Bachelor of Science in Civil Engineering, University Pretoria, 1960. Postgraduate, University Pretoria.
Engineer, Pretoria City Council, 1961; engineer, Geustyn Forsyth & Joubert, 1962-1963; engineer, Sennett & Wessels, 1963-1966; engineer, Scott & De Waal, 1966-1967; principal civil engineer, Department Public Works, Pretoria, 1967-1968; town and regional planner, Plan Associations, Pretoria, 1968; founder, senior partner, town and regional planner, project manager, W. G. Haese & Partners, Pretoria, since 1968. Founder Aviall Aerospace commercial aviation consultant, since 1982.
Fellow South Africa Institute Civil Engineers, Society Professional Engineers South Africa, South African Institute Aerospace Engineering, Aeronautical Association Southern Africa, Institute Directors, Royal Society Health (London). Member American Society of Civil Engineers, South Africa Association Consultant Engineers, South Africa Association Consultant Town and Regional Planners, South Africa Institute Town and Regional Planners, National Productivity Institute, International Society City and Regional Planners (The Netherlands), Foundation for Marketing Leaders South Africa, South Africa Institute Housing, South Africa Institute Steel Construction, South Africa Association Valuers, Project Management Institute, Chartered Institute Transport (United Kingdom), Institute Transport Southern Africa, South Africa Property Owners Association, Association Facilities Management, Royal Aeronautical Society, Commercial Aviation Association Southern Africa, South Africa Landscape Institute, South Africa Academy for Education, Arts and Science, South Africa Association Asphault Technology, Foundation Simon van der Stel (life), South Africa Gun-owners Association (founder), South Africa Arms and Ammunition Collectors Association (founder), Association Arbitrators (associate).
Married Alida Margaretha Boshoff, February 15, 1964. Children: Karl, Walter, Herman.