Some embodiments may be associated with a cloud-based computing environment. A centralized multi-tenancy service may include an application interface to receive a query from one of a plurality of applications. A tenant policy store may contain declarative tenant policies, and a tenant policy manager engine may automatically process the received query based on at least one tenant policy. If the received query is not processed successfully, the centralized multi-tenancy service may return an error message to the application via the application interface. If the received query is processed successfully, the centralized multi-tenancy service may exchange information with a multi-tenant service instance (e.g., a multi-tenant database as a service instance) and return a data result to the application via the application interface.