If you have been watching the empty lot across from Ridley's at 10206 W. State Street and wondering when the smoke from the butcher shop finally starts, the honest answer as of late July is: not yet. Anderson Prime American Steakhouse, the two-story, 15,000-square-foot destination the Anderson Reserve family announced back in January 2025, was supposed to open in June 2026. It didn't. BoiseDev checked in on the project on July 21 and reported it has passed a milestone but still has no firm opening date, with Mayor Trevor Chadwick describing exterior design-review revisions that hadn't been mocked up yet at the time of reporting.
For most Star residents that changes exactly one thing about the rest of summer, and it's worth saying out loud: if you had mentally penciled "walk over for a steak" into an August or Labor Day weekend plan, you need a different plan. The good news is the town's own calendar is deeper than the average late-summer stretch, and it's built around a single pivot week most people miss.
Where Anderson Prime actually stands
The planning documents on file with the City of Star still show what was promised at announcement: a bar, a butcher shop, dining space, a second floor, a mezzanine, and a spiral staircase running through a silo. Parking has been reduced from 132 spaces to 130, Mayor Trevor Chadwick told BoiseDev the exterior will see a few changes after the city's design review, and the planning documents still show a bar, a spiral staircase in a silo, a butcher shop, dining space, a second floor, and a mezzanine. That is a lot of building to finish, and no revised opening date has been made public.
The practical read for a resident: don't assume a soft opening in August. If the exterior mock-ups still hadn't been provided to the city as of late July, a fall opening is the earliest reasonable bet, and winter is possible. Watch the site itself. When the standing-seam roof lines get punched in and the parking lot stripes go down, you're inside of six weeks. Until then, it's still a job site.
The weekly rhythm that carries you through August
The steady thing on the Star calendar right now is the City of Star Summer Concert Series at the Star Riverhouse, 960 S. Main Street. The City of Star and the Southwest Idaho Business Alliance host the 2026 Summer Concert Series at the Star Riverhouse, 960 S. Main Street. Two things about it are worth knowing if you're new enough that this is your first full summer here.
First, the every-other-Friday cadence. The concerts run alternating Fridays through August, which means there is a standing off-Friday every other week that the town needs to fill on its own. Helina Marie's Wine Bar runs karaoke at 8 PM on those off-Fridays. It's not advertised the way the Riverhouse lineup is, and it tends to be the kind of thing you find out about from a neighbor rather than a poster.
Second, the rules that catch people out. Outside food is welcome at the Riverhouse concerts and low-back chairs or blankets are the normal setup. You bring a picnic, low backed chairs or blankets, and enjoy live music, outside food is welcome, and no pets. Alcohol has to come from the on-site vendor. Parking gets tight fast; if you're pulling in after the first band starts, you're walking.
A few small things worth putting in the same bucket, because they run on the town's steady weekly clock rather than a specific date:
- Star Library programming at Blake Haven Park and the library building itself, running through the school-year switchover in late August
- Kilroy Coffee Klatch at Warhawk Air Museum, an ongoing Wednesday morning gathering that draws a mix of retirees and history-minded regulars
- The REKO online farmers-market pickup, which lands on Wednesdays and is the closest thing Star has to a standing weekly produce market this year
The August pivot: one Saturday, one Thursday
If August has a structure it comes from two dates.
The Saturday is August 8. The Star Saturday Market runs 10 AM to 3 PM at the Riverhouse, organized by the Southwest Idaho Business Alliance. The Star Saturday Market runs Saturday, August 8th from 10 AM to 3 PM featuring a variety of local Treasure Valley vendors including small businesses, food vendors, crafters, and non-profits. One thing to flag if you've lived in a town with a weekly market before: this is a one-Saturday event this year, not a recurring series. Miss it and it doesn't come back around next weekend.
The Thursday is August 27, and it's the one calendar day this stretch that rewards actually planning ahead. A partial lunar eclipse falls that evening. Start is around 7:23 PM MDT and peak is around 10:12 PM. It lands on a Thursday, which means you don't have the "we'll catch it next weekend" excuse. Star's edges, the lots north toward Firebird and the fields along Highway 44, are the sort of low-light places where a partial eclipse is genuinely worth walking outside for. Idaho's dark-sky credit is real, and the September moon rises about an hour later each night the following week, so this is the last late-summer evening where a naked-eye lunar event sits in the middle of a normal weeknight.
The other date that quietly sits in August is the Annual Pasture Party at Broken Road Ranch, which runs in late June each year and sets the tone for the ranch-property social calendar the rest of the summer. If you missed the June one and someone at the Riverhouse mentions the ranch, that's the reference.
How September actually opens
September in Star has two anchor Saturdays, and they sit two weeks apart in a way that makes the month feel shorter than it is.
September 19 is Art by the River. It runs from 10 AM and is the kind of art-in-the-park event that leans local rather than juried-heavyweight. If your out-of-town family is visiting the weekend after Labor Day and you're tired of driving them to Eagle or the Boardwalk in Garden City, this is the one Star-native answer.
September 26 is the Fall Automotive Swap Meet & Races at Firebird Raceway, the drag strip north of town. It starts at 9 AM. If you moved to Star from a bigger metro and Firebird has been on your someday list, this is the low-commitment introduction. Swap-meet crowd in the morning, cars running through the afternoon, and it functions as the closing bracket on the outdoor season for anyone who spent June through August at the Riverhouse.
Between those two Saturdays, the standing weekly stuff (Helina Marie's karaoke, the library programming, the coffee klatch) is doing most of the work. The concert series will have wrapped by then. State Street on a Friday night in mid-September, until Anderson Prime actually opens, is quieter than it will be a year from now.
The wider valley context worth knowing
One reason the delayed steakhouse matters to Star specifically is that the rest of the valley is not delayed. The STIL is opening its seventh ice cream shop paired with Bumble Coffee in Eagle at 101 E. Riverside Dr., taking over the former Negranti Creamery space, and Vessel Kitchen is opening its first Idaho location in the new Hemingway Building in downtown Eagle. The Boardwalk complex in Garden City has been absorbing new concepts through the summer, including a rooftop cocktail bar. If you were counting on a State Street reason to stay in Star on a given Friday and the reason isn't open yet, understand that the pull east is real this year, and the Riverhouse concerts and the two September Saturdays are functionally the counterweight.
There is also a smaller Star-specific development worth tracking. The Cellars at River's Edge, a wine bar, is slated to open in the next month or two according to co-owner Denise Smith, and plans for the site at 6926 Highway 44 in Star include a speakeasy and an event center. Smith and her husband, Scott Smith, own Sol Invictus Vineyard in Star and will be doing business as the Cellars at River's Edge at the new location in partnership with Melody and Jeremie Wise. That was the March 2026 update. It has not opened as of this writing. The Highway 44 corridor is the more likely August surprise than the State Street lot.
The five dates for the fridge
If you condense the next eight weeks down to what actually needs to be on your calendar, it's a short list:
- Every other Friday through the end of August — Summer Concert Series, Star Riverhouse, free
- Saturday, August 8, 10 AM to 3 PM — Star Saturday Market at the Riverhouse
- Thursday, August 27, 7:23 PM start — partial lunar eclipse, peak at 10:12 PM
- Saturday, September 19, 10 AM — Art by the River
- Saturday, September 26, 9 AM — Fall Automotive Swap Meet & Races at Firebird
Anything Anderson Prime does between now and then is a bonus, not a plan.
If you're weighing a move within Star or thinking about how the State Street corridor changes once the steakhouse actually opens, we track the small stuff so it doesn't blindside a purchase or a listing. Valley Properties is building an early-access list for Star and the rest of the 208. Get on it before the next round of updates goes out.
