When I lived in apartments, we just put our name on the door of the letterbox, and for our address we didn’t specify a mailbox number or anything like that we’d just put the name of the immeuble and street address.
In Paris the building had a gardien whose job was to put the post in the right person’s mailbox. In the Côte d’Azur the building was much smaller so the postman / postwoman just did it themselves.
I lived in a flat in paris for 20 years and never knew the flat number. None of the flats had numbers on the doors, and just names on post box and interphone. Maybe it was in our purchase documents, but never had any reason to check.
Yes, I have the documents but all that is mentioned besides the street address is the lot number. Still no number on the apartment door itself. The best part is that the apartment number indicated on the electrical panel different is not the lot number and both numbers are different from the apartment number on the DPE report. I give up and will just use the street address. Thanks for everyone’s comments.
You will have a cadastral number which is the plot, and then a lot number. For utilities you will have a point of delivery number for each utility. Your syndic may assign different numbers to each apartment too.
Our flat was always 9-11 rue de… (which was two blocks) and to friends it was first staircase, first floor front. Many friends in Paris blocks were similar.