Internal Revenue Service

Old and new combine for a flexible, efficient workspace

The Project

The 1998 Internal Revenue Service (IRS) Restructuring and Reform Act initiated a study that investigated how to better serve taxpayers and how to increase the productivity of existing processing service centers nationwide. The study recommended consolidating eight locations into one general campus for Kansas City’s Service Center. As the IRS required over one million square feet of programming space, the biggest challenge for the project team was creating an economically efficient, environmentally responsible, healthy building while the major energy performance goal was to design the building to accommodate IRS’s peak seasons, when more space is needed, without operating a mostly empty building year-round.

The campus was created by connecting an existing 1933 post office with a new 660,000 square foot addition. The 6 story post office (now the Pershing Building) was extensively renovated to house the administrative offices of IRS employees. Built onto the existing structure were 3 processing wings used to process returns. Energy efficiency was a focus of the campus design, and two major systems used to pursue this goal are a Webbased building automation system (BAS) for the entire facility and an underfloor air distribution (UFAD) system, which serves the Pennway Complex. The UFAD system presents more opportunity to increase energy efficiency by being able to run higher discharge air temperatures on the system, which by design saves energy. Also, the programming needs for IRS are unique because the organization operates at dramatically different capacities at different times of the year. An underfloor air system with multiple air handlers allows sections of the building to be turned off while maintaining an open floorplan. The underfloor wire and cable creates a flexible layout for future redesign. With a plug-n-play system, there is no rewiring necessary when associates and/or equipment is relocated. The IRS in Kansas City is definitely ready for the future.

Panel Type:
ConCore 1250
Resilients & PosiTile Carpet
Access Floor Sq. Ft.:
1 million
BNIM 360 Architects
General Contractor:
JE Dunn Construction Group
Engineering Firm:
Lankford & Associates
IRS Case Study

Download the Case Study

Internal Revenue Service