The Franklin location will be on the corner of 27th and Drexel, following the purchase of the 20-acre land previously owned by Northwestern Mutual.

The 164,000-square-foot facility will include a 12-pump gas station and more than 800 parking spots. 

City leaders say this has been years in the making and could be a major boost for the area. 

“This has been a long and exciting planning process, and I know many people in Franklin are happy to hear this news,” said Franklin Mayor John Nelson. “I want to thank the Costco team for choosing our community to build its first store in Milwaukee County. I also want to thank the Franklin Common Council, Director of Economic Development, John Regetz and the Wisconsin Department of Transportation. Everyone is aware of what this great retail development will bring to our community, and we all worked together seamlessly to get it done."

If everything stays on track, the store is expected to open by November.