11 Coniston Close, Daventry NN11 9EE

Detached house · Built 1976-1982 · 127 m² · Owner-Occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £15,500 · £7,750 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Cavity wall insulation£500 – £1,500£1079.3 yrs+3.5 pts · reaches C
Solar photovoltaic panels£3,500 – £5,500£13333.9 yrs+4.3 pts
Floor insulation£4,000 – £6,000£14434.8 yrs+4.6 pts
Solar water heating£4,000 – £6,000£11144.9 yrs+3.6 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

£1,904
per year at grade D
£1,409
per year at grade B

The full plan saves £495 a year — a 3.2% annual return on £15,500.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2025, states £1,583 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

14 October 2016£295,000
28 August 2009£229,000
30 July 2004£235,000
23 April 1999£105,000

Estimated today: £384,266 HPI-indexed estimate, not a valuation

Coniston Close: 27 sales since 1995 · £296,429 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Falconer's Hill AcademyPrimary0.5 mi
Falconer's Hill Infant SchoolPrimary0.5 mi
E-ACT The Grange SchoolPrimary0.5 mi
The Parker E-ACT AcademySecondary0.4 miProgress 8 -0.27 · below average (2023/24)
Ashlawn SchoolSecondary7.1 miProgress 8 -0.08 · average (2023/24)
Houlton SchoolSecondary7.4 miNot in the KS4 performance tables

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.

5.8
crimes a month
46
in the last 12 months
Violence and sexual offences
most common · 41% of the total

Police.uk street-level data for LSOA E01027010, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Coniston Close

How this home sits against its street.

10
graded homes
63.7
average score
D
most common grade
+2.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.