Abstract
The community facilities established spontaneously in a new town supplement the community facilities established intentionally and complete the community facilities there. But their spontaneous establishment in a housing area may disturb the housing environment. In order to know how to complete the community facilities with planned and spontaneous facilities to maintain the amenity of the housing area, we researched the trends for generation of these facilities and employed questionnaires on the facility owners' countermeasures in order not to disturb the housing environment in Kouzouji New Town. The results are; 1) there are timelags in the building of the planned facilities and spontaneous facilities, 2) forty percent of spontaneous facilities were made by converting houses to facilities, 3) owners' interest were concentrated on noise control rather than the townscape.