Why Downtown Mill Valley Looks Emptier Than It Really Is This Fall
Most of the dark windows on Throckmorton and Miller already have a business behind them. In mid-August, the Mill Valley Briefing walked every block of downtown and counted 93 street-level storefronts. Sixteen had no open business. Nine of those sixteen already had a confirmed tenant that hadn't opened yet. Since that count, two of the waiting tenants have opened. A gallery show is filling a third address on Miller. Several more are still renovating behind papered glass.
The timing has a cause. This year, Mill Valley rewrote the rules for opening a ground-floor business, and the businesses now arriving signed up under the cheaper, faster process. Here is what's open, what's still coming and which addresses have no tenant yet.
From the sidewalk, a renovation and a true vacancy look the same. On paper they're different. If you count only the seven storefronts with no tenant lined up, downtown's vacancy rate as of August 2026 was 7.5%. The Briefing set that against Cushman and Wakefield figures: a 6% national retail vacancy rate in the second quarter of 2026, and a historical average of 7.4%.
Add the nine spaces under renovation and the rate rises to 17.2%, because you still can't walk into any of them. Some have been dark for a long time. The Briefing named 57 and 60 Throckmorton as buildings that sat empty for years before their new tenants were confirmed.
The same survey offered some perspective. A similar block-by-block count in downtown Evanston, Illinois, found 21% vacancy earlier this year. San Francisco's Union Square and Fisherman's Wharf corridors run near or above 10%. So downtown Mill Valley's true vacancy is about average. Most of what looks empty is construction in progress.
The city changed the rules in two steps. Last November, the City Council eliminated most parking requirements for new businesses. The Briefing describes that ordinance as removing new parking requirements for most changes of use under 5,000 square feet. On April 20, the council approved a rewrite of the commercial zoning code, which took effect May 20. For most ground-floor businesses, the rewrite replaced the old Conditional Use Permit and its Planning Commission review with a quicker Administrative Use Permit handled by city staff.
The fee change was large. A staff report quoted by the Mill Valley Chamber of Commerce put the old conditional use permit at $7,389, plus $342 for a Southern Marin Fire Protection District design review. According to Senior Planner Daisy Allen, the new administrative permit fee is $1,954, and the standard use permit dropped to $5,647. Councilmember Urban Carmel described what he had been hearing from would-be shop owners:
"I want to open up a business here but putting eight or 10 grand into city coffers before I sell even one item is just a huge hurdle for me."
The rewrite also updated the list of uses allowed in the city's four commercial zones. It encourages ground-floor offices, fitness centers, boutique shops and eateries. City officials said the goal was to bring in goods and services you can't get online, and to draw more people onto the sidewalk. That wider list helps explain this fall's tenant mix, which includes two co-working spaces and a kitchen-systems showroom alongside the restaurants.
Milkweed Kids, 12 Miller Ave. This children's clothing shop took the old Sprout space and held its grand opening on Sept. 12.
Lima Nikkei, 17 Throckmorton Ave. Paseo Bistro closed at this address on Dec. 20, 2025. Lima Nikkei moved into the former El Paseo space and soft-opened on Friday, Sept. 18. Marin Buzz described it as a Marin family's restaurant and "a restaurant unlike any other in Marin." The menu is Nikkei, a Peruvian-Japanese fusion: sushi, tiradito, ceviche, robata, katsu and cocktails. Hours are 4 to 9 p.m. Sunday through Thursday and 4 to 10 p.m. Friday and Saturday, and reservations are open on the restaurant's website. The Briefing reported that the license holders are Edwin Raul and Ana Antonia Sandoval.
Dorado 806 Projects, 38 Miller Ave. The gallery's current group show runs Sept. 18 through Oct. 17. The Briefing counted this September exhibition among the arrivals on Miller.
All three opened within a week of each other, about four months after the zoning rewrite took effect.
None of these has a confirmed opening date in any local reporting we found as of early October. The list follows the August survey, with what has been reported since.
As of the Aug. 16 count, these storefronts had no tenant announced:
We couldn't find any newer count or new signing for these addresses through early October. Mill Valley Chamber of Commerce executive director Jim Welte pointed to one reason some corners stay dark: "Developers who have money to purchase, but don't yet have a vision for their space." The cheaper permits make it easier for an operator to sign. They don't help when a building's owner hasn't decided what the space should be. The Briefing keeps a downtown storefront tracker and has said it will update each address as spaces open or tenants are confirmed.
October brings plenty of foot traffic to the new arrivals. The Mill Valley Film Festival runs Oct. 1 through 11, with screenings at the Sequoia Cinema, 25 Throckmorton Ave. New this year is a public hub on the Outdoor Art Club patio, with Mill Valley Market sandwiches and a happy hour.
First Tuesday Art Walk is tomorrow, Oct. 6, from 5:30 to 7:30 p.m. Dorado 806 is taking part, so you can catch its show before it closes Oct. 17. The city is also hosting a coffee chat at Depot Plaza, 87 Throckmorton Ave., during the same window. The next Art Walk is Nov. 3, also 5:30 to 7:30 p.m. By then, a few of the papered windows above may have opened.
If you're keeping tabs on which downtown addresses are next to open, or wondering what all this new activity means for the streets around Lytton Square, Janeen Anderson is glad to talk it through. Let's connect.