Kylie Jenner's INSANE Miami Rental Mansion

Kylie Jenner has planted temporary roots in Miami ... and the pad she's calling home looks like it could double as a space station.

Sources close to Jenner say the $15 million, 6 bedroom 7 bathroom mansion is currently occupied by Kylie, Tyga and friends while they hang out for Art Basel. Not only does the place have a rooftop balcony ... it's got a lap pool, futuristic design and is right on the water.

Jenner's been flaunting the crib's elevator during her trip, and if you wanna take a ride ... it can be done for a whopping $8k a night on Airbnb.

Sure beats the local motel.