He has been with UN-Habitat for 36 years, working in several countries in Africa and Asia. He has been credited with championing the People’s Process of development through innovative approaches of placing people at the centre of decision making in planning and housing. In Sri Lanka (1984-89), he was responsible for the design the Urban Housing Sub-programme of the Million Houses Programme. He developed community decision-making methods like, Community Action Planning, Community Building Guidelines and Rules, Community Contracting, and many others. In Namibia (1992), he designed the Build Together National Housing Programme. He introduced the People’s Process of Housing to South Africa in 1995, which became the main component of the national housing programme.