The stretch of Castro Valley Boulevard between Redwood Road and Santa Maria Avenue does more work in September than most East Bay main streets do all year. In the space of about three weeks, the same half-mile hosts a new 28,000-square-foot dim sum hall on one end, a food hall's First Friday block party in the middle, a two-day street festival that shuts the whole thing down to cars, and the Saturday farmers' market a block off in the BART lot.
If you have lived here for a while, you have watched the boulevard change under you. This is a snapshot of what that change actually looks like as August rolls into September 2026, and where a Saturday morning is best spent.
The interesting thing about Castro Valley right now is not any single opening or event. It is that the boulevard has quietly become dense enough that you can plan a full weekend without leaving it.
The east end is now anchored by a banquet hall
The Rite Aid at 3868 Castro Valley Blvd sat empty from August 2023 until last fall, when an unusual replacement finally landed. HL Peninsula, which KRON4 reported opened October 16, 2025, claims the title of largest Cantonese restaurant in the United States. The Castro Valley Forum's coverage put the numbers in perspective: 28,000 square feet, roughly 800 seats in the main hall, nine private VIP rooms, and a total capacity that runs past 1,200 when the private rooms fill.
For a scale reference, the Massachusetts restaurant most often cited as the country's biggest banquet hall, Kowloon in Saugus, tops out around 1,200. The Castro Valley building beats it, on the same boulevard where two years ago you were buying shampoo.
Next door, Mei Mei Market opened as part of the same project, which was approved by Alameda County Public Works in August 2024 after a Castro Valley Municipal Advisory Council endorsement. Weekend dim sum runs 10 a.m. to 2:15 p.m., weekday lunch starts at 10:30. Parking is in front, and the lot has enough turnover midday that a walk-in wait is often shorter than it looks from Yelp photos.
First Fridays at the Marketplace, translated
The Castro Valley Marketplace at 3295 Castro Valley Blvd anchors the west end. If you have driven past it a hundred times without stopping, here is what First Friday actually is now: a free monthly event on the first Friday of each month, 5 to 8 p.m., with local vendors, live music, and family activities laid on top of the regular merchant hours. The building itself stays open 8 a.m. to 9 p.m. daily.
The tenants worth knowing by name, not category:
- Castro Valley Natural Grocery on the ground floor, the anchor grocery, from the same team as Alameda Natural Grocery
- Akemi Sushi, daily 10:30 a.m. to 7:30 p.m.
- Baron's Quality Meats & Seafood, a traditional butcher, not a case at the back of a grocery
- Amphora Nueva Olive Oil Works for tasting flights
- Seven Hills Baking Company, which longtime customers still hunt down for seasonal Irish soda bread
- Beard Papa's cream puffs
- The Cannery Kitchen & Tap for sit-down meals with a patio
- The Night OWL and Oculto for evenings
- Pizza The Bay upstairs, which Eater SF has praised for its sourdough pies and which regulars concede is easy to miss because it is not on the ground floor
The Marketplace sits about two blocks from Castro Valley BART, which matters for the weekend plan below.
The Fall Festival is closer than you think
The Castro Valley and Eden Area Chamber of Commerce is running the 54th Annual Fall Festival in September 2026 on the same footprint it has used for years: Castro Valley Boulevard between Redwood Road and Santa Maria Avenue, the block that sits directly between HL Peninsula and the Marketplace. Admission is free.
For sense of scale, the Spectator's coverage of the 50th edition estimated 32,000 attendees over the two days, on a boulevard that normally sees car traffic and not much foot traffic. The festival started in 1972 and paused for two years during COVID, so this year's edition is the 54th chronologically even though fewer than 54 have actually run.
What that Chamber-run weekend actually delivers, based on last year's Forum preview, is a lineup of more than 25 food vendors down the center of the boulevard. Returning names include Corn Dog Express, Bizuri Ice Cream, Island snow cone, Concha Dreams bread, SweetCanes juice, and Iron Horse Kettle Corn. Sample tables spotlight Foutsman's Salami, Jerky Jerks Jerky Hut, Primos Gourmet Food, Freezin' Awesome freeze-dried desserts, FreezyFrosty candy, and Mango Blossom Apiary honey. Alexa's Family Bee Farm, Jenn's Cupcakes, Goldi's Gourmet Spices, and Beard Papa's typically anchor the local-heroes booths.
The stages carry local acts alongside regional bands. Last year's crowd favorite was an 80s tribute band. Traffic and parking around the boulevard tighten sharply during the weekend, which is where BART earns its keep.
The trail closure most weekend hikers have not noticed
If your late-summer routine includes the ridgeline above Lake Chabot, one detail is worth catching before you drive up to Redwood Road. The East Bay Regional Park District has closed the Goldenrod Trail in Anthony Chabot Regional Park between Jackson Grade to the south and its junction with the Jaquin Trail to the north, 24 hours a day, seven days a week, from May 18 through November 20, 2026, for fuels reduction work. Adjacent sections can go down temporarily for equipment.
Practically, that means the popular loops that string Goldenrod into a longer ridgeline day are broken through the fall. The paved 3.52-mile East Shore and West Shore trails from the Lake Chabot Marina are unaffected, as are the Live Oak and Honker Bay loops that most casual bike riders use. The park runs on seasonal gate hours, and May through Labor Day gates are open 6 a.m. to 9 p.m., stepping down to 8 p.m. in September and 7 p.m. in October.
Parking inside the park is $5. On weekend mornings the roadside spaces below the marina fill by about 8:30.
The rest of the boulevard's calendar, in one place
| When | What | Where |
|---|---|---|
| Every Saturday, morning | Urban Village Farmers' Market, EBT dollar-for-dollar match up to $15 | Corner of Redwood Rd and Norbridge Ave, Castro Valley BART parking lot |
| First Friday of the month, 5 to 8 p.m. | Marketplace First Friday | Castro Valley Marketplace, 3295 CV Blvd |
| August 22, 2026 | Splendor of Sitar with Purbayan Chatterjee | Castro Valley Center for the Arts, 19501 Redwood Rd |
| Two days in September 2026 | 54th Annual Fall Festival | Castro Valley Blvd, Redwood Rd to Santa Maria Ave |
The Center for the Arts is worth its own note. It sits about a mile up Redwood Road from the BART station and books a mix of touring classical, world music, dance, and theater that most East Bay residents assume they need to drive to Berkeley or Walnut Creek to see. This month's Purbayan Chatterjee performance is one example. Last month's run of Disney's Newsies is another.
A late-summer walking loop
If you have out-of-town family visiting in the next month, this is the walk. It runs about a mile round trip on the boulevard, then throws you back to BART or your car.
- Park once at the Marketplace's west lot, free.
- Coffee and a Seven Hills pastry inside, then browse the Amphora Nueva olive oil bar.
- Cross the boulevard and walk east along the Fall Festival footprint. Even on non-festival weekends, this is where the newer storefronts, salons, and cafes are clustering.
- Continue east to HL Peninsula for late dim sum or a takeout order from Mei Mei Market next door.
- Cut a block north to the BART lot for the Saturday farmers' market if you have timed it right.
- Loop back on the north side of the boulevard to your car.
That is the whole thing. A boulevard, a BART lot, a food hall, and a banquet hall, all inside about a half mile.
The reason it matters, beyond a good weekend, is that Castro Valley's downtown is quietly building density of the walkable kind. A resident who has been here five years and has not stopped in since the Marketplace opened its second-floor tenants will not recognize the boulevard's rhythm today. A resident who has been here twenty will recognize the geography and almost nothing else.
If you are thinking about what your home is worth against this backdrop, or you are eyeing a move up or down the boulevard, the BloomHomes Team tracks Castro Valley block by block. Start with an instant home valuation or reach us through the Castro Valley neighborhood page. We would rather have the first conversation early than the rushed one later.
