4 Bridge Cottages, Button Street, Swanley BR8 8DX

Semi-Detached house · Built 1930-1949 · 100 m² · Owner-Occupied · Electric storage heaters

Upgrade Plan

EB for £10,405 · £3,468 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Floor insulation£1,200 – £200£2223.1 yrs+5.7 pts · reaches D
High-retention storage heaters£2,400 – £400£4383.2 yrs+11.3 pts
Loft insulation£350£1063.3 yrs+2.7 pts · reaches C
Low energy lighting£55£105.7 yrs+0.3 pts
Double glazing£1,400 – £400£8011.2 yrs+2.1 pts
Solar water heating£6,000 – £0£17317.4 yrs+4.4 pts
Solar photovoltaic panels£8,000 – £0£20619.4 yrs+5.3 pts · reaches B
Solid wall insulation(optional, beyond B)£14,000 – £0£24029.1 yrs+6.2 pts

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

£2,563
per year at grade E
£1,088
per year at grade B

The full plan saves £1,235 a year — a 11.9% annual return on £10,405.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2018, states £1,480 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

4 May 2000£128,000
23 October 1995£37,000

Estimated today: £486,029 HPI-indexed estimate, not a valuation

Bridge Cottages: 8 sales since 1995

Schools nearby

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

SchoolPhaseDistanceProgress
St Pauls' Church of England Voluntary Controlled Primary SchoolPrimary0.5 mi
Downsview Community Primary SchoolPrimary1.0 mi
Hextable Primary SchoolPrimary1.2 mi
Orchards AcademySecondary1.5 miProgress 8 +0.03 · average (2023/24)
Wilmington Grammar School for BoysSecondary1.8 miProgress 8 +0.65 · well above average (2023/24)
Leigh Academy WilmingtonSecondary1.9 miProgress 8 +0.23 · above 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.

12.9
crimes a month
116
in the last 12 months
Violence and sexual offences
most common · 28% of the total

Police.uk street-level data for LSOA E01024472, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Bridge Cottages

How this home sits against its street.

3
graded homes
50.7
average score
E
most common grade
-0.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.