Sale and Purchase of Flats in different cities of Pakistan Lahore Karachi Islamabad and Gwadar. Flats are the big sector of Pakistan. A flat is a set of rooms for living in, usually on one floor and part of a larger building. A flat usually includes a kitchen and bathroom. An apartment or flat is a self-contained housing unit a type of residential real estate that occupies only part of a building, generally on a single story. There are many names for these overall buildings. The housing tenure of apartments also varies considerably, from large-scale public housing to owner occupancy within what is legally a condominium, to tenants renting flats from a private landlord. The name was given to Flats which you rent weekly or monthly. The name was given to someone who is not cool and is dull and boring. Something which is level does not decrease or increase. The name was given to something filled with air which is now deflated.