Shay Apartment

The Shay - apartment is where most of iCarly takes place. It is a three-story apartment with a private elevator in Bushwell Plaza, apartment number 8-C.

The first floor, which rests on the eighth floor of the building, has a living room with a connected kitchen. Spencer's bedroom is on the first floor as well, near the Shay's bathroom. The stairs along with the cargo elevator are both located towards the back of the apartment.

The second floor, the building's ninth floor, never seen on-screen as of Season 3, houses Carly's bedroom. The possibility of other rooms along with a bathroom is also open.

The third floor, the building's tenth floor, is better known as the iCarly studio.

Speculation
It is unknown if every apartment unit in the buildling has three floors. It is speculated that each unit does not have three floors, as Marty Klemish lives in 7-C, directly below the Shay's residence. It is assumed that his apartment unit only has one floor. Because of this, it can be speculated that the Shay's apartment is special in comparison to the other apartment units.