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Get started21 Cook Square is a semi-detached house in Erith (DA8 2PL). It has a recorded floor area of 38 m² (around 409 sq ft), construction records dating it to 1983-1990 and council tax band B. At 38 m² this is the 7th smallest of 58 units on EPC record in the building, where floor areas span 35–66 m². The building's EPC ratings span E to C, with this unit at the top. The latest certificate (October 2018) shows a C (score 76), near the top of the C band. When first surveyed in November 2008 the rating was D, the property has climbed 1 band since. Between certificates, roof efficiency went from Average to Good, window efficiency went from Very Poor to Average and main heating went from Poor to Average. Main heating runs on electricity.
21 Cook Square has no Land Registry sales on file, suggesting it has stayed in the same hands since registration began.
£156,000
Modelled from EPC, postcode comparables.
That can mean the property has never traded since the registry began publishing in 1995, was a new build that hasn't been registered yet, or is held in the same hands long-term.
EPC Rating for 21 Cook Square runs comfortably ahead of the street norm.
EPC Rating
76 (C)
Street avg 65 (D)
Floor Area
38 m²
Street avg 47 m²
CO₂ Emissions
2.1 t/year
Rail-style transport is unusually close for this postcode.
Crime
9/mo
Steady year-on-year across the wider district.
Nearest stop
0.3 km
Manor Road / Frobisher Road — bus stop.

Daytime· 07:00 – 23:00
52.5dB

Changes detected from historical EPC data
Single glazing replaced with double or better glazing
Loft insulation upgraded to recommended levels
Are we missing something? Tell us about home improvements to help adjust your valuation.
Median price across the last 5 sales in DA8 2PL: £145,000 (2025–2023).
Street avg 2.7 t/year
Habitable Rooms
2 rooms
Street avg 2 rooms
DA8 2PN
Closest school
0.4 km
Haberdashers' Slade Green Primary. 23 schools nearby.
Flood risk
Very low
From the Environment Agency.
Night-time· 23:00 – 07:00
43.4dB