Emily’s apartment is on the 5th floor, shown as the north corner apartment. In this building, if there ever were any chambres de bonne they would have been on the 6th floor. I've counted about 2 to 3 different interiors represented as her apartment at Place de l´Estrapade but the only interior that was certainly in this building was the one from where shots looking over the Place were included.
On the far side of the Place de l´Estrapade is indeed la Boulangerie Moderne. Next to the boulangerie is an Italian restaurant Terra Nera, shown in the series as les Deux Compères, a French restaurant. This is where the chef from the 4th floor of Emily’s building works.
La Boulangerie Moderne looks remarkable in the series but it serves very ordinary bread/pastries. It´s more of a snack/sandwich stop for the local students. The real gem, the pastisserie that should not be missed in this area is the Pâtisserie du Panthéon - Sébastien Degardin, located on rue St Jacques just a few minutes walk away.
The series is a lot of fun that no one should take too seriously.