Two Gatehouses, Maintenance Building & Perimeter Walls. The project was delivered for Huddle Investments (Pty) Ltd, with SIP Project Managers (Pty) Ltd as Principal Agent, Boogertman & Partners as Architect, and Brian Heineberg & Associates as Quantity Surveyor. Mechanical / Electrical Engineer: Graeme Page Consulting Engineers / CKR Consulting Engineers. Structural Engineer: Pure Consulting.