Wellington House

Wellington House is a 1970s building that underwent significant refurbishment and extension, increasing the net internal area (NIA) from 1,373m² to 3,210m² over five office floors. The existing ground floor retail units were retained and reconfigured for their new and existing occupants. The refurbishment included a remodelled reception area, new lift core and WC and shower facilities at the basement level. Due to outfall limitations of the existing external drainage, a new sustainable urban drainage system was employed, combining green roofing and attenuation tanks.

Our building services team replaced the existing utility services with renewable energy systems. An underfloor air ventilation system was adopted to avoid the need for high level ductwork, improving both aesthetics and floor-to-ceiling heights. Building’s existing frame and basement walls were retained with a new rear extension and a single storey vertical extension thanks to our structural engineers. The feature curved corned was created within the existing concrete frame by adding new columns and undertaking local s strengthening work.

Richard Gillett, Project Manager, said “Early involvement by Cundall’s fire engineering team produced an engineered fire solution for the project, resulting in the omission of a secondary stair core, thereby increasing the available NIA. Our acoustic design and modelling advice informed the selection and application of architectural finishes in the new reception area and the open plan office environments to ensure BCO requirements could be achieved.”