George Mendes and his wife Suzanne moved to the South End three years ago, when he took over the kitchen at Amar, the restaurant inside the Raffles hotel in Back Bay. He'd spent more than a decade before that running Aldea, a Michelin-starred restaurant in Manhattan that closed in 2020. Boston was supposed to be a job. When he parted ways with Raffles in 2025, he signed two leases at 1673 and 1679 Washington Street, in the neighborhood where he already lived.
That neighborhood connection matters more than it looks like it should, because versions of it are showing up again and again on this stretch of the South End right now.
The Pattern Nobody Planned
Mendes's first project, Agosto, is a 45-seat restaurant built around a chef's counter and a tasting menu, and it's slated to open in November 2026. Next door, later this year, comes Baby Sister, a bakery-café from the same kitchen that will start selling pastéis de nata once it opens. Two businesses, one short stretch of sidewalk, built by someone who already had a house key on that street before he had a lease.
A few blocks down at 604 Columbus Avenue, the same logic is playing out with deeper roots. That address's history as a soul food restaurant and live music venue dates to 1957, first as Bob the Chef's, then as Darryl's Corner Bar & Kitchen. Nia Grace, who also runs Grace by Nia in the Seaport, bought Darryl's in 2018 and ran it through 2023, when she closed it for a full rebuild. It reopened this year as Uptown Social, with executive chef Chelven Randolph keeping the building's curved, tiled bar from the Darryl's era and building a new menu of elevated Southern cooking around it.
What's Already Open If You Want Dinner Tonight
The South End's current dining lineup on and around Washington Street includes:
- Uptown Social, 604 Columbus Ave: Southern comfort food with Caribbean and African threads, live music, and a menu built around buttermilk biscuits with crabapple butter, lamb suya with smoked peanuts, and a veal chop finished with red eye gravy.
- Posto, 1357 Washington St: wood-fired pizza and a Tuscan seafood stew from an operator with an established following at its original Davis Square location, open here since January 2026.
- Mesob, 1746 Washington St: Ethiopian and Eritrean cooking from breakfast through dinner, open since December 2025, with poached berbere eggs in the morning and kitfo and tibs at night.
- Bey, Shawmut Ave: a small Lebanese spot named for Beirut, known for whipped labneh with za'atar chips and a whole grilled branzino.
- Louis Corner, Tremont St: American comfort food and cocktails in the space that housed Barbara Lynch's Butcher Shop for two decades, now operating with a full liquor license.
None of these are outposts of a national chain testing the market. Each one is either a local operator's expansion or a chef building something new steps from where they already live and work.
What's Coming Before the Snow Flies
Agosto and Baby Sister are the two names to watch closest this fall, since they'll finish what Mendes started when he signed those Washington Street leases. Agosto's tasting menu draws on his Portuguese heritage filtered through French technique and time spent at El Bulli in Spain, built around New England seafood and relationships with local fishermen and farmers. Baby Sister will handle the morning shift next door.
Further out, Kathy Sidell, who runs Saltie Girl, is taking over the Tremont Street space that used to hold B&G Oysters, an address with its own history in Boston seafood. The new restaurant, called The Shell Bar, isn't expected until spring 2027, but it's another example of an established Boston operator choosing this neighborhood over a fresh start somewhere else. In the meantime, a Southeast Asian pop-up called Phaeng & Phiu has been running at 11 William E. Mullins Way, giving the corridor a rotating taste of Laotian, Filipino, and Thai cooking alongside the permanent openings.
The Sundays That Don't Care What's for Dinner
None of this depends on a restaurant reservation. A few blocks from Washington Street, the SoWa Open Market runs every Sunday on Harrison Avenue and Thayer Street through November 15, with local artisans, farm vendors, food trucks, and vintage sellers set up in the open air.
The same building at 450 Harrison Avenue that hosts SoWa First Friday art walks each month also runs the SoWa Artists Guild's open studios every Sunday from 11 a.m. to 4 p.m., where more than 80 working studio artists let visitors browse and buy directly. Both are free.
Once the market season ends, the SoWa Power Station at 550 Harrison Avenue picks up the calendar with its Winter Festival, running from November 20 through December 27 this year, with more than 100 regional makers and specialty vendors filling the historic building through the holidays.
Between the restaurants and the market calendar, there's rarely a week in the South End right now without something new to walk to.
What ties Washington Street's new restaurants together isn't proximity to each other. It's the neighborhood connections behind the openings.
If you're weighing a move of your own in the South End or elsewhere in Brookline, Chestnut Hill, or Newton and want a read on what a specific block is actually like to live on, not just to visit, Eileen Strong O'Boy has been walking these streets for more than three decades and is glad to talk it through.
