The Michigan Mutual Liability Annex is an office building in downtown Detroit, Michigan, located at 25 West Elizabeth Street.

The high-rise was constructed in 1950 and finished in 1951. It stands at 13 floors in height, 10 above, and 3 below-ground. it is a part of the Michigan Mutual Liability Company Complex.

The Michigan Mutual Liability Annex is used mainly for offices, and includes a parking garage. The building was designed in the modern architectural style, and was built with brick and granite.

• Architect: Harley, Ellington, Day
• This building includes a 4-story parking garage at its base.
• Though rather plain in design and decoration, the building's ground floor is clad in granite.
• This building's first four floors are a 115-space parking garage that serve both the annex and the adjoining Grand Park Centre.
• The ground floor of this building is faced in granite, while the rest of the building is faced in simple brick.
• The main roof deck parapet rises to a height of 125'-4.25".
• The building is joined to the adjacent Grand Park Centre by a ramp in the lowest basement of the building, and by a skybridge that starts at the 4th floor lobby connecting all the way to the top at each floor of the building.

• Google Maps location of Michigan Mutual Liability Annex
• "Michigan Mutual Liability Company Annex". Emporis. Archived from the original on 2015-05-14.{{cite web}}: CS1 maint: unfit URL (link)
• "Michigan Mutual Liability Company Complex". Emporis.
• "Michigan Mutual Liability Annex". SkyscraperPage.

42°20′14″N 83°03′06″W / 42.3372°N 83.0518°W / 42.3372; -83.0518