Mason Street Historic Residential District

The Daniel Gould House was a single-family home located at 509 East Main Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980. The house is missing and presumably demolished.

The Colin McCormick House is a historical house in Owosso, Michigan, designed by Edger Ingersoll, and is notable for its size. It has had only 4 owners in its more than 120-year history. The last member of the McCormick family died in the house at 107 years of age. Edger Ingersoll incorporated features like the slate roof, crocheted roof ridging, hipped roof, scalloped trim, and more. It lies at 220 E. Exchange. The house was added to the National Register of Historic Places in 1980.

The Owosso Downtown Historic District is a substantially commercial historic district, located in downtown Owosso, Michigan, roughly bounded by the Shiawassee River, Comstock Street, Water Street, Park Street, and Mason Street. The district was listed on the National Register of Historic Places in 2014.

The Duff Building is a commercial structure located at 118 West Exchange Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1985.

The Grow Block is a commercial building located at 120-122 West Exchange Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1985.

The Steam Railroading Institute is located at 405 South Washington Street, Owosso, Michigan. It was founded in 1969 as the Michigan State University (MSU) Railroad Club. It became the Michigan State Trust for Railway Preservation, and later adopted its present name.The Steam Railroading Institute is an organization dedicated to the preservation, restoration, and operation of historical railroad equipment and items. It operates a heritage railroad which offers occasional passenger excursion trains using steam locomotives: Pere Marquette 1225 and Chicago and North Western 175.

The Julius Frieseke House is a single family home located at 529 Corunna Avenue in Owosso, Michigan. It was listed on the National Register of Historic Places in 1990.

The George Pardee House is a single-family home located at 603 North Ball Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980.

The Leigh Christian House is a single-family home located at 622 North Ball Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980.

The Alfred Williams House is a single-family home located at 611 North Ball Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980.

The Benjamin Oliver Williams House is a single-family home located at 628 North Ball Street in Owosso, Michigan, United States. It was listed on the National Register of Historic Places in 1980.

The Amos Gould House is a single-family home located at 115 West King Street in Owosso, Michigan. It was listed on the National Register of Historic Places in 1980.