What are the impacts, positive or negative, of rooftop gardens in urban areas and should they be started? The investigation was initiated in order to determine the real impacts of rooftop gardens in urban garden areas on the surrounding or affected communities as well as on the environment itself. Through this investigation, the effectiveness of hanging gardens, its costs and benefits and its sustainability (short or long term) will be evaluated. A roof garden is any garden created on the roof of a building. These gardens are visually attractive and also provide a means of controlling overall heat absorption, a means of providing food (if it is a vegetable garden), an architectural improvement, and recreational opportunities. Growing food in these gardens is known as "rooftop farming." Green spaces in cities are used as methods to improve the quality of life of residents: they have been implemented to serve as a relaxation area and to create a more aesthetically pleasing urban expanse. On a smaller scale, the possibility of rooftop farming is becoming increasingly popular around the world and could represent a potential source of food for urban communities. Increased vegetation can lead to increased biodiversity and allow ecosystems to thrive where they had previously been removed or destroyed to make room for concrete jungles. There are many monuments in ancient history involving rooftop gardens and the functioning of these gardens, for example, the medieval Egyptian city of Fustat which had many skyscrapers with hanging gardens above, along with water wheels powered by oxen for irrigation. Urban rooftop gardening is practiced, as far as South Africa is concerned, in the cities of Cape Town, Johannesburg, Pretoria and... half of the paper sources." – Archbishop Emeritus Desmond Tutu, 2009. Limitations and improvementsThe limitations addressed in this investigation were the inability to ascertain correct figures or raw data on the real differences made by rooftop gardens regarding temperature regulation and reduction and energy costs. Therefore the evidence and conclusions are based more on social impacts and on general impacts of rooftop gardens that have been recorded around the world Possible improvements for the investigation could be to explore the versatility of green spaces such as vertical greenery (green walls) or urban parks such as Green Point Park in Cape Town. for example, including primary research via a questionnaire involving communities while obtaining their personal input could benefit the investigation as well as proving or disproving the hypothesis from a different perspective..