Historic Triangle Pub
553 1st Ave S, Seattle, WA 98104

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News & Updates

We are so excited and honored to be resurrecting The Historic Triangle Pub! So many of you have stopped in to tell Matt and Steve stories of your experiences over the years in this iconic bar.

While we're not fully open yet, our patio will be open for events. Since we're only open on the patio, unfortunately the dates we'll be open are also weather-dependent. Check our website for our schedule!

CONSTRUCTION:

Phase 1 construction (patio) is complete, and we are active for events! Phase 2 of our construction process is finishing the interior (flooring, electrical, plumbing, backbar, etc.). We hope to have that completed by the end of July so we can host everyone both inside and on our amazing patio!

TAVERN VS. BAR:

Due to a new city requirement, our water supply line must be enlarged. To do that, 1st Ave will have to be dug up. We have been told that it may take up to 6 months.

What that means to us (and to you!) is that we will be a tavern until then, serving only beer and wine, with no in-house food offerings.

When we finally get our new water line, we will be able to activate our full kitchen downstairs and bring you amazing cocktails upstairs!

Stay tuned for progress.

Events

While we are under construction, our patio will be open and serving for Mariners and Sounders games, and other special events.

Check back here for our upcoming Events Schedule, and follow us on Instagram for the most current schedule and updates!

A Century at Seattle’s Flatiron Corner

Since 1910, the landmark triangular building at 553 1st Ave. S. has served generations of railroad workers, longshoremen, sports fans, travelers, and Seattle locals. Known over the decades as the Triangle Hotel, Jack’s Bar, Lou’s Tavern, Flatiron Tavern, and most famously the Triangle Pub, the building has remained a gathering place at the edge of Pioneer Square for more than a century.

Pre-1910

Early Industrial Era

Before the current structure was built, the site was part of Seattle’s industrial waterfront district and was occupied by the Stetson & Post sawmill and planing mill operation.

1910–1920s

Triangle Hotel & Triangle Bar

Constructed in 1909–1910, the building opened as the Triangle Hotel with a ground-floor saloon known as the Triangle Bar. Located beside the rail lines and waterfront, it catered to workers, travelers, and the bustling Pioneer Square district. Upper floors contained small hotel rooms, while the tavern quickly became a neighborhood fixture.

1920s–1930s

Prohibition & Transition

During Prohibition, tavern operations became less documented, though the building continued functioning as lodging and commercial space. By the early 1930s, the ground-floor bar had reportedly reopened as Jack’s Bar. Parts of the building were also used by Western Union during portions of this era.

1940s–1975

Lou’s Tavern Era

By the mid-20th century, the building had become home to Lou’s Tavern (also referred to as Louis Tavern), one of the best-documented chapters in the building’s history. The tavern operated beneath apartments and hotel rooms upstairs and became a recognizable Pioneer Square watering hole through the 1950s, 60s, and early 70s.

1970s–1980s

Flatiron Tavern

As Pioneer Square evolved, the bar was at times known as the Flatiron Tavern or Triangle Tavern, reflecting the building’s unique wedge-shaped architecture and growing identity as a Seattle curiosity.

1980s–2020

Triangle Pub

From the late 1980s through 2020, the building operated as the legendary Triangle Pub — a beloved Seattle dive bar and pre-game destination for Mariners, Seahawks, and Sounders fans. For many Seattleites, this became the building’s defining era.