An updated version of this profile is online at nationalcharacterareas.co.uk. This pdf is retained for historical and completeness purposes.
The Thames Basin Lowlands National Character Area (NCA) is a low-lying plain within the London Basin. It stretches from the London suburbs of South Norwood in the east to Hale on the Surrey/Hampshire border in the west. The landscape is generally flat but in places is gently undulating. The underlying geology is predominantly London Clay with small outcrops of Bracklesham and Barton Group sand, silt and clay between Esher and Cobham. Part of the North Downs Chalk bedrock, fringed with Thanet Formation and Lambeth Group sediments, underlies Croydon and Sutton.
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