We live in a co-op that offers subsidy and is similar to renting but we run the place and can not profit. There is another type similar to strata but you own a share in the building not the square feet you call your home. And the third is like what you are speaking of called co-housing co-operative. There must be a common, communal piece that brings the community together in co-housing. Both of those types of co-ops you purchase into.