11 Spring Close, Hollowell, Northampton NN6 8RY

Semi-Detached house · Built 1950-1966 · 102 m² · Owner-Occupied · Boiler and radiators, oil

Upgrade Plan

DC for £9,525 · £9,525 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£25£210.9 yrs+0.2 pts
Solar photovoltaic panels£3,500 – £5,500£4950+ yrs+4.4 pts
Floor insulation£4,000 – £6,000£5250+ yrs+4.7 pts · reaches C
Solar water heating(optional, beyond C)£4,000 – £6,000£4150+ yrs+3.7 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

£1,323
per year at grade D
£1,179
per year at grade C

The full plan saves £103 a year — a 1.1% annual return on £9,525.

Energy costs as modelled on the certificate, not a bill.

Sold prices

1 July 2024£275,000
24 October 2005£173,000

Estimated today: £288,216 HPI-indexed estimate, not a valuation

Spring Close: 17 sales since 1995 · £287,000 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Guilsborough Church of England Primary SchoolPrimary1.3 mi
Spratton Church of England Primary SchoolPrimary2.0 mi
East Haddon Church of England Primary SchoolPrimary2.8 mi
Guilsborough AcademySecondary2.1 miProgress 8 -0.17 · average (2023/24)
Kingsthorpe CollegeSecondary6.4 miProgress 8 -0.26 · below average (2023/24)
Moulton School and Science CollegeSecondary6.7 miProgress 8 -0.10 · 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.

5.9
crimes a month
47
in the last 12 months
Anti-social behaviour
most common · 36% of the total

Police.uk street-level data for LSOA E01027021, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Spring Close

How this home sits against its street.

8
graded homes
52.4
average score
D
most common grade
+11.6
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.