Duży problem z cienką linią – linia zabudowy w planach zagospodarowania przestrzennego największych miast Małopolski

The building line designated in local land development plan is one of the important instruments for shaping urban space and the creation of spatial order. The aim of the study is to analyze the potential and real influence of this instrument on the formation of the compositional values of space. The analysis covered land development plans of the 3 largest cities in Lesser Poland. The analysis included the methods of defining the building lines and determining their course, including in relation to the rules of property division established by the plan. The results of the study illustrate the immense liberalism in the use of the analyzed instrument and marginalization of its importance in shaping urban space. The study also indicates the need for remedial actions and attempts to indicate them.