Building Info

  • Address:
    624 E. Mason St.
  • Taxkey:
    3920936000
  • Architect:
    Collings Engineers Inc.
  • Status:
  • Assessment:
    $1,987,000 (2014)
  • Year Built:
  • Size:
    41,705 sq-ft

The 660 Building is a five-story office building in downtown Milwaukee.

The building originally opened in 1963 with a plaza on the corner, but was later expanded to have a five-story corner office tower. It was built and originally home to Collings Engineers, Inc. Bauer Construction Company served as general contractor on the $1,300,000 project.

Cook & Franke SC, which dissolved in 2012, owned the building for a number of years and operated their law firm out of the building since at least 1988 until 2012.

When originally completed, the building was 27,000 square-feet. After the expansion, it reached 41,705 square-feet in size.

The building today is owned by a holding company of Northwestern Mutual, whose corporate headquarters are located across the street.

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Activity

IDDateTypeDescription
PWOP-17-002732017/03/22Permit
ROW Occupancy Permit.
PWEU-16-027112016/12/08Permit
ROW Excavation Utility.
IDDateDescriptionType

Building data on this page, including assessment information, was last updated on January 1, 1970

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