114 Upper Harlestone, Northampton NN7 4EL

Detached house · Built before 1900 · 182 m² · Owner-Occupied · Room heaters, electric

Upgrade Plan

FD for £19,000 · £9,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation£500 – £1,500£6991.4 yrs+6.4 pts
High-retention storage heaters£3,200 – £4,800£1,8432.2 yrs+16.8 pts · reaches E
Floor insulation£4,000 – £6,000£9365.3 yrs+8.5 pts
Solid wall insulation£4,000 – £14,000£1,0128.9 yrs+9.2 pts · reaches D

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

£7,953
per year at grade F
£3,463
per year at grade D

The full plan saves £4,490 a year — a 23.6% annual return on £19,000.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £6,949 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

8 May 2024£668,300
30 April 2001£330,000
15 November 2000£315,000

Estimated today: £703,363 HPI-indexed estimate, not a valuation

Nobottle Road: 1 sales since 1995

Schools nearby

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

SchoolPhaseDistanceProgress
Harlestone Primary SchoolPrimary0.6 mi
Duston Eldean Primary SchoolPrimary1.7 mi
Harpole Primary SchoolPrimary1.9 mi
Campion SchoolSecondary4.0 miProgress 8 +0.17 · average (2023/24)
Malcolm Arnold AcademySecondary4.0 miProgress 8 +0.04 · average (2023/24)
Kingsthorpe CollegeSecondary4.1 miProgress 8 -0.26 · below 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.

Nobottle Road

How this home sits against its street.

22
graded homes
47.5
average score
E
most common grade
-25.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.