What is communal?
communal is 1). Belonging to, or used by, a group of people rather than a single person. For example, communal open space is useable public open space for recreation and relaxation of residents of a development that is under the control of a body corporate. 2). Of, or related to a commune, where all means of production and services are held in common. The collective unit takes responsibility for meeting the needs of its members.
source: A GLOSSARY OF TERMS FOR COMMUNITY HEALTH CARE AND SERVICES FOR OLDER PERSONS. World Health Organization, 2004.