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Architects + Project Managers

FIRS Headquarters Abuja

Headquarters for Federal Inland Revenue Service in the Nation's capital, Abuja.

ATO Architects won the competition for the design of FIRS Headquarters building in 2011. The
total site area is 14,113.97sqm, which accommodates a building footprint of 5645.58sqm. The
proposal comprises of three office towers with area of 36,660sqm and a multi-storey car per block which also houses social facilities such as the gymnasium, clinic and religious facilities.

The office spaces are accommodated on fifteen floors in the three towers, which are linked at the base by some communal facilities. The offices have been categorized departments as specified in the brief. They come in two major types; the open plan offices with partitions to create the required exclusivity of work groups and cellular offices for group Heads and Directors.

Each tower has been provided with two staircases, and four elevators to facilitate easy ingress and egress to and from the building. The towers are separated by ample airspace to allow adequate natural lighting and ventilation when required. A helipad has been provided at the roof level and this comes in the form of a circular platform linking all three towers and distributing directly to the lift lobby provided within the towers. A total number of 772 car parking spaces has been provided.

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Project Details


Federal Inland Revenue Service (FIRS)




5th Nov 2014 - Date

Scope of Work:

Design and Construction supervision

Contract sum:

Appr. $233m

Gross floor area

86000 sqm

Lettable office area

64,000 sqm

Height of building

85 meters

Height of building (inclusive of mast)

103 meters