Largest area of Roman mosaic found in London for over 50 years uncovered near The Shard

Museum of London Archaeology—Archaeologists from MOLA (Museum of London Archaeology) have uncovered an incredibly well-preserved mosaic that once decorated the floor of a Roman dining room. Discovered a stone’s throw away from The Shard, experts have determined this to be the largest area of Roman mosaic found in London for over 50 years. Excavations on the site have been taking place ahead of the construction of The Liberty of Southwark, a mixed-use scheme that is being jointly developed by regeneration specialist U+I (now owned by Landsec) and Transport for London (TfL). Once completed, the Liberty of Southwark will provide new homes, shops, retail and workspace.

The recently uncovered mosaic includes two highly-decorated panels made up of small, colored tiles set within a red tessellated floor. The largest panel shows large, colorful flowers surrounded by bands of intertwining strands – a motif known as a guilloche. There are also lotus flowers and several different geometric elements, including a pattern known as Solomon’s knot, made of two interlaced loops. Dr David Neal, former archaeologist with English Heritage and leading expert in Roman mosaic, has attributed this design to the ‘Acanthus group’ – a team of mosaicists working in London who developed their own unique local style.

The smaller panel has a simpler design, with two Solomon’s knots, two stylized flowers and striking geometric motifs in red, white and black. This has an almost exact parallel found in Trier, Germany, and the same mosaicists were likely at work in both places. It provides exciting evidence for traveling Roman artisans at work in London.

The mosaic was set in a large room, currently interpreted as a dining room, which the Romans called a triclinium. It would have contained dining couches, where people would recline to eat. From these, guests could gaze at the beautiful flooring whilst enjoying their food and drink. The walls of this room were brightly painted, and fragments of colorful wall plaster have been found on the site. 

MOLA Site Supervisor, Antonietta Lerz, says: “This is a once-in-a-lifetime find in London. It has been a privilege to work on such a large site where the Roman archaeology is largely undisturbed by later activity—when the first flashes of color started to emerge through the soil everyone on site was very excited!” 

While the largest mosaic panel can be dated to the late 2nd to early 3rd century AD, the room was clearly in use for a longer period of time. Astonishingly, traces of an earlier mosaic underneath the one currently visible have been identified. This shows the room was refurbished over the years, perhaps to make way for the latest trends.

The dining room might have been part of a Roman mansio – an upmarket ‘motel’ offering accommodation, stabling, and dining facilities for state couriers and officials traveling to and from London. Given the size of the dining room and its lavish decoration, it is believed that only high-ranking officers and their guests would have used this space. The complete footprint of the building is still being uncovered, but current findings suggest this was a very large complex, with multiple rooms and corridors surrounding a central courtyard.

It was ideally located on the outskirts of Roman Londinium, an area centered on the north bank of the Thames and roughly corresponding to the modern City of London. The complex was built by the river crossing that led into the city and not far from the main road connecting London to other important centers in south-eastern Britain, including Canterbury and the cross-channel port of Dover. As such, it provided excellent transport links for visiting dignitaries.

Neighboring the mansio, archaeologists have identified another large Roman building, likely to have been the private residence of a wealthy individual or family. Traces of lavishly painted walls, terrazzo-style and mosaic floors, coins, jewelry and decorated bone hairpins all testify to the level of wealth enjoyed by the people living in this area 2,000 years ago.

Excavations on this site have been taking place as part of the wider regeneration of the area, set to be completed in 2024 with the opening of The Liberty of Southwark. This new development will sit between Southwark Street, Redcross Way and Union Street, offering contemporary workspace, 36 new homes, including 50% affordable housing, along with shops and restaurants. The scheme will also create new pedestrian routes, reinstating some of the medieval yards and lanes of historic Southwark. 

The scheme has been designed by local architects Allies and Morrison as a varied collection of contemporary brick buildings, sensitive to the scale of their surroundings and full of references to the Victorian industrial and commercial architecture of the area. 15 Southwark Street, which dates from the 1860s, will also be restored as part of the development. The homes, commercial opportunities and public realm improvements provided by the scheme will become an important part of the community’s present fabric, without forgetting its past.

The excavation has also provided new training opportunities. MOLA, in partnership with Keltbray and TfL, delivered a two-week ‘Get Into Archaeology’ access program for Londoners interested in learning more about construction and the work of professional archaeologists.

Henrietta Nowne, Senior Development Manager, U+I, said: “The Liberty of Southwark site has a rich history, but we never expected a find on this scale or significance. We are committed to celebrating the heritage of all of our regeneration sites, so it’s brilliant that we’ve been able to unearth a beautiful and culturally-important specimen in central London that will be now preserved so that it can be enjoyed by generations to come.”

Puja Jain, Senior Property Developer at TfL, said: “This is a very exciting finding that illustrates the rich and complex history of this site and London as a whole. This valuable work to discover and preserve London’s history is a key part of our long-term development process, which has already given a number of people the chance to learn more about archaeology. On dozens of sites across London, we are working with world-leading professionals to preserve the heritage of London whilst bringing forward the homes and jobs that London needs to continue to thrive into the future.”

The mosaics will be carefully recorded and assessed by an expert team of conservators. They will then be lifted and transported off-site, enabling more detailed conservation work to take place. Excitingly this will offer the opportunity to investigate the surviving traces of the earlier mosaic. Future plans for the public display of the mosaics are currently being determined in consultation with Southwark Council.

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Location of the Liberty of Southwark site in Roman London. Museum of London Archaeology (MOLA), reproduced with permission from Ordinance Survey.

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MOLA archaeologists at work on the mosaic. MOLA/Andy Chopping

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MOLA archaeologist at work on the smaller decorative panel of the Southwark mosaic. MOLA/Andy Chopping

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MOLA archaeologist at work on the mosaic as seen in the city context. MOLA/Andy Chopping

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Article Source: A Museum of London Archaeology and Liberty of Southwark press release.

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