This prototype provides a way of generating the buildings in a particular way which can give the architect a reference prototype. Architects can control the output of the whole process by changing the input parameter such as the maximum area of each small site, the optimization factor of road optimization, the radius of the circle, the plot ratio of the site, the height of building the direction of the sunlight. Also after baking the output into Rhino, architects can still work on adjust the output by their hand to make building they have to be more complex.