3 William Lee Close, Cold Ashby, Northampton NN6 6EJ

Detached house · Built 2003-2006 · 165 m² · Owner-Occupied · Air source heat pump, radiators, electric

Upgrade Plan

CB for £11,500 · £11,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
High-performance doors£3,500 – £500£7825.6 yrs+2.9 pts
Solar photovoltaic panels£3,500 – £5,500£9049.8 yrs+3.3 pts
Solar water heating£4,000 – £6,000£7650+ yrs+2.8 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

£2,080
per year at grade C
£1,836
per year at grade B

The full plan saves £244 a year — a 2.1% annual return on £11,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2019, states £1,226 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

1 December 2017£392,500
11 July 2014£324,995
14 September 2010£311,000

Estimated today: £481,857 HPI-indexed estimate, not a valuation

William Lee Close: 7 sales since 1995 · £373,750 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Naseby Church of England Primary AcademyPrimary2.3 mi
Guilsborough Church of England Primary SchoolPrimary2.3 mi
Welford Sibbertoft and Sulby Endowed SchoolPrimary2.8 mi
Guilsborough AcademySecondary1.7 miProgress 8 -0.17 · average (2023/24)
Houlton SchoolSecondary6.4 miNot in the KS4 performance tables
Welland Park AcademySecondary8.1 miProgress 8 +0.37 · 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.

8.5
crimes a month
85
in the last 12 months
Violence and sexual offences
most common · 32% of the total

Police.uk street-level data for LSOA E01027030, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

William Lee Close

How this home sits against its street.

3
graded homes
69.3
average score
C
most common grade
+2.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.