multi-tenant building; mixed-use building
A building that houses a mix of businesses, shops, and sometimes residential units. Often implies a somewhat older or less organized building in urban Japan.
This multi-tenant building has an izakaya on the first floor, an office on the second, and a residence on the third.
I heard the old mixed-use building in front of the station is going to be demolished.
Compound of 雑居 (ざっきょ, 'mixed living/occupancy') and ビル (building). 雑居 itself is composed of 雑 (miscellaneous) and 居 (reside).