Transaction at 2100 Swift Drive launches capital improvements, new leasing opportunities
NAI Hiffman, the Midwest’s leading independent commercial real estate services firm, today announced ownership is moving forward with a comprehensive revitalization of 2100 Swift Drive in Oak Brook, Ill., following the signing of a 17,447-square-foot lease at the three-story, 58,000-square-foot property.
NAI Hiffman Executive Vice Presidents Patrick Kiefer and Dan O’Neill represented building ownership, Experimental Holdings, in the transaction with DesignPac, which brings the property to 30% leased. DesignPac was represented by Newmark Senior Managing Director Corey Chase.
Formerly a long-time call center for ComEd, the building was partially redeveloped in 2015 but never reoccupied, as it exchanged hands multiple times over the last decade. Experimental Holdings purchased the building in 2022 with the intent to re-tenant the building and finalize the redevelopment.
The 17,447-square-foot lease serves as the catalyst to finalize the redevelopment and will kick off a series of capital improvements, including new landscaping, a refreshed lobby, updated washrooms and corridors, and a resurfaced parking lot, as well as new HVAC, life safety and other building systems.
“With a committed, well-capitalized owner and professional management, 2100 Swift will reemerge as a new, modernized option for tenants seeking quality space in the East-West Corridor,” said Kiefer.
DesignPac, part of the 1-800-FLOWERS.COM, Inc. family of brands and a premier provider of gourmet gift baskets and sets for major retailers across North America, will take occupancy in February 2026 following the capital improvements and tenant buildouts.
The transaction underscores a broader market trend. According to NAI Hiffman’s Q2 2025 Office Market Report, suburban vacancy rose to 26.7% in the second quarter, with net absorption at negative 297,461 square feet. Class A buildings posted nearly 494,000 square feet of negative absorption, while Class B properties recorded a positive second-quarter total of 204,000 square feet, reflecting tenants’ growing interest in efficient, midsize buildings.
“2100 Swift Drive is exactly the type of property the market is rewarding — a reimagined boutique-sized building that meets today’s tenant needs,” said Kiefer, adding that the property’s Oak Brook address, easy access to Interstates 88 and 294, and proximity to nearby amenities like Oakbrook Center are also key selling points. The property also features open, adaptable floor plates, a three-story parking deck and ample surface parking.
Remaining leasing opportunities at 2100 Swift Drive include 18,698 square feet on the second floor and 22,113 square feet on the third floor.
About NAI Hiffman:
NAI Hiffman is one of the largest independent commercial real estate services firms in the US, with a primary focus on metropolitan Chicago, and part of the NAI Global network. We provide institutional and private leasing, property management, tenant representation, capital markets, project services, research, and marketing services for owners and occupiers of commercial real estate. To meet our clients’ growing needs outside of our exclusive NAI Hiffman territory, we launched Hiffman National, our dedicated property solutions division, which provides management services and advisory services across the country. NAI Hiffman | Hiffman National is an award-winning company headquartered in suburban Chicago, with more than 275 employees strategically located throughout North America.
About Experimental Holdings:
Experimental Holdings is a Cincinnati-based Commercial Real Estate Investment Group with a core focus on asset acquisition, reinvestment, redevelopment and partnering opportunities. Experimental Holdings has become increasingly entrenched in the communities it serves by reinvesting in under-performing commercial real estate assets, creating investment value, employing a hands-on approach to O&M strategies, and by providing improved tenant services.

2100 Swift Drive: NAI Hiffman brokered a 17,447-square-foot office lease with DesignPac at 2100 Swift Drive, jumpstarting a revitalization of the 58,000-square-foot building in Oak Brook, Ill.