Each co-owner's share in a common area is proportionate to the floor area of the exclusively-owned area the co-owner owns.
各共有者の持分は、その有する専有部分の床面積の割合による。
The preceding paragraph being the case, if a private common area (excluding one that is an attached building) has a floor area, the floor area of that private common area is to be divided in proportion to the floor area of the exclusive area held by each unit owner who should have common use of that private common area, and this is to be included in the calculation of the floor area of each unit owner's exclusively-owned area.
The floor area referred to in the preceding two paragraphs is calculated as the horizontally projected area of the part that is bounded by the inner lines of the walls and other partitions.
前二項の床面積は、壁その他の区画の内側線で囲まれた部分の水平投影面積による。
The provisions of the preceding three paragraphs do not preclude any provisions to the contrary in the bylaws.
前三項の規定は、規約で別段の定めをすることを妨げない。