In time of urbanization, trees in cities are getting more and more important. Besides the positive aesthetic effect, they are improving the quality of urban life and the well-being of citizens. In cities, trees are usually surrounded by a tree pit that ensures the supply of water and air. The construction and design of this tree pits is important, especially along roads, because the external impacts are higher. In the context of this master thesis, the effects of different tree pit designs on street trees in the district of Neusiedl am See are analyzed. Based on the results, the various types are evaluated in terms of their function, aesthetics and maintenance. In the course of this work 100 tree pits were taken in the three communities Neusiedl am See, Weiden am See and Frauenkirchen, where five different types of tree pits (planted with shrubs, flowers or grass, covered with bark mulch and open soil) were selected. In addition to a tree environment analysis, the tree condition, the state of the tree pit and maintenance as well as the soil conditions were collected. The results showed that the tree pit design and street level have a significant influence on the trunk state and the soil density. The aesthetic effect and the associated maintenance effort also play a major role in deciding on the tree pit design. Especially freely accessible tree pits have significantly more tree trunk injuries, mainly caused by dog urine and mechanical damage, as planted tree pits with shrubs and flowers. A particularly strong soil compaction was found at open tree pits and pits with grass-herb vegetation. One can say that flower-decked pits give the most satisfying impression aesthetically and show the best results in the ratings. A cover with mulch was also able to achieve good results in lots of analysis. Tree pits with shrubs could only be middle-rated in their function and aesthetics because of the low density of plants.