Combined Design & Drafting Pty Ltd (CDD) is a multi disciplinary firm of engineers, project managers and draftspersons, providing professional services to a broad spectrum of clients in private enterprise. We provide cost effective and complete engineering services in the following disciplines: O Mechanical Engineering O Structural Engineering O Civil Engineering O Project and Construction Management A balance of permanent and contract staff (with more than 150 years of engineering and project management experience) using the latest technology and interactive 3D software, and with a passion for excellence and customer service, combine to make CDD a leader in its field.