The Tam, Theater District.

The basement bar that nobody renovated.

The Tam opened in 1949 in the basement of a Tremont Street office building, two blocks from the Boston Common. The bar was designed by an immigrant Scottish bartender as a Tudor-themed pub, with low ceiling beams, dark wood paneling, leaded glass windows on the staircase, and a small Tudor coat-of-arms above the back bar. The Tudor theme was fashionable in 1949 American hotel and restaurant design. The Tam never updated.

The room is below street level, accessed by a staircase from a small Tremont Street awning. The room is L-shaped: a long bar along the right wall, ten booths along the left and back walls, no windows, no skylights, no overhead lighting beyond two small chandeliers and the back-bar lamp. The carpet was replaced in 2003 with the same colour and pattern. The smell of the room is a 1949 basement bar that has never seen direct sunlight.

Why this matters. The Tam is the rare downtown Boston bar that has held its 1949 lease, its 1949 design, and its 1949 working-class identity through seven decades of central Boston redevelopment. The basement location is the bar's protection.

The 8am opening for the courthouse crowd.

The Tam opens at 8am every weekday morning. The morning hour is reserved for a specific Boston population: court reporters, sheriff's deputies, lawyers between cases, and the Boston police shift coming off graveyard. The morning crowd at The Tam is the most documented working-class drinking room in central Boston.

The 8am-to-10am window features a small kitchen menu of breakfast items: an Egg McTam (the bar's name for an egg, ham, and cheese on a bulkie roll, three dollars), a small bowl of Quaker oatmeal at two dollars, and a coffee with a shot of Jameson at five dollars. The Jameson coffee is the morning drink that earned the bar its working reputation. The bartenders pour it without asking after 8am.

Bud Heavy and a Jameson coffee.

• Bud Heavy: three dollars at lunch, four dollars after 5pm. The Tam default. The Boston police choice.
• Sam Adams Boston Lager: four dollars draft. The local brewery alternative.
• Jameson coffee: five dollars. The 8am morning drink.
• Old Fashioned: seven dollars. The bar's only cocktail. Made with Bulleit, made fast.
• The thing nobody knows: the bar pours a small Lagavulin scotch at five dollars from a bottle that has been on the shelf since 1989. Ask for "the old Lagavulin." The bartender will look at you and pour without asking why.

Tuesday at 4pm. The pre-theatre hour.

The Tam opens at 8am Monday through Saturday and at noon on Sunday. The bar closes at 2am every night. Tuesday at 4pm is the pre-theatre hour: the booths are open, the lunch crowd has cleared, the pre-show theatre crowd is starting to filter in from the nearby Wilbur and Wang Theaters, the bartenders pour Old Fashioneds for theatre actors testing voices.

The peak hour is Friday and Saturday between 11pm and 1am, when the post-show theatre crowd, the post-court-reporter crew, and the local Boston police all overlap. The 8am Monday hour is the hour to plan around if you want the Tam at its most working-class: the booths are full of court reporters reading transcripts, the bartender pours coffee with Jameson, the room smells of 1949.

Sunday afternoon at 2pm is the slowest scheduled time. The bar opens at noon. The 2pm to 4pm window has half-empty booths and bartenders who will tell you about the 1949 Tudor design choices.

Why this is the unofficial cop bar.

The Tam has functioned as the unofficial Boston Police Department bar since at least the 1970s. The basement location, the 8am opening, the cheap Bud Heavy, and the booth row have made the bar the standard end-of-shift drinking room for the BPD downtown precincts. A typical Saturday morning at 8am at The Tam includes between three and seven off-duty Boston police officers.

The bar's relationship with the BPD is informal and friendly but not formalised. The bartenders do not pour comp drinks for officers, and the officers do not expect them. The relationship is one of mutual respect of place. The court reporters, the sheriff's deputies, and the BPD all use the bar as a low-pressure neutral space, which is a rare social function in central Boston.

Twenty-five dollars per person, four drinks.

Plan for twenty to thirty dollars per person for a three-hour visit. Three Bud Heavies at four (or three at lunch), one Old Fashioned at seven, twenty percent tip. A pair of friends drinks for forty-five to sixty dollars total. The cheapest serious dive in central Boston.

Cards are accepted. Cash is preferred. The bartender pool includes the kitchen staff. Two dollars per drink in cash on the bar is the local norm.

BPD, court reporters, theatre crew, the basement regulars.

The Tam draws four populations across the day. The first: the Boston Police, court reporters, and sheriff's deputies, particularly between 8am and 11am and between 4pm and 7pm. The second: the Tremont and Boylston theatre crew, both pre-show (4pm to 7pm) and post-show (10:30pm to 1am). The third: a small contingent of long-tenure downtown Boston residents who use the booth row as a reading room. The fourth: a handful of literary tourists who have read about the bar in Boston magazine pieces.

You will not find a Cambridge or Brookline crowd at The Tam. The bar's basement location and the 1949 carpet filter for a specific Boston working-class downtown identity. The Boston tech crowd does not arrive.

How not to be the worst person at The Tam.

• Do not photograph the police officers at the bar. The bar is a low-pressure neutral space. The bartenders enforce.
• Do not request "Sweet Caroline" from the jukebox. The bar's music is the bar's music. Avoid the song.
• Do not order a craft cocktail beyond the Old Fashioned. The bartenders pour fast and pour from the menu.
• Do not bring a stag party between 8am and 11am. The booth row is reserved for the morning regulars.
• Do not ask if the Tudor decor is real. The decor is 1949 Tudor revival. The bar is real.
• Do not photograph the basement Tudor coat-of-arms. The coat-of-arms is private to the bar.
• Do not, ever, ask why the bar is in a basement. The 1949 lease was for a basement space. The basement is the bar.

The Tam, a Wilbur Theatre show, Sweetwater Tavern.

The classic Theater District evening: arrive at The Tam at 4pm for a Bud Heavy and a booth, sit pre-show for two hours. Walk one block to the Wilbur Theatre at 7pm for a comedy show. Return to The Tam at 10pm for a post-show Old Fashioned. End at Sweetwater Tavern across Tremont at midnight for one more.

For more bars in the area, see our Boston city guide, the Theater District hidden gems, and the Boston sports bars guide.

Yes. Boston's most preserved 1949 dive.