sentence: Housing commonly includes detached and semi-detached houses and flats.
sentences_before: Since the beginning of the twentieth century, cities have spread very quickly and spread farther. Transport in the form of trams, buses and cars allows commuting from distant homes to work in the inner city. This led to the growth of the suburbs.
sentences_after: Houses are built farther apart than in the inner city and there is often space for gardens and parks.
concept_name: housing
headings: Suburb
categories: Cities