The 90 Long Acre redevelopment scheme consists of a major refurbishment and extension of the existing 1980s building. The development is an 8 storey building comprising 20,988m² (NIA) of office area and 1,903m² of retail (A1,D1,D2 and SG) area located on lower ground – and upper ground floors.
The office HVAC consisting of a mixed-mode design with openable façade elements allowing for natural ventilation and cooling when available to the perimeter zones. Hot water for space heating is provided by air source heat pumps and chilled water for cooling is generated via air cooled chillers. Multi function heat recovery air source heat pumps are utilised during simultaneous heating and cooling conditions for high efficiency operation.
The project involved the refurbishment and extension of the existing building to deliver over 260,000sq ft of office space, achieving BREEAM ‘Outstanding’.
The building services use a 4-pipe fan coil unit arrangement with various ventilation systems to suit the different use areas. Full building power back-up standby generation, UPS, security and access control and automatic blinds all formed part of the fit-out.
Watkins Payne was commissioned to design a Cat A fit-out refurbishment across the existing 11,800sq.ft building. The ground floor was completely redeveloped with a new office entrance lobby and 1,300sq.ft new retail space.
The building has been transformed to provide a 133 bedroom hotel including car and cycle parking on site.
