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Project O.C. Tanner Flagship Store Historic Renovation & Seismic Upgrades Project Size

Project Size

19,024 sq ft

Project Dates

20 months

Project Location

15 South State Street Salt Lake City, UT

“We have assembled the best of the best to design, build, and furnish this amazing space that will be a most fitting honor to [founder] Obert Tanner and the excellence that he inspired in us all. He was a remarkable man and this is a remarkable building. Obert used to say there were four elements to his store–the building, the merchandise, the sales people and dreams. Our job, as he said, was to help people fulfill those dreams. This store will serve dreamers for generations to come.”

– Curtis Bennett, Vice President, O.C. Tanner

  • Self Performed Structural Concrete and Parking Structure
  • Tucker Design Award, Building Stone Institute | 2010
  • Best of the Best—Engineering Design, Engineering News Record | 2010
  • Award of Excellence—Renovation/Restoration, Marble Institute of America | 2010
  • Best of Award—Best Overall Project, Mountain States Construction | 2010
  • Best of Award—Gold, Engineering Design, Mountain States Construction | 2010
  • Best of Award—Gold, Restoration, Mountain States Construction | 2010
  • Heritage Award—Stabilization, Renovation or Restoration Project, Utah Heritage Foundation | 2010
  • Project of the Year—$0-25 million, AGC Utah | 2009
  • Honorable Mention—Commercial Over $5 million, ABC Utah | 2009
  • Champion of ABC Award, ABC Utah | 2009

Project Description

It took vision, collaboration, and a healthy respect for tradition to realize one of Salt Lake City’s most ambitious building restorations. A local landmark that first housed the Salt Lake Library in 1906 has become a one-of-a-kind retail experience for preeminent jeweler O.C. Tanner due to the outstanding efforts of the Big-D and MJSA Architects team. The historic structure, which also housed the famed Hansen Planetarium for over 40 years, was completely renovated to make way for the company’s flagship store.

The mix of modern and historical details come together in a sweeping spiral staircase that ascends all three floors, anchored by a stunning glass sculpture capturing the light from a two-story etched glass window. No expense was spared in ensuring the building’s beauty and safety—not only were cosmetic finishes repaired and refurbished using many of the building’s original finishes and materials, but extensive seismic and structural upgrades were also put in place. Our work on this building helped retain its historic features while making it safe and modern.