166 Sywell Road, Overstone, Northampton NN6 0AG

Semi-Detached house · Built 1950-1966 · 108 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

C → B for £10,500 · £10,500 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation—£800 – £1,200£4223.9 yrs+4.1 pts
Solar photovoltaic panels—£3,500 – £5,500£3950+ yrs+3.8 pts
Solar water heating—£4,000 – £6,000£3250+ yrs+3.2 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

£1,245
per year at grade C
£1,132
per year at grade B

The full plan saves £113 a year — a 1.1% annual return on £10,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £1,048 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

30 August 2019£275,000
15 July 2004£200,000
8 November 2002£155,000
9 February 2001£120,000

Estimated today: £345,435 HPI-indexed estimate, not a valuation

Sywell Road: 196 sales since 1995 · £548,433 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Overstone Primary SchoolPrimaryunder 0.1 mi—
Sywell Church of England Primary SchoolPrimary0.8 mi—
Moulton Primary SchoolPrimary1.4 mi—
Northampton SchoolSecondary1.0 miNot in the KS4 performance tables
Moulton School and Science CollegeSecondary1.5 miProgress 8 -0.10 · average (2023/24)
St Thomas Becket Catholic SchoolSecondary2.1 miProgress 8 -0.22 · 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.

31
crimes a month
341
in the last 12 months
Violence and sexual offences
most common · 41% of the total

Police.uk street-level data for LSOA E01027018, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Sywell Road

How this home sits against its street.

85
graded homes
62.7
average score
D
most common grade
+10.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.