This paper aims to investigate effective use of district plan and community rules for dwelling environment management by community associations. Firstly, the paper proposed a theoretical frame work of combined use of district plan and community rules. There are four types of combination according to nature of environmental factors and standards, binding and predictability of rules. Then, the paper applied the frame on three cases of housing estates in Yokohama city. The case study pointed out that it is important to prepare combination of rules according to clarity and diversity of cityscape and dwelling environment..
