Windmill Cottage, Howcombe, Napton, Southam CV47 8NP

Detached house · Built before 1900 · 101 m² · Electric storage heaters

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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
Change of heating system£3,000 – £7,000
Loft insulation£100 – £300
Solar water heating£4,000 – £6,000
Cavity wall insulation£100 – £300
Solid wall insulation£5,500 – £14,500
Solar photovoltaic panels£11,000 – £20,000

Grants verified 20 August 2026. Costs are the register’s indicative ranges.

Running costs

£7,476
per year at grade G
£6,634
per year at grade G

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £3,453 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

24 May 2012£220,000

Estimated today: £353,765 HPI-indexed estimate, not a valuation

Howcombe: 1 sales since 1995

Schools nearby

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

SchoolPhaseDistanceProgress
St Lawrence CofE (Voluntary Aided) Primary SchoolPrimary0.3 mi
Stockton Primary SchoolPrimary2.2 mi
St Mary's Catholic Primary School, SouthamPrimary2.6 mi
Southam CollegeSecondary3.0 miProgress 8 +0.08 · average (2023/24)
Rugby High SchoolSecondary7.5 miProgress 8 +0.66 · well above average (2023/24)
Bilton SchoolSecondary8.2 miProgress 8 -0.31 · 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.

6.4
crimes a month
51
in the last 12 months
Anti-social behaviour
most common · 29% of the total

Police.uk street-level data for LSOA E01031224, 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.