Architect and Builder August/September 2019 | Page 90

33 Baker Street REFURBISHMENTS The 33 Baker Street building was originally developed by the Sasol Pension Fund. With the vacating of the Sasol Group from Rosebank, it became necessary to rejuvenate 33 Baker in addition to accommodating a large corporate tenant. Although the building has a strong exposure on the corner of Oxford Road and Baker Street, it is diminutive in scale compared to the adjacent buildings and demanded a new architectural expression that would achieve a unique identity. The intention was to replace the building’s existing outdated façade with a modern, contemporary flavour. This entailed demolition of the entire façade and pitched roofing, enclosing in all but one of the recesses in the façade cladding, with a curtain wall concept and introducing a new roof concealed behind the new façade. Since the building could not be extended vertically, the proportions of the existing structure presented an opportunity to remodel the building with a horizontal emphasis to achieve a more simplified, modern and elegant design. This was achieved by demolition of the entire façade and pitched roofing, closing in all but one of the indentations in the façade, cladding with a curtain wall concept and introducing a new roof concealed behind the new façade. The decision to enclose the existing indentations in the façade had the added benefit of increasing the lettable office area within the building, thus creating more usable office plates. The total GLA was increased to 13,400m 2 which includes the existing retail tenants that remained, and the new corporate tenant area. The modulated curtain wall system includes areas of double glazing and single glazing. The double glazing 90 portions of glass are featured on the prominent façades of the building, on which a random arrangement of vertical, aluminium fins have been applied to achieve a texture to the elevations defined with aluminium clad surrounds. The balance of the façades have a single glazing curtain wall system to create a smooth and sleek look. Furthermore, the façade is articulated with full height aluminium panels as well as plastered and painted brickwork. The subtle application of the black colour has been achieved by way of using a lighter shade of the double glazing to the main elevations and black single glazing to the secondary elevations giving the illusion of shadow. This is complimented by a satin sheen to the aluminium cladding and a textured black to the plastered brick walls. Client: Sasol Pension Fund Project Managers & Principal Agents: TERM Project Management Architect: SVA International Quantity Surveyors: Matla QS Civil & Structural Engineers: Sutherland Engineers Mechanical Engineers: Wingrove Electrical Engineers: WSP Wet Services: Smal Consulting Fire Consultants: Specialised Fire Technology Lift Consultants: Projitech Health & Safety: Cairnmead Industrial Consultants Interior Designers & Space Planners: TC RPv Architects Landscape Architects: Insite Main Contractor: WBHO Construction SAPOA Awards