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General Information

Beginning of works: 1177
Completion: 1240
Status: damaged

Project Type

Structure: Rib vault
Function / usage: Church
Material: Masonry structure
Architectural style: Gothic

Awards and Distinctions

1991 part of an ensemble  
1862 classement  


Location: , , ,
Address: 6 place du Parvis Notre-Dame
Location description:

On the Ile de la Cité

Coordinates: 48° 51' 11" N    2° 20' 60" E
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Technical Information


width 48 m
length 127 m
choir width 12 m
length 38 m
crossing tower height 96 m
nave length 60 m
height to key of vault 33 m
width of central aisle 13 m
side aisles width 5.9 m
height to key of vault 10.1 - 10.5 m
towers height 69 m
transept width 14 m
length 48 m
western façade width 43.5 m
height 45 m


roof wood
building structure stone

Case Studies and Applied Products

Reconstruction of Notre-Dame – 3D survey as immediate measure

Reconstruction of Notre-Dame – 3D survey as immediate measure

On Saturday, 20th April 2019, the AGP (Art Graphique & Patrimoine) team joined forces with FARO to carry out an emergency initiative to help save Notre-Dame. Conducted in just one day, this in ... [more]



First stone is laid. Bishop Maurice de Sully begins with the reconstruction of the cathedral.


Beginning of works on the nave.


Choir finished except for the vaults.


Roof construction on-going.


Work on the western façade begins.


Western spans of the nave are completed.


Rose in western façade (diameter 9.60 m).


Modification of the flying buttresses. Construction of buttresses to take wind loads on top of the gutter walls.

1220 — 1225

Towers are finished.


Beginning of enlargement of high windows.

1230 — 1240

Eastern chapels at the northern end of the nave by Pierre de Montreuil.

1245 — 1248

Chapels near the choir by Pierre de Montreuil.

ca. 1245 — 1296

Northern transept - widening of one span, chapels and façade according to plans by Jean de Chelles.


Northern rose by Jean de Chelles (diameter 12.90 m).


Southern transept - widening of one span and façade by Jean Chelles the Pierre de Montreuil.


Southern rose by Pierre de Montreuil (diameter 12.90 m).

1725 — 1727

Reconstruction of the southern rose by Claude Penel under the guidance of architect Boffrant and at the cost of the Cardinal de Noailles.


Beginning of restoration works by Viollet-le-Duc.


Restoration of the southern rose by Viollet-le-Duc who modifies the outer tracings.

15 April 2019, 18:50 A fire starts in the roof structure of the cathedral near the base of the central spire. The fire burns for hours.
15 April 2019, 19:57 The wooden central spire, designed and built in the 19th century by Viollet-Le Duc collapses.
16 April 2019, 09:50 The speaker of the Paris fire brigade declares that the fire has been put out entirely. More than 400 firefighters were mobilised during the night to control and extinguish the fire. About two thirds of the original wooden roof structure dating back to the 12th and 13th centuries were completely destroyed in the fire. Some of the vaulting was damaged as well but generally the structure of the cathedral and its towers remain intact.

During the fire, about 30% of the artwork and other valuables in the cathedral were moved to safety including the treasure. Relics stored in the spire where however lost. The statues at the foot of the central spire had fortunately been removed on April 11 for restauration and thus could not have been damaged in the fire.


(role unknown)

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