Engaging the private sector in the social housing provision is a contested public policy discussion in Australia and internationally. A valuable reference case for Australia is the social housing policy in Chile, which has drifted from a traditional procurement approach, meaning that the public sector is in charge of providing housing units; to a Public-Private Partnership (PPP) approach in which a real estate social housing market was created using demand subsidy certificates and certified private social housing developers. The evolution of social housing in Chile has been well documented and assessed; however, studies have not distinguished between the effects associated to the current procurement method (PPP) and to the public policy (strategy). This research aims to understand whether the source of the impacts is the public policy or the procurement method; differentiating which procurement method appears to have better performance. The conclusion of the article is that most impacts are related to the public policy as a whole; and in general term, the PPP approach has a better performance compare to the traditional procurement approach. These findings contribute to have a clearer understanding of the effects of a PPP approach to social housing provision, adding to the Australian social housing discussion and public policy decision-making.