65 Upper Harlestone, Northampton NN7 4EH

Detached house · Built before 1900 · 115 m² · Boiler and radiators, electric

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This certificate lists these measures but records the same score with and without them, so there is no saving or rating gain to attribute to any one of them. That usually means the assessment was incomplete — here the assessor recorded no heating system at all. The costs below are real; a fresh assessment would be the way to find the gain.

MeasureGrantNet costSaving / yrPaybackGrade effect
Solid wall insulation£9,000typical
Wind turbine£2,750 – £20,000typical

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.

Running costs

£4,964
per year at grade G

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2010, states £1,991 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

20 February 2020£470,000
17 October 2014£420,000
17 December 2004£350,000

Estimated today: £573,491 HPI-indexed estimate, not a valuation

Schools nearby

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

SchoolPhaseDistanceProgress
Harlestone Primary SchoolPrimary0.5 mi
Duston Eldean Primary SchoolPrimary1.5 mi
The Duston SchoolAll-through1.8 miProgress 8 +0.14 · average (2023/24)
Malcolm Arnold AcademySecondary3.8 miProgress 8 +0.04 · average (2023/24)
Kingsthorpe CollegeSecondary3.9 miProgress 8 -0.26 · below average (2023/24)
Campion SchoolSecondary4.0 miProgress 8 +0.17 · 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.

8.8
crimes a month
88
in the last 12 months
Violence and sexual offences
most common · 34% of the total

Police.uk street-level data for LSOA E01026998, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.