21 West Street, Croydon CR0 1DG

End-Terrace flat · 1900-1929 · Boiler and radiators, mains gas

Upgrade Plan

EC for £4,023 · £2,011 a gradeGet upgrade quotes
MeasureGrantNet costSaving / yrPaybackGrade effect
Low energy lighting£15 – £30typical£82.9 yrs+0.5 pts
Heating controls£400typical£646.3 yrs+4.5 pts · reaches D
Cavity wall insulation£1,000typical£1317.6 yrs+9.3 pts
Band A condensing boiler£2,600typical£10824.2 yrs+7.6 pts · reaches C

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

£760
per year at grade E
£450
per year at grade C

The full plan saves £310 a year — a 7.7% annual return on £4,023.

Energy costs as modelled on the certificate, not a bill. This fuel has too few recent certificates to restate at today's prices.

Sold prices

No sale recorded for this address since 1995.

West Street: 111 sales since 1995 · £318,554 average over 10 years

Schools nearby

No school in the register within reach of this postcode.

West Street

How this home sits against its street.

47
graded homes
60.7
average score
D
most common grade
-8.7
this home vs street
Energy data © Crown copyright, EPB Register© HM Land Registry, OGL v3We grade homes, never neighbourhoods.