12th administrative district of Paris, the Saint-Avoye neighbourhood is located in the 3rd arrondissement. Namely: it is surrounded by the Arts-at-Métier neighbourhood to the north, the Archives neighbourhood to the east, the 4th arrondissement to the south and parts of the 1st and 2nd arrondissements to the west.
In order to define this area precisely, we must start at the intersection of Rue Rambuteau and Boulevard Sébastopol. Then, going up Boulevard Sébastopol, you come to Rue Turbigo, which you must take. Once you reach Rue des Gravilliers, you have to enter there and then continue until Rue Pastourelle. When you reach Rue des Archives, you have to turn there. Then, as you go down it, you come back to Rue Rambuteau, which ends the route and closes the loop.
For your information, this district has a surface of 21.3 hectares.