Mayo Clinic is planning to expand its Superior Drive Support Center, which houses Mayo Medical Laboratories.
The clinic submitted plans on Feb. 14 to build a proposed 66,000-square-foot, two-story addition on the south side of the complex at 3050 Superior Drive N.W.
MML conducts a wide variety of medical tests for hospitals worldwide. According to its website,
it performs nearly 20 million tests for more than 4,000 hospitals annually. The testing division overall has more than 3,200 employees, including more than 160 physicians and scientists. It has 58 laboratories that perform testing with support from Mayo Clinic physicians.
While Mayo Clinic spokesperson confirmed the existence of site development application, officials there say it's too early to discuss specifics such as the timeline for the project or estimated cost. However, the plans designed by Flad Architects offer general details.
The expansion will more than double the lab space in the complex. It currently has 30,854 square feet of labs. The plans show that 34,000 square feet of laboratory area in the proposed addition to bring the total lab space to a total of 65,000 square feet.
Office space in the SDSC is slated to grow by 5,472 square feet, for a total of 137,000 square feet of space, following the expansion.
The remainder of the 26,000 square feet in the proposed expansion is described only as "Other." The first floor of the addition will have 28,533 square feet, and the second level will have 27,842.
Mayo Clinic moved into the 13-year-old complex in 2004. By 2011, approximately 800 employees worked at the facility. It was originally built by electronics manufacturer Celestica Inc. in 2001. When that company closed its Rochester operation, the building was left empty.
While Mayo Clinic leased the property for eight years, it purchased it for $18.5 million in August of 2012. Prior to that it was owned by 17 national investors through Triple Net Properties of Santa Ana, Calif. until they defaulted on the mortgage in 2012. The investors bought the property for $36.8 million in 2006
When the mortgage defaulted, HSBC Bank USA took over the property. HSCB then sold it to Mayo Clinic.
While it was was originally under construction, New York City-based W. P. Carey & Co. LLC bought the complex from Celestica, which leased it back. W.P. Carey later sold it for about 70 percent more than the $21.6 million it paid for it.