The costs and the sequence are the same wherever on the coast you buy. This page is the single place they are kept, so there is one version to keep right.
What it costs on top of the price
Add your transfer tax, notary, registry and legal figures here. Leave nothing approximate: buyers quote this page back.
From offer to completion
Reservation, private contract, completion at the notary — describe your own process and the usual timings.
Owning it afterwards
Annual taxes, community fees, utilities and the non-resident position.