The Sustainable Land Development Program (SLDP) consists of a group of economists and environmental scientists whose work focuses primarily on land administration, housing economics and policy and land use planning. They advocate for evidence-based public policy associated with efficient property market, orderly development and effective land administration. If the intention is to move Papua New Guinea forward, access to customary land for development must result in a “win-win” situation for the landowner, investor and the State. Quality, adequate and affordable housing must be accessible to all residents. Land development must be conducted in orderly and efficient manner. The SLDP contributes to this, by focusing primarily on three thematic areas: Land Administration, Land use Planning and Property Development.