Notre Dame Excavation Uncovers Centuries of History
The area in front of Notre Dame Cathedral in Paris is becoming much more than a construction site. Before the city transforms the cathedral’s forecourt into a green public space, archaeologists are carefully examining the ground beneath it. Their work is providing a rare glimpse into nearly 2,000 years of history on the Ile de la Cite, the historic heart of Paris.
The excavation follows the devastating 2019 fire that destroyed Notre Dame’s spire and led to years of restoration. After the cathedral reopened in December 2024, city officials announced plans to redesign the surrounding plaza by 2028. The project will add 160 trees, water features, and shaded areas to help pedestrians and tourists cool down during increasingly hot summers.
In a city as ancient as Paris, major development projects must begin with archaeology. French heritage laws require careful excavations before large-scale construction to ensure that historical remains buried beneath streets, plazas, and buildings are protected.
Dubbed the “excavation of the century,” the dig sits just steps from the lines of visitors arriving at Notre Dame. A temporary wooden walkway covers the area, allowing the public to observe archaeologists at work below.
The excavation reaches about 4 meters underground. Each layer reveals a different chapter of the city’s past. Near the surface, archaeologists uncovered the foundations and cellars of medieval homes. During the 12th century, when Notre Dame was being built, houses crowded the area surrounding the cathedral.
Deeper layers contain grain-storage pits dating from the Merovingian and Carolingian periods, between the sixth and 10th centuries. These discoveries suggest that the island remained active long after the decline of Roman authority in Western Europe. Further down lie remains from the fourth and fifth centuries, when Paris was known as Lutetia under Roman rule. As the Western Roman Empire declined, residents moved to the more secure island and reused stone from older buildings to strengthen its defenses.
The site has also yielded well-preserved small finds. Numerous artifacts such as jugs, cups, and kitchen tools have been found in medieval latrines and refuse pits, where moisture helped protect them from deterioration. Small coins have helped date the lower layers, including one bearing the image of Emperor Constantine.
Each recovered artifact will be recorded, dated, and preserved by the archaeology service in Paris. Archaeologists seek to dig deeper in search of evidence of the Gauls, the earliest known inhabitants of what is now Paris.
Sean Jung R&D Division Director teen/1781855221/1613367592
1. In which year did the devastating fire destroy Notre Dame’s iconic spire?
2. What specific target completion year did city officials announce for the redesign?
3. How deep underground does the current historic excavation on the island reach?
4. Which Roman name was Paris known by during the fourth century period?
1. Should cities replace historical paved plazas with green public spaces for tourists?
2. Why is it crucial to protect ancient historical remains during urban development?
3. Do you think temporary walkways are useful for connecting publics with history?
4. Can discovering small ancient artifacts change how we understand modern daily life?
The area in front of Notre Dame Cathedral in Paris is becoming much more than a construction site. Before the city transforms the cathedral’s forecourt into a green public space, archaeologists are carefully examining the ground beneath it. Their work is providing a rare glimpse into nearly 2,000 years of history on the Ile de la Cite, the historic heart of Paris.
The excavation reaches about 4 meters underground. Each layer reveals a different chapter of the city’s past. Near the surface, archaeologists uncovered the foundations and cellars of medieval homes. During the 12th century, when Notre Dame was being built, houses crowded the area surrounding the cathedral.
