30 Berwick Crescent, Sidcup DA15 8HR

Mid-Terrace house · Built 1930-1949 · 67 m² · Owner-occupied · Boiler and radiators, mains gas

Upgrade Plan

DB for £20,595 · £10,298 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£20£29.0 yrs+0.2 pts
Loft insulation£100 – £350£249.3 yrs+1.8 pts
Floor insulation£800 – £1,200£5119.6 yrs+3.8 pts · reaches C
Wind turbine£1,500 – £4,000£4250+ yrs+3.2 pts
Band A condensing boiler£2,200 – £3,000£3150+ yrs+2.4 pts
Solar water heating£4,000 – £6,000£4050+ yrs+3.0 pts
Solid wall insulation£4,000 – £14,000£5550+ yrs+4.1 pts · reaches B
Solar photovoltaic panels(optional, beyond B)£9,000 – £14,000£4750+ yrs+3.5 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

£1,054
per year at grade D
£761
per year at grade B

The full plan saves £246 a year — a 1.2% annual return on £20,595.

Restated at the fuel prices assumed in July 2026. This certificate, assessed in 2013, states £640 a year at the prices assumed then. Modelled costs, not a bill.

Sold prices

8 March 2018£345,000
17 May 2013£245,000
30 July 2004£185,000
29 June 2000£118,000

Estimated today: £425,112 HPI-indexed estimate, not a valuation

Berwick Crescent: 178 sales since 1995 · £392,798 average over 10 years

Schools nearby

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

SchoolPhaseDistanceProgress
Our Lady of the Rosary Catholic Primary SchoolPrimary0.1 mi
Alderwood Primary SchoolPrimary0.2 mi
Days Lane Primary SchoolPrimary0.2 mi
Harris Academy FalconwoodSecondary0.8 miProgress 8 -0.02 · average (2023/24)
Leigh Stationers' AcademySecondary0.8 miProgress 8 -0.33 · below average (2023/24)
Blackfen School for GirlsSecondary0.9 miProgress 8 -0.14 · 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.

8.4
crimes a month
92
in the last 12 months
Anti-social behaviour
most common · 30% of the total

Police.uk street-level data for LSOA E01000342, to 2026-06. An LSOA holds about 1,500 people, so this covers far more than one street.

Berwick Crescent

How this home sits against its street.

71
graded homes
60.5
average score
D
most common grade
+4.5
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.