The area of the city district Trnje has been inhabited since Roman times, and the largest increase in population was recorded at the beginning of the 20th century at the time of industrialization when it was transformed from a rural into a working district of illegally erected buildings. Greenery in cities is of great importance for biodiversity, and the selection of plant species and their maintenance is in line with the climate and relief of a particular area; and with the needs, time, and financial capabilities of garden owners. Although landscaping significantly affects the image of the city, there are no regulations to determine their appearance. The aim of this work was to use Geoportal to measure plot areas, their percentage of development and paving, create inventory of plant species found in the front gardens of the city district of Trnje, determine their taxonimic affiliation, classify plant species according to their presence in the zones, evaluate the arrangement of gardens, and assess the presence of garden elements. During the month of March to the end of June 2019, a field research was conducted on 34 front gardens in the area of the city district of Trnje. Streets covered by the survery: Križna cesta, Drinska ulica and Ulica II. Trnjanski nasip. The analysis revealed that the largest garden was at Drinska ulica with size of 656,83 m2, and the smallest was at Križna cesta with size of 4,89 m2. The highest percentage of coverage was at Križna cesta in the amount of 63%. The most common zone in which plant species are located is the central zone. The most common species is Rosa hybrida L. The most common type of fence in all surveyed gardens is metal, and it is located in 30 front gardens, among other gardenelements there were waste bins, sculptures and flower pots.