Seattle’s Historic Triangle Pub Begins a New Chapter in Pioneer Square

One of Seattle’s oldest neighborhood bars is getting a new lease on life. The Historic Triangle Pub at 553 1st Ave. S. in Pioneer Square is being restored by owners Steve Bassett and Matt Greenup, who once visited the bar as customers in the 1990s.

The distinctive building has served as a gathering place since 1910, when it opened as the Triangle Hotel with a ground-floor saloon. Over the years, the venue operated under several names, including Jack’s Bar, Lou’s Tavern and Flatiron Tavern. Its historic interior includes a preserved fresco, while the renovation incorporates period-inspired details such as stools, wainscoting and the back bar.

The reopening is taking place in stages. The pub initially plans to serve beer and wine, while food service and a full bar program remain on hold until construction and licensing work is completed. A required upgrade to the building’s water supply line will involve excavation along First Avenue and could take several months.

Address: 553 1st Ave. S., Seattle, WA 98104