SIX BLOCKS UP TO 16 STOREYS PROVIDING 474 RESIDENTIAL UNITS, COMMUNITY AND OFFICE SPACE.
Known to the public as Eden Grove this site is located at 17-51 London Road, Staines and was previously occupied by Centrica, which was vacated in 2005. The remaining building and structures were then demolished in 2008.
The site comprises an area of 1.1. hectares fronting both London Road and Fairfield Avenue.
The new development will consist of six buildings (Blocks 1-6) of varying height up to 16 storeys and will comprise of office floor space plus amenities and 474 residential units. New landscaped areas will be created along with vehicular access and an energy centre. A single level of basement will be created across the whole area of the site to provide cycle and car parking spaces for the residential occupants with access to Fairfield Avenue.
Tully De'Ath are providing the Civil, Structural and Highway engineering services from RIBA Stage 2 to 6 on behalf Berkely Homes (West London) Ltd. The scope includes the assessment of an existing sheet piled wall, which is being utilised to form the temporary works to the basement. The new basement structure is subject to Highway Approval in principle agreement with Surrey County Council and party wall agreements to adjoining properties.
The basement, providing approx. 8400m2 area will be formed as an RC box contained within the existing sheet piled wall perimeter. From this RC columns support a ground floor slab, in turn, supporting the 6 RC frame-blocks.
The client's preference for off-site prefabricated manufacture has driven the design RC precast columns along with prefabricated 'bamtec' reinforcement matts to the residential blocks.
The foundation configuration has been developed following assessment of the previous building foundations, undertaken as a desktop stidy of the Local Authority building control records. This study identified the expected redundant pile layout, which was then locally verified prior to piling operations commencing.
The basement box will have RC attenuation boxes incorporated to the main structure, this provides approximately 590m3 of storm water storage before being discharged via rising main into the River Ash at a controlled rare of 15l/s. The foul water discharge was agreed with Thames Water prior planning via a pre-development enquiry capacity check.