Plan of part of the Domus Transitoria with the later Domus Aurea | |
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| Coordinates | 41°53′24″N12°29′24″E / 41.89000°N 12.49000°E /41.89000; 12.49000 |
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TheDomus Transitoria (House of Passage)[1] wasRoman emperorNero's (r. 54 – 68) first palace damaged or destroyed by theGreat Fire of Rome in 64 AD, and then extended by hisDomus Aurea (or Golden House).

The "domus" estate was intended to connect thePalatine palace with all of the imperial estates that had been acquired in various ways, including theGardens of Maecenas,Horti Lamiani,Horti Lolliani, etc.[2]
According toSuetonius (Nero 31.1):"He built a palace extending all the way from the Palatine to the Esquiline, which at first he called the Domus Transitoria, but when it was burned down shortly after its completion and rebuilt, the Golden House".
It was probably built from AD 60.[3]

One of the main buildings is thought to be on the western side of theOppian Hill under theBaths of Trajan.[4]: 237
The brick walls of the palace were originally covered with marble at the bottom, while the upper parts were frescoed. A portico fronted the domus along the south side. Almost all of the columns, floors and marble walls were removed whenTrajan built his baths (in 104 AD).[4]: 232
The house was built around a bigperistyle withporticos on three sides, while the fourth on the north consisted of acryptoporticus which supported the rear embankment. At the centre, occupied now by a series of long barrel vaults to support the overlying Trajanic baths are the remains of a fountain; on the eastern part is a largenymphaeum that opens to the courtyard.

An elaborate nympheum was unfortunately divided in two by a later wall of Trajan. Surrounded by a portico of four columns it was equipped with a cascading fountain on the bottom, whose water was conveyed into a central basin. On the walls of thegrotto was a mosaic of which a few traces remain within a frame of shells. The lower part of the walls were originally covered in marble.
The decoration of the vault, 10 m (33 ft) high, is preserved only in part where four corner medallions and a central octagon were inserted, the latter partly preserved representing thePolyphemus scene.
Five metres belowHadrian'sTemple of Venus and Roma a sumptuousrotunda belonging to the palace was discovered in 1828, cut through by foundations of theDomus Aurea.[5] The elaborate domed room which interconnected two barrel-vaulted corridors was spectacular architecturally and had marble-lined pools and paving in multicolouredopus sectile, all still largely intact beneath the temple.[6]


The main part of the palace was probably on thePalatine Hill and a large and brilliantly decorated set of rooms has been located in the central part of thePalatine Hill under thePalace of Domitian. This site was excavated in 1721 when considerable damage was done during the excavations. The lower floors contained sunken gardens, two pavilions, a nymphaeum, and an art gallery. Beyond these rooms is a very largelatrine.[7]
In one of these rooms is a rich marble floor found under the oval fountain room of Domitian'sCenatio Iovis, and a rich nymphaeum with marble columns and bronze capitals. Today one corner of the nymphaeum has been rebuilt.
Thecryptoporticus of Nero that connected the palace with the nearby Domus Tiberiana was also part of the complex. It is 130 m long with mosaic floors and elaborate stucco ceiling decoration with vegetal elements and cupids. It lies beneath theHorti Farnesiani along one side of the Domus Tiberiana.[8]
Marble and other parts salvaged from the ruins later became part of theDomus Aurea, Nero's main residence.
Painted ceilings with mythological scenes from the Domus Transitoria, the earliest examples of fourth-style painting, perhaps by the painterFabullus, are displayed in thePalatine Museum.
In 2019 it was announced that this part of the palace will be accessible to the public for the first time in almost 70 years.[9]
Media related toDomus Transitoria at Wikimedia Commons
| Preceded by Domus Aurea | Landmarks of Rome Domus Transitoria | Succeeded by Flavian Palace |