This paper aims to report on about the space constitution of "the plan housing development" and relations of the play appearance of the child. Field observation about the outdoor activity of the child is to investigate it, and they arrive. There is spatial characteristic there with social characteristics such as a joint ownership part and the building allocation patterns inside and outside the building, the high population density. I think that it forms the characteristic of the amusement place of the child. The house ridge placement of the plan housing development is divided into parallel type and box type and tower type. There controls traffic by a block unit, and it may be said that it becomes the play place that the movement space is safe, and is attractive. Small groups disperse with the parallelism type, tower type and surround many plays and tend to perform the play that large-scale groups are few with the model at the place where open spaces are few. By the characteristic of the play place judging from difference in the building allocation patterns, a difference was found between the parallel model and the box model to a tower type.
