Architect and Builder August 2016 | Page 64

Main Design Components The building comprises 5 basement and 5 office levels with the 6th level being a roof top restaurant. Each typical office floor wraps around the core that consists of services and vertical circulation to various levels of the building, thus providing a robust and flexible office space for a multi-tenanted occupation. The outdoor spaces on the ground floor create an intimate courtyard, and the decked roof area, which incorporates a restaurant, provides an outdoor recreational space. The main access to the building is through Ferguson Road, with basement parking accessible through Melville Road. The main entrance from the street is easily identified by a framed colonnade with a staircase leading to a double volume entrance foyer, characterised by natural light and sculpted light fittings. Entrance to the main foyer from the basement parking channels one through a narrow staircase into a double volume space. 62 Access to office level is through lifts and a fire escape staircase that performs a dual function as both an emergency exit and a communication staircase. The conventional fire escape staircase would normally be in an enclosed 2 hour firerated structure with solid walls. However, in the project, the staircase has been opened up to form part of and an extension to the lift lobby, offering opportunities for turning a small space into larger, open communal spaces. This was enabled by the use of a FENCO water curtain spray system on glass shopfronts leading to the lobby, thereby creating a 2 hour fire-rated space. The offices are serviced by two stretcher lifts from the ground floor to the roof level. Two sets of fire escape staircases located in the core, are accessible through the ring corridor around the core allowing for flexibility of occupancy of more than one tenant. One fire escape staircase exits the building through the basement on ground level in Melville Street. 35 Ferguson