Frameworks for Co-Working, Co-Living, Apartment Hotels and Short-Term Rentals “Space-as-a-Service” businesses such as co-working, co-living, short-term rental concepts and apartment hotels are becoming increasingly popular for users, operators and — to some extent — for landlords. These models broadly fall into three categories: 1- The landlord-tenant marketplace (e.g. AirBnB, Homelike), whereby the marketplace charges a fee per booking;