Thimble, Westhorpe, Marlow SL7 3RQ

Detached house · Built 1900-1929 · 129 m² · Owner-Occupied · Room heaters, electric

Upgrade Plan

FA for £32,680 · £6,536 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Hot water cylinder insulation£30£3450.1 yrs+7.5 pts
Loft insulation£350£1921.8 yrs+4.2 pts
Cavity wall insulation£1,500 – £500£3013.3 yrs+6.6 pts · reaches E
High-retention storage heaters£4,800 – £800£7943.5 yrs+17.3 pts · reaches D
Floor insulation£6,000 – £0£4037.4 yrs+8.8 pts
Solar photovoltaic panels£5,500 – £500£3738.0 yrs+8.1 pts · reaches C
Solar water heating£6,000 – £0£3139.6 yrs+6.8 pts
Solid wall insulation£14,000 – £0£43616.1 yrs+9.5 pts · reaches B
Wind turbine£25,000 – £0£33437.4 yrs+7.3 pts · reaches A

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

£5,190
per year at grade F
£1,699
per year at grade A

The full plan saves £3,491 a year — a 10.7% annual return on £32,680.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2020, states £3,326 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

No sale recorded for this address since 1995.

Schools nearby

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

SchoolPhaseDistanceProgress
Foxes Piece SchoolPrimary0.8 mi
Holy Trinity Church of England (Aided) SchoolPrimary1.3 mi
Marlow Church of England Infant SchoolPrimary1.4 mi
Great Marlow SchoolSecondary0.8 miProgress 8 -0.02 · average (2023/24)
Sir William Borlase's Grammar SchoolSecondary1.5 miProgress 8 +0.56 · well above average (2023/24)
E-Act Bourne End AcademySecondary1.8 miProgress 8 -0.18 · 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.

5.4
crimes a month
54
in the last 12 months
Violence and sexual offences
most common · 33% of the total

Police.uk street-level data for LSOA E01017866, 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.