This article analyses the issue of the inadequacy between the results of preliminary measurements performed during the land reform and results of cadastral measurements. The aim of the research is to analyse the change of areas of land parcels of Sakiai district, the mistakes which were made during the measurements and their causes, as well as to make the comparison between preliminary and cadastral measurements. The research methods are as follows: the review and analysis of scientific literature, the analysis of statistical data, the comparative analysis and the method of graphical modelling. The total area of analysed land parcels is 282718 m2. During the research, while comparing the preliminary data and the data of the measurements of land parcels obtained while performing cadastral measurements, it was established that an average increase of areas of land parcels is 0.0223 ha, decrease is 0.0034 ha, the total perimeter of all land parcels decreased by 24.9 m, the total area of arable land in land parcels increased by 0.1390 ha due to the increase of areas of land parcels, new mapped lands: tree and shrub plantations, grasslands, gardens. The average shift of turning points of land parcel boundaries in the locality after the performed cadastral measurements is 2.64 m. What is more, by applying some formulae, the accuracy of calculation of areas of land parcels was determined. It turned out that land parcels, which cover 96% of the area of the analysed land parcels, changed to the maximum permissible error of areas, and 4% exceeded the maximum permissible error. According to the data presented by the National Land Service it was established that 15% of the submitted cadastral files are not accepted. The most common causes are an inadequacy of land parcel boundaries to the documents of the planning of territories or the land holding projects (44%), mistakes in the preparation of files of cadastral data of land parcel, in the completing (23%), in the preparation of the land parcel plan (21%), and while filling in the form of land parcel cadastral data (13%).

From the old times Lithuanian manors were the main centres of diplomacy, administration and culture. The applied land reforms, war and post-war periods and changing regimes altered the structures of the manors; their owners and users changed as well. The number of homesteads of manors and their territory highly decreased. During various periods of time more than 150 manors were present in the current territory of Panevėžys district municipality. The aim of the research is to analyse the land use of the least researched homesteads of former manors in 1923 and 2016. Six homesteads of former manors that are located in Panevėžys district have been analysed. The research has revealed that a great amount of small land lots aggravates the farming conditions and does not allow the rational land use. Certainly, this problem is solved partially by renting or selling the land to the owners of the adjacent land lots. Land consolidation would help to pass beneficial decisions for the land use. In the recent years, due to the initiatives of state institutions and individual people a fair part of homesteads of manors are being rebuilt and adjusted to the use of society.