Abstract
This paper explores the laws and other legal acts related to the Croatian 3D cadastre with an emphasis on those which relate to interests in strata, spatial planning, and other regulations that are valid or were valid on Croatian territory. The effects of the application of these regulations on the present situation of registration in cadastre and land register were considered. This paper also explores current legal, institutional, and technical solutions implemented in the Croatian Land Administration System and the possibilities for its upgrade to 3D cadastre. Implementation of any technological option to establish a 3D cadastre is tightly related to legislation. Hence, legislation and technological options are considered to find solutions that will be possible to implement. One suggestion presented in this paper was to use other sources of 3D data such as topographic signs or symbols used to represent topographic objects on 2D maps. In combination with other geodetic and cartographic products, useful information can be obtained, often quite relevant to provide a reference context for a 3D cadastre. Topographic signs on topographic maps and on other geodetic products provide a representation of complex real-world situations (tunnels, bridges, overpasses etc.) that are not usually presented on cadastral maps. This paper presents the possibility of utilizing those topographic signs to achieve the first steps towards establishing a 3D cadastre. Furthermore, this study proposes the establishment of a 3D Multipurpose Land Administration System as the most efficient system of land administration in a time when spatial information is easier to obtain than ever before and traditional real estate registers are subject to frequent and demanding changes.
Highlights
A cadastre is generally a parcel-based, up-to-date land information system containing records of real properties and interests
Their establishment has proven to be quite demanding, and it is difficult to find efficient multipurpose cadastres in any country. It was only the development of information technologies that really opened up the possibilities for the development of Multipurpose Land Administration Systems (MLAS), as currently, the differences between the systems for registering land and the systems for registering land tenure do not allow a unified approach between countries [1]
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Summary
A cadastre is generally a parcel-based, up-to-date land information system containing records of real properties and interests (i.e., rights, restrictions and responsibilities). A more extensive use of land administration information began with the development of multipurpose cadastres Their establishment has proven to be quite demanding, and it is difficult to find efficient multipurpose cadastres in any country. Countries have to work on improving the information flow by collecting and maintaining 3D cadastral data to keep up with the growing requirements, especially those related to efficient land administration. Amongst other things, the answers to these questions are given and elaborated from a Croatian perspective These findings serve as a starting point and general overview of the Croatian Land Administration System. The aim of this paper is to show the possibilities of implementing a 3D cadastre by using the data already registered in the existing official registers and databases that are part of the Croatian Land Administration System.
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