Mary's Heights Apartments, a 39-unit housing community located in the Harmony Hill development in Watertown, marked its official opening in early August.

The complex is located at 2330 Challenger Way in Watertown.

St Joseph Catholic Housing Inc. is the developer and general partner of Mary’s Heights Apartments. They hired Sioux Falls-based Costello Property Management, which has been in existence in the region for nearly a century, as the consultant for the property.

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