Roman brick architecture inside the Roman Houses of the Caelian Hill in Rome
Underground Rome · Places · 12

Roman Houses of the
Caelian Hill

Beneath the Basilica of Santi Giovanni e Paolo, twenty painted rooms preserve the transformation of a Roman neighbourhood across more than four centuries of urban history.
Caelian Hill
1st–4th Century AD
Domestic Archaeology
Present Basilica
Late Antiquity
Roman Houses
Ancient Street
01 The Place
Clivo di Scauro
Caelian Hill
Rome

A neighbourhood preserved inside later architecture.

The Case Romane del Celio are not the remains of a single Roman house.

The archaeological complex contains twenty painted rooms belonging to at least five buildings constructed and transformed between the first and fourth centuries AD.

Shops, storage spaces, residential rooms and a private bathing installation became part of increasingly complex domestic architecture as the site changed through time.

Later Christian use added another phase to the sequence, before the construction of the basilica preserved much of the earlier architecture below.

Entrance to the Case Romane del Celio on the Clivo di Scauro in Rome
Case Romane del Celio · Clivo di Scauro
02 Rediscovery

Centuries below the basilica.

1887 Archaeological Rediscovery

The underground complex was rediscovered in 1887 by Father Germano di San Stanislao, then rector of the Basilica of Santi Giovanni e Paolo.

What emerged was not an isolated chamber but an extensive sequence of Roman buildings whose rooms, decoration and later alterations had survived beneath the church.

03 Archaeological Sequence

Architecture changed as the neighbourhood changed.

The surviving complex records successive reorganisations rather than one fixed Roman residence.

Different phases altered rooms, circulation and use, while retaining parts of earlier structures.

01
1st Century AD

Earlier Buildings

Commercial and storage spaces formed part of the developed urban fabric of the Caelian Hill.

02
Early 2nd Century AD

Domus & Balneum

A residence developed on two levels and included a private bathing installation.

03
Late 3rd–Early 4th Century

New Domus

Earlier structures were incorporated into a new and more elaborate residential complex.

04
Mid 4th Century

Titulus

The later sequence became connected with Christian use and the religious history of the site.

04 Built Fabric

Walls record decisions made centuries apart.

The masonry makes the sequence of construction, closure and reuse physically visible.

Openings were modified, spaces were joined or separated and earlier walls became structural elements within later buildings.

Buildings At least five structures contribute to the surviving complex.
Rooms Twenty painted underground environments are preserved.
Chronology The principal archaeological sequence extends from the first to the fourth century AD.
Ancient masonry inside the Roman Houses of the Caelian Hill
Roman Houses · Surviving Architecture
05 Painted Interiors

Decoration survives with the architecture.

The exceptional value of the complex lies not only in its walls, but in the painted surfaces preserved inside them.

Figurative scenes, ornamental schemes, birds, vegetation and architectural decoration provide another source for understanding the character and changing use of the rooms.

Roman wall paintings with figures, birds and vegetation at the Case Romane del Celio
Painted Interior · Case Romane del Celio
Ancient painted decoration inside the Roman Houses of the Caelian Hill
Surviving Wall Decoration
Decorated archaeological room in the Case Romane del Celio
Archaeological Interior
Underground room inside the Case Romane del Celio archaeological complex
Case Romane del Celio · Underground Interior
06 The Complex

One site. Many rooms. Several buildings.

20 Painted Underground Rooms

Reading the complex requires moving beyond the idea of a single domus.

The twenty surviving rooms belong to a sequence of structures that changed both physically and functionally. The archaeological relationships between them are more important than any one room viewed in isolation.

08 Late Antique Transformation

Domestic architecture acquired a new religious meaning.

By the fourth century, the history of the complex had become connected with Christian worship.

Tradition identifies the site with Saints John and Paul, who were believed to have lived, suffered martyrdom and been buried here.

Archaeologically, the important point is the transformation itself: spaces created within Roman domestic architecture entered a new phase of use and interpretation during Late Antiquity.

Painted archaeological room associated with the later history of the Case Romane del Celio
Case Romane del Celio · Later Phase
09 Reading the Site

A building can change without disappearing.

The Case Romane del Celio preserve transformation rather than a frozen moment of Roman life.

Earlier walls survived because later occupants continued to use, modify and incorporate them.

Construction New architecture was inserted into an already developed urban area.
Adaptation Existing rooms and structures were reorganised for different uses.
Decoration Painted surfaces help distinguish the character and chronology of individual phases.
Continuity Later religious use preserved and reinterpreted parts of the earlier domestic complex.
10 Access

An archaeological complex open to visitors.

Open

The Case Romane del Celio are accessible from the Clivo di Scauro beneath the Basilica of Santi Giovanni e Paolo.

Visitor schedules and ticketing arrangements can change. Check the current official information before planning a visit or including the site in an itinerary.

Site Case Romane del Celio.
Entrance Clivo di Scauro, Caelian Hill, Rome.
Archaeology Twenty painted rooms belonging to at least five buildings dated between the first and fourth centuries AD.
Planning Check current opening days, hours and ticketing conditions before visiting.
Check Official Visitor Information →
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