Architectural and Urban Conservation is an essential composite of the conservation process ะ emphasizing in both physical and cultural aspects. Tourism is one major economic activities that has impacts on physical and cultural aspects. The study is combination of conservation and tourism concepts: on the basis that tourism can support the achievement of “Conservation” “Bangrak”, one of historic areas in Bangkok, is qualified and valuable for conservation and development. The geographical scope of the study was 0.175 sq.km. The area covered old buildings and communities with original living styles. Historically speaking, Bangrak was an outstanding commercial area and inhabited by 3 different ethnic and religious groups, which possessed their own culture. The analysis of site-observation indicated physical and cultural importance of the study area, as well as its potential for tourism development. Consequently, the study emphasized conservation for tourism. However, due to the fact that tourism produces impacts on physical aspects and lifestyle of the community, the preliminary study for tourism development of the study area was done, and followed by types of tourism resources of the study area. The major outcome for the appropriate tourism character within the study area was “Cultural tourism”. Finally, the study recommended the policies for conservation and sustainable development both physical and cultural aspects, based on architectural and urban conservation, cultural tourism and sustainable development.