The purpose of this paper is to report the design and construction process of TAIWA-cho health and welfare center, that has the possibility of a general model in the local public welfare facilities. In this case, we organized the supervising group besides the designers. Under the direction of the supervisor, they collaborated and supported the works that designers could not manage sufficiently. We consider that this system for design and construction is very useful in the process of bringing up new-type local public welfare facilities of which design concept has not been confirmed yet.