| Alternate Names: | Clark Building |
| Address: | 633 W. Wisconsin Avenue |
| Coordinates: | 43.0382°N -87.92°W |
| Status: | Completed |
| Completion Date: | 1964 |
| Architect: | Robert Lee Hall & Associates |
| Floor Area: | 230,500 sq ft |
| Floor Count: | 20 |
| Height: | 252 ft (77 m) |
| Main Contractor: | Southern Builders |
633 Building, also known as the Clark Building, is a 20-story, 252-foot-tall (77 m) skyscraper in Milwaukee, Wisconsin. The tower is located at 633 W. Wisconsin Avenue.
633 Building was constructed in 1964 and contains 230,500 square feet of office space along with 450 parking stalls in an adjoining parking garage.[1] 633 Building was named the Clark Building in 1967 after it was sold to Clark Oil, a Milwaukee-based oil company.[2] In 2017, the property was acquired by Milwaukee developer Josh Jeffers, who intended to redevelop the 48,000 square feet of commercial space on the southern side of the ground floor.[3]
A 40-foot (12 m) Miller Brewing Company sign is located on top of the tower.[4]
Robert Lee Hall & Associates provided the architecture for 633 Building, while Southern Builders served as the general contractor.[5]