The problems now engulfing the major cities in Indonesia are about land issues, where the amounts of land available not accommodate the entire population. This is what ultimately makes the apartment of choice for major cities in Indonesia to be able to cope with overcrowding and efforts to comply with proper shelter for the community. However, in reality the construction of flats is not reserved only for the residence only, also for the purposes of business or venture. This research aims to find out how the non residential flats certification according to Act No. 20 of Flats in 2011. Law research used in this study is a normative legal research method. With the primary legal materials sourced from the Code of civil law and also Law 20 of 2011 About Flats and secondary legal materials in the form of materials or materials relating and explaining the issues of primary legal materials consisting of books and literature-literature related to nonresidential flats. Method of deductive reasoning, and analysis used is qualitative analysis. The results showed that under law No. 20 in 2011, certification of non residential flats is still not specifically described and follow the certification process of the flats in General. This means there is no distinction between certification of residential flats or non residential, although in the legislation described difference.