3 Onslow Crescent, Chislehurst BR7 5RW

Detached house · Built 1967-1975 · 148 m² · Owner-Occupied · Warm air, mains gas

Upgrade Plan

ED for £7,750 · £7,750 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Flat roof insulation£900 – £1,200£1526.9 yrs+3.0 pts
Cavity wall insulation£900 – £1,500£1508.0 yrs+2.9 pts
Solar water heating£4,000 – £7,000£15535.4 yrs+3.1 pts · reaches D
Floor insulation(optional, beyond D)£5,000 – £10,000£20037.4 yrs+3.9 pts
Warm air unit replacement(optional, beyond D)£750 – £5,000£7140.5 yrs+1.4 pts
Solar photovoltaic panels(optional, beyond D)£8,000 – £10,000£18548.5 yrs+3.7 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

£3,098
per year at grade E
£2,184
per year at grade D

The full plan saves £457 a year — a 5.9% annual return on £7,750.

Energy costs as modelled on the certificate, not a bill.

Sold prices

No sale recorded for this address since 1995.

Onslow Crescent: 3 sales since 1995

Schools nearby

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

SchoolPhaseDistanceProgress
St Nicholas Church of England PrimaryPrimary0.4 mi
Orion Mead RoadPrimary0.8 mi
Red Hill Primary SchoolPrimary0.9 mi
Orion CoopersSecondary0.4 miProgress 8 -0.38 · below average (2023/24)
Bullers Wood SchoolSecondary0.8 miProgress 8 +0.37 · above average (2023/24)
Bullers Wood School for BoysSecondary0.9 miProgress 8 0.00 · 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.

9.8
crimes a month
88
in the last 12 months
Violence and sexual offences
most common · 32% of the total

Police.uk street-level data for LSOA E01000696, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Onslow Crescent

How this home sits against its street.

3
graded homes
51.3
average score
E
most common grade
-3.3
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.