August In Watertown: What's New At Arsenal Yards And What's Next For The Square

Watertown is being rewritten in two places at once this month, and the two stories are moving at very different speeds. Along Arsenal Street, the East End keeps filling in with tenants who were still "coming soon" a year ago. A mile west, the Square is still a 163-page draft that the City Council will pick up on Monday, August 10.

If you live here, that split is the interesting part. One end of town is a finished neighborhood learning its habits. The other is a parking lot behind CVS with a proposed future attached to it. You can walk through both in the same afternoon, and this month you actually should.

The East End filled in while you weren't looking

The clearest sign that Arsenal Yards has moved past its opening chapter is Wonder, the multi-restaurant concept that took the storefront at 541 Arsenal St. next to Poke Works, Chip City, and ButterBird. It opened on March 19 with a ribbon cutting at 4:30 p.m., Mike's Pastry cannoli in Wonder's house green, and Harpoon samples on the pour list. The pitch is that you can order from more than 20 chef-driven menus in one ticket, including plates built around Bobby Flay, José Andrés, Marcus Samuelsson, Tejas Barbecue, and Di Fara Pizza. Whether or not the platform holds up as novelty, the practical read is simpler: on a weeknight when four people in a household want four different dinners, that problem is now solved inside one building.

The other tenant residents have started to build weekly routines around is Mighty Squirrel Taproom & Kitchen, the 7,000-square-foot space beside the River Green. It runs on a longer clock than most of the block. Mornings are a coffee shop with a breakfast menu that includes Dubai chocolate pancakes and avocado toast. Lunch and dinner shift to a global menu with aloo tikki, tuna aguachile, lamb lollipops, birria poutine, and New England-style clam chowder next to the brewery's own beers and hard seltzers. The patio faces Arsenal Yards Park, which is where tennis courts, pickleball courts, a community garden, and a skatepark now sit within a five-minute walk of your entrée.

The rest of the block, honestly

The anchors have not changed. Roche Bros. still handles the weekly grocery run. Majestic 7 is where you go when the movie needs reclining seats and buttery popcorn instead of a couch. City Works, Shake Shack, Kura Sushi, Buttermilk & Bourbon, Condesa, Jersey Mike's, and Tori Jiro fill the rest of the eating decisions. J.Crew Factory and Ulta cover most of the errand-with-a-purpose category. What has changed is density. A year ago you planned a trip to Arsenal Yards. Now it functions the way Wellesley Square or Newton Centre does for their residents, which is to say you end up there without having decided to.

A short August week worth putting on the calendar

The August calendar is unusually load-bearing this year because two of the dates matter beyond their own hour.

1. Monday, August 10, 6 p.m., Watertown Free Public Library, 123 Main St. The City Council, sitting as the Redevelopment Authority, holds its first formal discussion of the Watertown Square Demonstration Project. The meeting is hybrid, streamed on WCA-TV and Zoom, and this is the public comment stage before the Council formally votes. If you have opinions about what goes on the parking lot behind CVS, this is the room.
2. Wednesday, August 19, 11 a.m., River Green in front of Shake Shack. Vanessa Trien and the Jumping Monkeys, the Boston-area family band, do a free outdoor concert. Seating is first come, first serve, and shade is not guaranteed. Bring a blanket. RSVPs are encouraged but not required.
3. Ongoing, Saturday mornings, 10 a.m. Taproom Yoga at Mighty Squirrel. Low-commitment way to test whether the space works for you before deciding it does at 7 p.m. on a Friday.
4. Late August. Arsenal Yards' outdoor fitness classes return on the Arsenal Green after their summer pause, with a rotating lineup of bootcamps, yoga, and barre. Classes are free with an encouraged donation to the Watertown Food Pantry.

If you have out-of-town guests in the second half of the month, the honest route is a morning coffee at Mighty Squirrel, an hour along the Watertown-Cambridge pathway on the Charles, and a mid-afternoon return for the concert. You do not need to explain Watertown to them after that.

What's actually in the 163-page plan

The Demonstration Project is worth understanding on its own terms, because the version residents will hear about in headlines is compressed to the point of being misleading. City Manager George Proakis presented it on April 6, the full draft dropped two days later, and the open house at 9 Galen Street on May 20 walked through the details station by station. The plan focuses on the municipal parking lot behind CVS and adjacent parcels bounded by Spring Street, Summer Street, and Church Street, including the Gray Block (currently home to Tresca's Eating Place, a salon, and a laundromat), the former RMV building, a few houses, and slim edge parcels along Baptist Walk.

Both draft options share the same components. They differ in size.

Two things about that table are worth sitting with. The first is that the garage is deliberately sized to be too small for commuter parking. That is a design decision, not a compromise. The City is trying to protect turnover for the shops around the Square, which is a very different mechanic than the surface lot creates today. The second is that this is a proof-of-concept, not a masterplan. The larger Urban Revitalization Plan for the rest of the Square, prepared with consultant Innes Land Strategies, is scheduled to run through the rest of 2026. What happens on August 10 sets the tone for the bigger conversation.

The Council can approve, modify, or send the Demonstration Project back for revision. It cannot break ground with a vote. Between the Council decision, the Historical Commission notification, state-level review by the Executive Office of Housing and Livable Communities, and MEPA sign-off, the process has more gates than most residents realize.

For homeowners on the Church Street, Summer Street, and Mount Auburn Street sides of the Square, the practical translation is that the block will look about the way it does now for at least the next construction season. For anyone within walking distance of Watertown Square, the more useful question is what a 247-unit building with retail underneath and a public park behind CVS does to the daily texture of the Square in three to five years. That is worth thinking about before the Council votes, not after.

The through-line for residents

The reason to pay attention to both ends of Arsenal Street in the same month is that they are the same story told in two tenses. Arsenal Yards is what a build-out looks like once the tenant list stops changing every quarter and residents stop calling it "the new development." The Square is what the same process looks like on day one, with a public parking lot, a 163-page PDF, and a hybrid Council meeting.

Living here in August 2026 means having a functional opinion on both. The East End is a set of choices about how to spend a Tuesday night. The Square is a set of choices about what your walking distance means in 2029. Neither one is abstract, and both are being decided in public.

If you own a home in Watertown, especially anywhere within a ten-minute walk of the Square or a five-minute drive of Arsenal Yards, those decisions will land on your property in ways that a spreadsheet cannot fully price yet. When you are ready to talk through what the changing East End and the pending Square work mean for your home's position in the market, Diane Basemera works with owners across Watertown and the surrounding suburbs and can start with a straightforward instant home valuation.