482.7 yrs+3.7 pts · reaches F
Low energy lighting£30 – £75typical£183.0 yrs+0.4 pts
Band A condensing boiler£2,600typical£24910.4 yrs+6.2 pts
Solid wall insulation£9,000typical£43920.5 yrs+11.0 pts · reaches E
Double glazing(optional, beyond E)£1,200 – £4,900typical£14720.8 yrs+3.7 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

£2,485
per year at grade G
£1,485
per year at grade E

The full plan saves £853 a year — a 7.1% annual return on £12,053.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

No sale recorded for this address since 1995.

High Street: 35 sales since 1995 · £520,125 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Elsworth CofE VA Primary SchoolPrimary1.3 mi
Jeavons Wood Primary SchoolPrimary2.2 mi
The Vine Inter-Church Primary SchoolPrimary2.4 mi
Cambourne Village CollegeSecondary2.4 miProgress 8 +0.30 · above average (2023/24)
Swavesey Village CollegeSecondary3.6 miProgress 8 +0.55 · well above average (2023/24)
Comberton Village CollegeSecondary5.1 miProgress 8 +0.42 · 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.

7.3
crimes a month
66
in the last 12 months
Violence and sexual offences
most common · 47% of the total

Police.uk street-level data for LSOA E01018277, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

High Street

How this home sits against its street.

22
graded homes
49.9
average score
D
most common grade
-30.9
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.