Construction permitting and spatial regulations are important for the functioning of modern society as regards enabling basic social needs, the right to a healthy living environment and the possibility to promote business and economic growth. However, what is typical of these real life situations is a collision of several private interests and the public interest. In order to protect the latter, the state needs to set certain limitations also by means of regulations and to ensure the appropriate administrative capacity to implement them. Moreover, the right and possibility to build is important for sustainable regional development. The article addresses the profiles of Slovenia and Croatia, in particular their procedural aspects and administrative systems’ efficiency in the field of construction. The results show that both countries regulate their construction procedures similarly, with a special focus on the simplification of administrative procedures. As such, they continually try to enhance administrative capacity.