(1) The facility must provide one or more rooms designated for resident dining and activities that is:

(a) Well lighted;

(b) Well ventilated;

(c) Adequately furnished;

(d) Large enough to accommodate all residents; and

(e) Large enough to accommodate all resident activities.

(2) The facility must design space for dining rooms, dayrooms, and activity areas for resident convenience and comfort and to provide a homelike environment. The facility must:

(a) Ensure these rooms or areas are exterior rooms with windows that have a maximum sill height of thirty-six inches;

(b) Provide space for dining, day use, and activities with a minimum of one hundred fifty square feet or combined total of thirty square feet for each licensed bed, whichever is greater;

(c) Design any multipurpose rooms to prevent program interference with each other; and

(d) Provide adjoining or adjacent storage spaces for all activity and recreational equipment and supplies.