One of the primary measures of the land reform is to create the national land registry and related land information database, which can be formed only through a complete inventory of land. This article analyses land inventory data in the current stage of land cadastre functioning and development of land relations, as well as discusses justification of organizational and legislative preconditions for land inventory in Ukraine.

Cadastral measurement provides cadastral data of a parcel determining its boundaries. In theory, based on the legislative regulations, the boundaries of adjacent parcels should not cross the boundaries of parcels, therefore an overlap of parcels is not possible. Yet the question arises if this requirement is met. The study has been conducted to examine the assumption regarding the possible overlap of adjacent parcels when the parcels abut a road. The study object consists of 24 parcels randomly selected from Kėdainiai district municipality, Lithuania which abut the following roads of national significance: road No. 144 (Jonava – Kėdainiai – Šeduva) and road No. 195 (Kėdainiai – Krekenava – Panevėžys) as well as regional road No. 2007 (Akademija – Šlapberžė – Berželė). The cadastral measurements of the selected roads were carried out in the period of 2013–2014. During the study, the analysis of the conditions of overlapping of boundaries and the areas of the overlap have been carried out. The results of the study indicate that the boundary accuracy of parcels is inaccurate in relation to road boundaries.

For millennia, the geodesic industry has improved methods and technologies for obtaining information on the location of objects on the Earth's surface, whose key task has been to improve the accuracy and reliability of measurements. At the same time, in recent decades, the rapid development of positioning technologies based on satellite radio navigation systems has created prerequisites for a situation where the acceptable accuracy of determining the geodetic characteristics of real estate becomes quite affordable even when using non-specialized geodetic equipment, including personal mobile devices. The article shows that the error in determining the area of land for registration of rights to real estate has its own “costˮ, which depends on the value of real estate in the area of survey. By the example of model sites, it is shown that further improvement of the accuracy of engineering surveying to determine the spatial characteristics of real estate objects would be economically feasible only if the cost of geodetic surveys (including the cost of purchasing new geodetic equipment, payment for labour of specially trained engineers, additional technical services and etc.) will not exceed the “cost of errorˮ to determine the area of the site. Using the example of Ukraine, it is shown that the most accurate geodetic surveys (determining turning points of land borders with an accuracy of more than 0.02 m) are economically feasible only when the market value of a land plot exceeds USD 208 per square meter.

The article defines that the land inventory allows to form land plots of state and communal property, to fill the State Land Cadastre with information about objects and subjects of land relations and to eliminate existing errors. The aim of the article is to improve the procedure of conducting the land inventory in Ukraine, taking into account modern technologies within the current regulatory framework. The methodology of land inventory using modern technologies has been developed, which includes the following components: surveying of the inventory object, topographic and geodetic works, vectorization of its territory using remote sensing data, project works, creation of a consolidated inventory plan, development of technical documentation, its state expertise, adjustment and approval, entering data into the State Land Cadastre. It is established that an effective method of implementation of topographic and geodetic works during updating of the cartographic materials is a combined method, which includes the use of aerial images with simultaneous geodetic surveying of complex areas. The use of geoinformation technologies and remote sensing data is allowed to optimize the duration and frequency of land inventory. In particular, the classification of land should be performed in the attribute tables. Ways to solve problems of protection and rational use of the lands of the inventory object have been developed. They include registration of land plots without cadastral numbers; control of compliance of land and environmental legislation, taking into account the results of land inventory for updating statistical cadastral information and making changes of the State Land Cadastre data.