There are about 300 or so buildings in NYC that are condop but many people get confused as to what it actually is. Typically, it’s a residential co-op on top of retail where the retail is a condo. Read Brownstoner’s more detailed explanation to find out what exactly they are and where most of them are.

http://www.brownstoner.com/real-estate-market/what-is-a-condop-definition-condo-co-op-brooklyn/