Jennifer Lopez and Ben Affleck have more than enough room to spread out in Miami Beach -- 'cause J Lo's rented digs are tantamount to a 21st-century palace ... and then some.
We tracked down the waterfront property that J Lo's hunkered down in this week -- and let's just say there's A LOT of space.
The place is a 2-story fortress ... laid out over 10,000 square feet ... with 11 bedrooms, 12 bathrooms, 3 garages, a private gym, pool, jacuzzi and spa.
Oh, it's also got its own docking area. Also of note -- there's a guest house on the grounds -- so if JL gets sick of BA's cig sessions, there's always option B when it comes to bedtime. We doubt that's gonna be an issue.
No word on how much J Lo's paying for this or how long she plans to stick around -- but it was sold for a fortune last month to jewelry designer Paul Morelli, who snagged it for around $18 mil. Realtor Julian Johnston had the listing.
Anyway, it's pretty obvious this place is well equipped for more than just a party of two -- but for now, that'll do for Ben and Jen. Don't make too much of a mess in there!!!