The article presents changes in the manner of representing buildings in the Land and Property Register (EGIB) database based on seven documents constituting the legal foundation for keeping Land and Property Register in Poland in the period of 1955–2018. The scope of the graphic part, the descriptive part including distinguishing the building status, the definitions of the contour and the built-up area, as well as attention to the types of buildings and building registration data were subjected to comparison. For the guidelines as to the building’s contour included in descriptive part, the numerical image of three selected buildings for the 5 analysed time periods has been presented in order to illustrate the changes that have occurred, relating to the graphic part.