The traditional elite and the very wealthy lived in a "domus", a large single-family residence, but the two kinds of housing were intermingled in the city and not segregated into separate neighborhoods. The ground-level floor of the "insula" was used for "tabernae", shops and businesses, with living spaces above. Like modern apartment buildings, an "insula" might have a name, usually referring to the owner of the building. The owners of these buildings were typically wealthy Romans and even those in the Senate. It was also possible for an "insula" to be owned by several people, such as Cicero, who owned a one-eighth share of an "insula" and presumably took in one-eighth of its revenue. The inhabitants of the "insula" paid rent to secure their accommodation.