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620 N LaSalle Dr, Chicago IL 60654

About Our Company

Next Realty is working to manage and lease 620 N LaSalle building. We're an accomplished property management and leasing firm with a long track record of managing and leasing office spaces in the River North neighborhood. Whether it’s a hot desk or a loft office space for rent in Chicago, we'll provide tenants with the right working environment for their business.

About 620 N LaSalle building

Previously home to the former Morrie Mages, Sportmart and Sports Authority, this iconic eight-story building at the corner of Ontario and LaSalle has been reinvented as a modern timber loft office building. The extensive inside and out renovation and modernization that included the  replacements of all mechanical systems, installation of new vertical transportation as well as new modern amenities such as a large roof top desk, showers, bike room, and tenant lounge areas. These new additions as well as many others not listed here have transformed the building into a state of the art work environment with convenient lifestyle amenities to meet today’s tenant demands.

We Are Here to Help

Our team of real estate professionals have a long history of running and leasing office spaces in Chicago. We are passionate about providing our tenants with superior service and to help them to find the right office solution for their business.

Marc Blum

Marc Blum


With 25 years of experience in real estate investment and portfolio management, Marc's leadership offers an in-depth understanding of the nuances integral to successfully leasing and managing office spaces in Chicago.

Pam Sullivan

Pam Sullivan


Pam joined Next Realty in 2022. Pam is a veteran in the shared office and coworking industry in Chicago and is excited to be able to say “YES!” to any space requirement from 80 – 80,000 square feet.

Danny Nikitas


A well-known member of the Chicago real estate community for more than 30 years. As a broker, Danny has secured more than 500 lease transactions totaling more than 4.5 million square feet in buildings such as Willis Tower (formerly Sears Tower), John Hancock Center, Prudential Plaza, AMA Plaza (formerly One IBM Plaza) and Citigroup Center.

Melissa Hemberger


Melissa specializes in assisting multi-tenant office building owners and tenants in maximizing their real estate value through innovative leasing strategies. Melissa has worked on several complex transactions and assignments and has worked on the leasing of some of the city’s most recognizable new economy buildings, including leasing 20 West Kinzie.

Jillian Brown


Julian is focused on assisting occupier clients strategic flexible office solutions with education, market benchmarking, client flex strategy creation and implementation, operator/owner selection management oversight. Prior to this role, Jillian was Director of Workplace at Convene, one of the most innovative flexible operator companies which helped building owners rethink their hospitality experience in order to deliver an enterprise workplace experience for enterprise occupiers.

Konstantine T. Sepsis


Konstantine advises Tenants and Landlords and draws from his background to lend a valuable perspective to the negotiation process. Relying on his vast market expertise and extensive resources, he has successfully closed transactions for local and nationally based clients including Centro, GfK Holdings, Ghafari, and NCG Banco, S.A.

Michael Kloppenburg


Michael spent nine years with Carr Companies working in management and sales for Carr Workplaces, an industry-leading national coworking operator. In 2015, Michael was integral in developing the in-house brokerage operation for Carr Companies leading tenant and landlord representation for the firm as Principal Broker. There he completed over $50M in lease transactions advising clients on their customized office requirements.

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620 North LaSalle Office Spaces

620 N LaSalle Dr, Chicago, IL 60654

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  • Area Sights
  • Museum of Contemporary Art
    7 minute drive
  • Washington Square Park
    11 minute walk
  • Magnificent Mile
    4 minute drive