This page was formerly redirected to The Beachcomber, which I believe is in error.
Walt briefly stays at an apartment complex the first time that Skyler kicks him out. Is this the Beachcomber? I'm thinking so. (maybe add pictures?)
Later, he buys (or rents? It's unclear) a nicer apartment/condo (S3 E6, Sunset). From later exterior shots, I'm pretty sure this is here: https://firstname.lastname@example.org,-106.600854,3a,75y,174.17h,76.45t/data=!3m4!1e1!3m2!1spgLZj_QLpSE-UpK584frdg!2e0!6m1!1e1?hl=en
If you look to the south, you can see the church tower also present in the shot when Skyler comes to visit Walt's apartment for the first time (S3 E7, One Minute). This is Albuquerque's Nob Hill area. (add pictures?)
The location referred to in the Beachcomber article is an entirely different location.
So there are actually at least two different apartments that Walt has over the course of the series.