We are proposing to use land off Dormay Street for construction work and to accommodate permanent structures required to operate the main tunnel. The site would be used to connect the existing local CSO, known as the Frogmore Storm Relief – Bell Lane Creek CSO, to the main tunnel. We also need a worksite from which to drive a long connection tunnel southwards to King George’s Park and northwards to Carnwath Road Riverside to connect the CSOs at Dormay Street and King George’s Park to the main tunnel. The long connection tunnel is known as the Frogmore connection tunnel.
The location of the site is shown below. The site is within an industrial area, which includes part of the London Borough of Wandsworth’s maintenance depot, with the rest of the depot located to the west, north and south of the site. To the east is The Causeway. The northern part of the site is only required during the construction period and is separated from the main site, where permanent structures would be located, by Bell Lane Creek. The site is partially within the Wandsworth Town Conservation Area.

Dormay Street is our preferred site to intercept the Frogmore Storm Relief – Bell Lane Creek CSO because this site would result in fewer effects on an existing business operation than either of the shortlisted sites. It is brownfield land with few constraints and we now own the site together with the London Borough of Wandsworth.
For more detailed information on our proposals for the Dormay Street site, please see our site information paper below:

