Guantang is an old industrial location in Hong Kong with decades of history. However, it has become an unproductive area with old buildings and industries. people would like to change the situdation according to the survey. Young artists choose the place as it is cheaper than the prosperous part of the city. Besides, the old high-rise building blocked the wind flow and heating island effect is extremely severe in the area. Based on two of the situation. We tend to increase the wind flow and prevent sunshine using green techniques, to create a comfortable environment and attract young people.