British property investment manager Nuveen Real Estate has completed the sale of Westlake Tower, a Class A office building in downtown Seattle, Washington, U.S.

Built in 1989, the asset is located at 1601 Fifth Ave., just south of the Denny Triangle and rises 25 stories above the Westlake Center shopping mall in the heart of Seattle’s downtown retail district.

Westlake Tower has on-site office amenities including 1,700 square feet of retail space, a café, conference rooms, a fitness center and two levels of subterranean parking.

Nuveen Real Estate sold the 365,674-square-foot asset, which was 95 percent leased at the time of the deal, to U.S. private equity real estate investment firm Unico Properties for $236 million.