House Office Buildings, lining Independence Avenue Across from the Capitol Building, are
named after Speakers of the House and run alphabetically and chronologically (Speaker's term in office) down the Hill.
CANNON OFFICE BUILDING (CHOB) has five floors. Room numbers
have three digits, with the first digit designating floor level. Two-digit rooms preceded by a "B", such as B74, are located in the
basement.
LONGWORTH OFFICE BUILDING (LHOB) has seven Floors. Room
numbers have four digits beginning with 1. The number 1 indicates that the room is located in Longworth, the second digit indicates
the floor level (the digit "0" indicates the ground level.) Rooms located in the basement and sub-basement levels have three digits
beginning with "2" and are preceded by the designation "B" or SB" for example b265.
RAYBURN HOUSE OFFICE BUILDING (RHOB) has four floors. Room
numbers have four digits beginning with 2. The number 2 indicates that the room is located in Rayburn; the second digit indicates
the floor level. Rooms located in the basement and subbasement levels have three digits beginning with the number 3 and are
preceded by the designation B or SB respectively, followed by the number 3.
The House has two annexes where many Member organizational and support, service, and committee offices are
located.
House Annex Number 1 is located across the street from the Cannon Building at the corners
of C Street and New Jersey Avenue, SE Offices are designated with three digits preceded with H!. There is only one entrance to the
building proper, located on New Jersey Avenue SE, first floor. There are no tunnels in this building. The intern office, among
others is located on the fifth floor level, room H1-510.
House Annex Number 2 is located across a maze of roads at the bottom of the Hill/western
end of Rayburn Building. Offices are noted with three digits preceded by H@. Since House Annex Number 2 is located a few blocks
away from the main cluster of congressional buildings, it is a short outside hike up the Hill to the other buildings
.
