In the Barrie area, we have several adult communities; most notable are Hoe Doe Valley, Big Cedar Estates and Sandy Cove Acres. All of these communities are comprised of communal areas and, generally, mobile (or otherwise movable) homes. Sometimes, the land is owned; sometimes, there is a lease over the land for many years.
In Sandy Cove, for example, the properties are easy to maintain as the land is not owned, and the owner of the home pays a small rental fee each month to cover taxes, insurance, and maintenance of communal building.
These types of properties are not for everyone, but are ideal for people who are downsizing and looking to be in a community of people at their life stage.