We make clear the actual condition of non-dwelling-type' s condominium buildings locating in Chiyoda and Chuou Wards of Tokyo Metropolis. Results are summarized as follows. 1) They are increasing every year and reached 30% of total floor area of the whole buildings in Chiyoda Ward. 2) They are constituted by a small numbers of ownership units and proprietors. 3) On the other hand large-scale condominium buildings are located in the C.B.D.. 4) They are a mixture having business function and residential function, and play a part as urban residence. 5) They have narrow access spaces for common use in case of vertically divided ownerships.
