Architecture and tourism are inseparable things. In tourism development, planning and design also carried out and generate some architectural design. The architectural product involved a user, who will respond in a certain way towards the architectural object and built environment in general. People design the environment, and the built environment modifies our deportment. It is important taking into consideration the perception, preference, and participation in the design process as the design is a decision making process. Perception is indeed a complex process involves integrating information through our senses, processing it, which implies analyzing the received information and comparing it against several gathered knowledge based on people's characteristics, experience, and psychology, which can affect the preference and participation. This paper addressed the importance and mechanism of community perception, preference, and participation in the tourism and architecture design process. Two case studies are analyzed using a qualitative approach. Through this research, it is indicated that the good perception and preference could generate participation. The participatory design could be a good method for the decision-making process in architourism.