Project case study
One Centenary Way
Waterproofing design for the single-storey basement to Phase 2 of One Centenary Way, Birmingham, part of which spans the A38 Queensway Tunnel, achieving Grade 2 with some Grade 3 using Type A and Type B protection.
CLW was commissioned as the waterproofing consultant for the single-storey basement to Phase 2 of One Centenary Way, Birmingham. The basement sits below a fifteen-storey office building, and part of it spans the existing A38 Queensway Tunnel.
Because part of the basement was over and adjacent to the tunnel, careful planning of the waterproofing design was required, as movement around this area could be considerable. CLW worked closely with the wider design team to develop a clear and efficient design for the Grade 2 waterproofing across the majority of the basement, with some Grade 3 areas. The specification combined Type A pre- and post-applied membranes with Type B structurally integral protection, supported by post-applied slurries and crystalline coatings.
Project credit: Weedon Architects. Structural engineer: Ramboll UK. CGI: Marcela Grassi.
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Independent waterproofing design from RIBA Stage 2 through construction monitoring. Defensible, document-led, contractor-agnostic.