The purpose of this thesis is to examine how social procurement can be a further development of public-private partnership. This is done with interviews and a case study of the social procurement Mitt Gröna Kvarter and its labor effort Boendebyggarna. The theoretical framework used in the thesis consists of public-private partnership and corporate social responsibility. It tries to answer the following questions: What does this social procurement mean by the concept of public-private partnership? What does this social procurement mean for the participants involved? How can social procurement be seen as a further development of public-private partnership? The thesis uses the theory development around the concepts of public-private partnership and corporate social responsibility and shows that social procurement does indeed have similarities to public-private partnership and could very well be a further development of it.