The article analyses an in-house procurement concept in the contexts of scientific doctrine, substantive law and legal practice. The Directive 2014/24/EU of the European Parliament and of the Council of 26 February 2014 on public procurement and repealing Directive 2004/18/EC is discussed in the part of provisions regulating cases where a public contract between public entities is not a subject to public procurement procedures. In addition, statistical data of in-house procurements in Lithuania are presented and threats of in-house procurement concept application as well as possibilities of improvement thereof are assessed.