This paper focuses on the legal and institutional aspects faced by practitioners during their professional actions. There are two situations: parcelling for private housing on private terrains promoted by private promoters and parcelling for young people housing on local council lands. Urban plans have been and still are facing the gloomy reality of suggested changes inside the legislation and methodology of approving the urbanism documentation, the LAP (Local Area Plan) and UDP (Urban Design Plan). In order to establish differentiated responsibilities for local administration and private developer (initiator of the Local Area Plan) regarding the ensuring of necessary resources so that the urban plan should be applied and without whose completion the building permit cannot be issued. To further illustrate the issues, a successful operation of building a 240 apartment housing development on 11.00 ha given in Chitila, Ilfov County is presented. The involved project partners were: Chitila Local Council which provided with the land and pledged to carry out the infrastructure works, architects’ design office which produce the parcelling plan and provided the execution projects for a set of 6 types of buildings and the young beneficiaries.