Climate change and rapid urbanization have caused several vulnerabilities for the global food system, and alternative farming methods are required to solve this ongoing crisis. Zero acreage farming can be a sustainable farming a to geoponics, as it is developing worldwide, and in Stockholm, this provides an opportunity to produce food year-round. In addition to that, it makes the food system more resilient and increases food security. The thesis aimed to explore the possibilities of zero-acreage farming on household rooftops in Stockholm and achieve the demand for tomatoes with an aeroponics growing system. With the help of GIS software, 4269 flat and slant roofs with a total available area of 3815121 m2 are found to implement a greenhouse. The GIS study shows that the south sector had the better potential for more extensive operations considering buildings, more population, and broader roads where transportation will be made more accessible. The central sector had the least potential for zero acreage farming because those regions have heritage values and narrow streets, making the transportation and supply chain difficult. The result of the aeroponics growing system reveals that the Stockholm tomato demand can be achieved in a 12780 m2 area with 95% water saving and 90% less global warming potential (GWP)compared to geoponics or conventional farming. Further on, this thesis suggests aeroponics as a sustainable alternative way of growing crops to minimize the impact on the environment caused by geoponics over the centuries.