Allotment gardening is a leisure and self-supply activity carried out on rented or otherwise acquired land. Originally, allotment gardening had to do with the existential needs of the inhabitants. However, today it is meant to satisfy social, environmental and other needs of the urban population, and constitutes an important element of spatial planning for the development of settlements. The main purpose of this thesis is to analyse the state of the activity of allotment gardening in the area of the Municipality of Kranj, how to plan the development of this activity and which supplementary rules are envisaged by by-laws in order to regulate it. Based on the review of the relevant literature and data, good practice examples and information obtained from the city administration and in the field, including the analysis of the actual situation, we have defined the organisational solutions and guidelines for the development of allotment gardening in the area of the Municipality. In the introductory part, the Master’s thesis outlines the significance and the characteristics of allotment gardens, the aspects of their development, as well as their linkages to self-sufficient supply and the spending of leisure-time. We came to the conclusion that allotment gardens are often spatially embedded into the surroundings upon the initiative of the inhabitants, arbitrarily and informally, even contrary to the provisions of spatial acts, and that garden maintenance and development is left to the inhabitants, which is why some allotment gardens may seem disturbing and stick out of the surroundings. The thesis reveals that similar characteristics may also be attributed to allotment gardening in the area of the Municipality of Kranj. The Municipality is responsible for spatial organisation and management; therefore, with the proper incentive and promotion of allotment gardening, the Municipality is the also one that can contribute to the preservation of allotment gardening by appropriately regulating and planning it in the scope of its powers and competences.