The legal basis for the modernization of the land and building registry is the Act of 17 May 1989 Geodetic and Cartographic Law, which determines how the procedure of update and modification of data, to the form which is in accordance with applicable regulations, is carried out. Maintaining of the proper degree of timeliness and reliability of the registry data is important because of the prospect of integration with the Databases of Topographic Objects (BDOT) and Geodetic Registry of Infrastructural Network (GESUT), in the project of construction of the Real Estate Integrated Information System (ZSIN). Furthermore, the land and building registry (EGiB) plays a significant role in the implementation of most of the processes of real estate management.The aim of the publication is to verify the compliance of the registry data regarding the area and the course of the borders of plots before and after modernization, with the real state in the field. The complex survey of plots before and after modernization was performed to assess the effects of modernization, taking into account the reliability of geodetic works and the timeliness of the registry data. The present study involved updating the course of borders and areas of the plots used ...
