One South Dearborn
One South Dearborn

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About One South Dearborn

One South Dearborn is a 40-story, 828,538-square-foot office tower in downtown Chicago. Designed by the architectural firm DeStefano Keating Partners Ltd., the graceful architectural metal and glass tower culminates with a dual-crown lantern soaring 60-feet above the structure. A 16,000-square-foot outdoor plaza clad in Italian granite fronts Dearborn Street and provides entry into a three-story glass and marble lobby. Other amenities include an on-site fitness center, conference facilities, tenant lounge, shoe shine, concierge dry cleaning lockers, tenant bike share program, 8,000 square feet of retail space and four floors of above-grade parking that accommodates 170 vehicles. The project was completed in November 2005.

View in Google Maps Map showing the location of One South Dearborn

Address

  • One South Dearborn, Chicago, IL

Location

  • Corner of Madison and Dearborn in the Central Loop

Architect

  • DeStefano Keating Partners Ltd.

Building Details

  • 828,538 square feet
  • 40 floors

Contact Info

  • Liz Westcott, General Property Manager 312-386-8305

Awards

  • Downtown Office Development of the Year
  • Patron of the Year
  • Awarded Top Performer in the city-wide competition to improve the environmental performance of business operations.
  • The Office Building of the Year (TOBY) Award - Best Operating Building from 500,000 to one million square feet

Major Tenants

  • Sidley Austin LLP
  • Mittal Steel USA

Sustainability

  • LEED Silver 2006
  • ENERGY STAR 2007
LEED Silver ENERGY STAR