Solid marble slabs. And a very good and insanely expensive, tile setter. With the architecture designed around the material use.

Better have a Kardashian’s budget to go with your want list. That’s 250K visible in that one small pic. Not including the architectural infrastructure to make it happen that you can’t see.

The door pull looks like an appliance pull. KKW probably didn't use an actual refrigerator pull on her door, but maybe you could find something similar.

From those pics and Kanye West's new stripped down design ideas, I'm not sure those "slabs" are marble, but perhaps treated concrete.

In case you haven't seen them, here are a couple more shots of the reno from Kanye's Twitter feed.

Kanye's design venture--Yeazey Studios--is inspired by Brutalism and is planning architectural projects as well.

Another vote for the before picture. It looks like the took a really beautiful space and made it worse :-(.

"Cloister Chic" perhaps? Yah. I made that up. This type of minimalism is extremely difficult to achieve without professional help (ahem...Design/Build Firm that specializes in this look). Layering white is FANTASTICALLY difficult to do.

The space also needs to be assessed. Regardless of your wishes, the house/room/space may not be able to handle the look.

Photos of what you are starting with would help. And I agree with Sophie, the original picture is showing marble slabs - not tiles. I'm sure Kim has a maid that deals with all the upkeep. And a stone company is contracted to come in twice a year to seal/polish the marble to keep it looking marvelous.

First things first: photos of what you already have.

Perhaps the entry hall is a "before" shot. Architectural Digest notes that polished concrete is the theme of the redo.