Rational land management is an important element of a properly functioning economic system in a country. Both state administration agencies and local self-government agencies play a crucial role in the decision-making process concerning land management. An effective land information system is an indispensable tool for the implementation of investment projects and development plans. According to the authors of this report, land value maps should become an integral element of this system. Such maps are expected to play an increasingly important role in the determination of the causes and effects of changes in the value of land and property. The present paper focuses on some methodological and practical aspects of land value map compilation. One of the major problems in Poland is a poorly developed land market information system. The concept of a land price monitoring system, as proposed in the paper, may help to solve this problem. The paper also presents the results of a survey concerning land purchaser preferences, paying particular attention to location factors. The spatial distribution of land demand in the city of Olsztyn is presented in a descriptive and graphical form. The process of land value map compilation and its verification for a part of the territory of the city of Olsztyn are also described.