Interesting set design can often make mediocre movies great, and great movies even better. (I can think of a few turkeys that had me coming back just to get another look at furniture placement.)
It's usually meant to set the scene, provide blocking, or further define a character... but who cares about that crap?
These particular dwellings are where we'd wanna hang out - or live - solely for the decor & ambiance, and (mostly) regardless of what transpired there in the fictional realm.
Here's 10, though I'm sure we can think of more...
Allan's apartment - Play It Again, Sam
For my money, it's the most desirable living quarters on this or any other list.
Kenny's room - Don't Tell Mom the Babysitter's Dead
Ignoring the discarded food remnants and overall teenage pothead squalor, it's just about the neatest and most creative PG-13 metalhead bedroom this side of the sub genre.
Mario's Magic Shop - Pee Wee's Big Adventure
Pee Wee's house & yard may be badass, but that's because he shops here.
And they have gum!
The Puttermans' home - TerrorVision
It's meant to be tasteless and tacky, but so much effort was expended in accumulating such an eclectic array of erotic pop art that it comes across as impressively enviable - and a motif that seems easily attainable.
Lance and Jody's home - Pulp Fiction
Josh's apartment - Big
Heidi's apartment - The Lords of Salem
The Clubhouse - The Monster Squad
Lowell's home office - The Insider
The Chelsea Drugstore - A Clockwork Orange
The future may've been violent as predicted, but it's certainly not this colorful.