The doctoral dissertations of the former Helsinki University of Technology (TKK) and Aalto University Schools of Technology (CHEM, ELEC, ENG, SCI) published in electronic format are available in the electronic publications archive of Aalto University - Aaltodoc.

Consolidation of Jointly Owned Water Areas

Pekka Vilska

Dissertation for the degree of Doctor of Science in Technology to be presented with due permission of the Department of Surveying for public examination and debate in Auditorium E at Helsinki University of Technology (Espoo, Finland) on the 24th of May, 2006, at 12 noon.

Dissertation in PDF format (ISBN 951-22-8155-4)   [3570 KB]
Dissertation is also available in print (ISBN 951-48-0190-3)

Note: The language of the dissertation is Finnish.


The water areas in Finland may be divided into state owned public water areas and private water areas. The private water areas are owned either privately or jointly. Jointly owned water area is a cadastral unit belonging to two or several real properties according to certain share of ownership. In January 2004 there were slightly more than 20.000 jointly owned water areas in the cadastre.

In many of the reports prepared by the Finnish Game and Fisheries Research Institute the small size and the fragmentation of water areas are hindrances to their use and maintenance. The distribution of water areas into cadastral units is outlined in the study. The joint property management associations of the water areas in the province of South Savo were classified on the grounds of their size and the amount of participating property units in order to discover the most fragmented municipalities.

The study describes the progress of managing the jointly owned water areas and the consolidation procedure of the water areas with a functional diagram and examples. The factors influencing the consolidation decision are formed on the grounds of general theories and circumstances occurring at the proceedings.

The study outlines the factors contributing to the consolidation of the joint property management associations formed by partners in the jointly owned water areas, and the factors preventing the consolidation. The research material consists of the 73 consolidations implemented in Finland in 1999 to 2003, the 280 joint property management associations, and the 37 000 participating property units involved. The factors preventing consolidation were also studied considering 50 joint property management associations with a negative decision.

Factors contributing to consolidation are previous co-operation among the joint property management associations and their degree of organisation. It will become more difficult when 1 to 4 partners have two thirds of the shares minimum, or the area per partner exceeds six hectares.

The problems with consolidation are the launching of the project among unorganised joint property management associations, the multi-phase proceedings with potential to various appealing and rectification, and the high price of the procedure. The problems will decrease when the cadastral survey procedure is developed and co-operation is increased.

Keywords: jointly owned water area, consolidation, joint property management association

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© 2006 Helsinki University of Technology

Last update 2011-05-26