page_title: Ancient Roman architecture
section_title: Insula
hierarchical_section_title: Ancient Roman architecture / Building types / Insula
caption_attribution_description: Ostian Insula; Domus di Giove e Ganimede (I,IV,2)
context_page_description: Ancient Roman architecture adopted the external language of classical Greek architecture for the purposes of the ancient Romans, but was different from Greek buildings, becoming a new architectural style. The two styles are often considered one body of classical architecture. Roman architecture flourished in the Roman Republic and even more so under the Empire, when the great majority of surviving buildings were constructed. It used new materials, particularly Roman concrete, and newer technologies such as the arch and the dome to make buildings that were typically strong and well-engineered. Large numbers remain in some form across the empire, sometimes complete and still in use to this day.
  Roman architecture covers the period from the establishment of the Roman Republic in 509 BC to about the 4th century AD, after which it becomes reclassified as Late Antique or Byzantine architecture. Almost no substantial examples survive from before about 100 BC, and most of the major survivals are from the later empire, after about 100 AD.
context_section_description: Multi-story apartment blocks called insulae catered to a range of residential needs. The cheapest rooms were at the top owing to the inability to escape in the event of a fire and the lack of piped water. Windows were mostly small, facing the street, with iron security bars. Insulae were often dangerous, unhealthy, and prone to fires because of overcrowding and haphazard cooking arrangements. There are examples in the Roman port town of Ostia, that date back to the reign of Trajan, but they seem to have been found only in Rome and a few other places. Elsewhere writers report them as something remarkable, but Livy and Vituvius refer to them in Rome. External walls were in "Opus Reticulatum" and interiors in "Opus Incertum", which would then be plastered and sometimes painted.
  To lighten up the small dark rooms, tenants able to afford a degree of painted colourful murals on the walls. Examples have been found of jungle scenes with wild animals and exotic plants. Imitation windows (trompe l'oeil) were sometimes painted to make the rooms seem less confined.
  Ancient Rome had elaborate and luxurious houses owned by the elite. The average house, or in cities apartment, of a commoner or plebe did not contain many luxuries. The domus, or single-family residence, was only for the well-off in Rome, with most having a layout of the closed unit, consisting of one or two rooms. Between 312 and 315 A.D. Rome had 1781 domus and 44,850 of insulae.
  Insulae have been the subject of great debate for historians of Roman culture, defining the various meanings of the word. Insula was a word used to describe apartment buildings, or the apartments themselves, meaning apartment, or inhabitable room, demonstrating just how small apartments for Plebes were. Urban divisions were originally street blocks, and later began to divide into smaller divisions, the word insula referring to both blocks and smaller divisions. The insula contained cenacula, tabernae, storage rooms under the stairs, and lower floor shops. Another type of housing unit for Plebes was a cenaculum, an apartment, divided into three individual rooms: cubiculum, exedra, and medianum. Common Roman apartments were mainly masses of smaller and larger structures, many with narrow balconies that present mysteries as to their use, having no doors to access them, and they lacked the excessive decoration and display of wealth that aristocrats’ houses contained. Luxury in houses was not common, as the life of the average person did not consist of being in their houses, as they instead would go to public baths, and engage in other communal activities.
caption: Insula in Ostia Antica
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