They're professional pad-hoppers at this point!

Kim Kardashian and Kanye West have moved into their Bel-Air mansion temporarily while they wait for the remodel on their massive Calabasas estate to be finished, X17online can exclusively report. Construction at their Calabasas place is taking way longer than expected, and they didn't want to overstay their welcome at Kris Jenner's house.

A source tells x17:
    " Kim and Kanye felt badly for how long they've been at Kris' so they packed up and moved to Bel-Air three weeks ago. They've been trying to sell the Bel-Air place, but they desperately needed somewhere to go. They also felt it was time to live as their own little family, now that Saint is past the newborn stage."

No wonder their dream home is taking forever! Kimye have practically changed everything from the time they bought it.

Before the remodel, the gated 15,667-square-foot home had 8 bedrooms and 10 bathrooms. Features of the residence included a gym, a steam shower, a sauna, a gourmet kitchen with three islands, a game room, a home theater, a wet bar, a library and a guest house with a fireplace. While we aren't exactly sure what remains, we do know from our pix that they ripped out the pool and tore down the guest house.

Our money is on them moving back in Kris! They can't seem to stay away from the momager's cougar den!

UPDATE: In the photos shot today (above), you can see that Kim and Kanye tried their best to transform their Mediterranean into a modern and it just didn't turn out right. Moving trucks are in the driveway and guys are hard at work carrying in all of the family belongings. We're a little surprised Kanye didn't put holes in all the walls and call it art!