Architect and Builder Magazine South Africa March/April 2015 | Page 27

Workmanship The two main façade features comprise white off-shutter concrete fins and portals and a coated aluminium clad corner feature. The concrete was painstakingly detailed to make aesthetic merit of shutterwork and jointing. The sourcing and construction was coordinated with the contractor and supplier and was ground breaking for SA. The aluminium cladding comprises solid panels with a pearlescent coating, giving a more lustrous effect to that of other commonly available products. Plastered surfaces have an application of acrylic bonded coating, which was enlivened by the considered use and placement of jointing. Interior public spaces make extensive use of FSC European oak with a grey oiled finish. Facilities Facilities for staff include a canteen with a coffee and food counter. The main feature of the building is the central open courtyard with planting and integrated and movable seating. This space is accessible to all staff from the canteen and main foyer spaces and allows for open-air lunches and quiet retreat from the office environment. The design also allows for adaptability in the case of corporate functions. The office levels are provided with 5 pause areas with kitchenette, bar, table and lounge seating. Other facilities include bicycle, change and shower areas for office staff. Environmentally Sustainable Design Chevron has a Green Star rating of 5. Use of non-vehicular transport is encouraged by providing bicycle racking for staff and visitors and shower facilities. The envelope is double-glazed with high performance glass and is screened by integrally designed concrete and aluminium shading devices. More than 80% of the office space has a direct line of sight to the outdoors and allows for maximum ingress of filtered natural light. An even spread of lumen levels for artificial lighting was achieved. Rain water is recycled for use in toilets and is provided for pool filling in the adjacent gym. Acoustics were addressed with low reverberation levels and sound transfer. Tenant Covenance Chevron desired to accommodate 450 staff with sufficient parking, amenities, safety and operational excellence. The company had occupied its headquarters for 40 years and wished to own and occupy a new headquarters for a similar design life. They owned its headquarters and were in a position to apply the value of its existing asset against the cost of the new. As such, the new building is 100% let to its owner, who plans another 40 year incumbency. Future expansion has been Chevron 27