23 Warkton, Kettering NN16 9XF

Mid-Terrace house · Built before 1900 · 58 m² · Electric storage heaters

Upgrade Plan

ED for £1,958 · £1,958 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Loft insulation£225typical£249.4 yrs+0.7 pts
Low energy lighting£20 – £45typical£214.8 yrs+0.1 pts
High-retention storage heaters£1,400 – £2,000typical£9917.2 yrs+2.9 pts · reaches D
Wind turbine(optional, beyond D)£2,750typical£4250+ yrs+1.2 pts
Solid wall insulation(optional, beyond D)£9,000typical£5450+ yrs+1.6 pts
Double glazing(optional, beyond D)£1,200 – £4,900typical£1850+ yrs+0.5 pts

Grants verified 20 August 2026. Costs are the register’s indicative ranges, except where marked typical, which this certificate did not price and which are taken instead from comparable homes of the same type. 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

£1,726
per year at grade E
£1,487
per year at grade D

The full plan saves £125 a year — a 6.4% annual return on £1,958.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2011, states £709 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

18 January 2019£184,000

Estimated today: £238,021 HPI-indexed estimate, not a valuation

Schools nearby

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

SchoolPhaseDistanceProgress
Grange Primary AcademyPrimary0.8 mi
Kettering Buccleuch AcademyAll-through1.0 miProgress 8 +0.52 · well above average (2023/24)
Millbrook Junior SchoolPrimary1.1 mi
Kettering Science AcademySecondary1.2 miProgress 8 -0.20 · average (2023/24)
The Latimer Arts CollegeSecondary1.9 miProgress 8 +0.23 · above average (2023/24)
Southfield School for GirlsSecondary1.9 miProgress 8 -0.23 · 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.

11.8
crimes a month
130
in the last 12 months
Anti-social behaviour
most common · 37% of the total

Police.uk street-level data for LSOA E01027090, 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.