Kao Seng has been selected to be a pilot community to work on 'Baan Man Kong Project' , a nation wide programme of city wide community driven upgrading building secure community housing with local partnership. CASE was assigned by CODI (Community Organisation Development Institute) to work on this project. Although this community is considered a well organized one, we still hesitated because of its complexity. Anyhow CASE started working there by collecting all physical information needed. Kao Seng is a big community comprised of 480 families squeezed on a 26 rais (around 13 acres) land of a government organisation. The people of Kao Seng have been living here for more than 45 years partly illegally as they were evicted once before from somewhere else and the government just thrown them to this exist site. Kao Seng community has been divided by the people into 5 zones to make it easier to organize. Even with 5 zones, we still though that it was still too big to work with. Kao Seng is like a small country which has quite clear hierarchy. There are groups of 'political' people, rich, poor, middle class and so on and these groups are in definite areas although they are all connected in many ways. Like in one country, poor does not have much influence in any aspect. Their voice is always silence. This encouraged us to work with a smaller group than 5 zones. Working with grass roots is always our concept even in a community level! To divide each zone into small groups, first we just looked at physical conditions such as circulation systems and etc. to form a cluster then we moved to the actual site to work with the people. This leaded to discussions about who should be with what group, this was a good chance to observe their social relationships. At the end we formed 33 groups concerning both physical and social conditions. Working in a small group had allowed the people, especially the poor, to speak out what the problems really are and how to solve them properly without any pressure. We used some similare cases beautifully presented to compare with Kao Seng in order to encourage people to think of different/constructive ways to improved their area. Local materials , existing resources and skills had been taken into account naturally. This methodology worked well. After 3 months we were able to put 33 improvement plans together to create a major look of Kao Seng community improvement plan. At the moment Kao Seng is implementing their plan. Although many problems have occurred during the process, they are still working. Problems are fun and useful in some way. We are now visiting the community from time to time to enjoy their success and also problems!