 Notting Hill
West London
Major re-development of a period family residence in the exclusive Notting Hill
area of London.
 Works consisted of demolition of the existing 3 storey detached property with the exception of the feature rendered façade and the two masonry flank walls: construction of a new 3 – 4 metre deep basement including pool and two upper floors in steel with either concrete or timber floors
Contractors Design Services acted as specialist design consultants to Principal Contractor, Westgreen Construction Ltd for the temporary façade retention and for the support of the new basement excavation. An internal flying shoring system using proprietary components (Mabey System 160) was adopted to temporarily stabilise the retained external walls prior to demolition. Working closely with Mabey Hire, CDS oversaw its design and installation issuing Permits to Load to comply with current good practice.
For the new basement construction, CDS offered an alternative support solution based on Giken Europe BV’S patented ‘Zero’ sheet piling system. This realised several key advantages over the original contiguous bored pile and underpinning design, not least being the vastly improved construction period.
CDS designed the sheet piling and its temporary support to minimise ground movements during excavation to the satisfaction of the client’s consulting team and those of the adjoining owners. A structural monitoring system was also established under CDS’s control to confirm that movements were in line with predictions and to give confidence to adjoining owners.
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