Structural Waterproofing

3 Down Street Mews

FIS were engaged by Leander Build Ltd for the design of structural waterproofing on the Down Street Mews redevelopment. The concept of the development was a modernist design nestled within the Mayfair area of London, offering luxurious family accommodation over seven floors with guest accommodation, swimming pool, spa, cinema, roof gardens, winter gardens and sub terrain fully automated car parking.

The development included a three-storey basement, including a swimming pool at B2 level. The quality of this development meant that three lines of defence against water ingress were considered necessary. FIS were able to assist with the design of the waterproofing which included the installation of Maxiprufe 2000 Bentonite membrane, Hydrocrete Watertight Concrete and Hydroflow HP Cavity Drain System. FIS were able to provide a single source 25 year warranty for both the product and the design element.