About
🍣 OPEN. Izumi Sushi at 115 Third Street in downtown Castle Rock. Read our visit + full menu →
Izumi opened May 11, 2026 with a friends-and-family invite night and quietly soft-opened to the public the same week. The official grand opening is expected in 4–6 weeks (mid-June to early July 2026).
The positioning is authentic Japanese — fish-forward, never-frozen, bluefin tuna only, real crab in the California rolls. Not the spicy-mayo-and-cream-cheese style most American sushi spots run. The owner also runs the Izumi Sushi in Littleton, which serves the more American-style menu. Castle Rock is the authentic-leaning concept.
What To Expect:
- 💵 $10 California Roll with REAL crab — high-end ingredients at honest prices is the through-line of the menu
- 🥃 Curated whiskey + sake program — Macallan 12, Macallan Rare Cask, Macallan Harmony, Yamazaki 12, Don Julio 1942 on the shelf; hot and cold sake too
- 🍣 Specialty rolls: Castle Rock Roll, Izumi Roll, Toro Uni Roll, Kobe Beef Truffle Roll ($29)
- 🍱 Omakase tasting starts at $150 (chef's selection — requires 3-day advance reservation)
- 🌸 Fresh-cut flowers as plate garnish — a real touch from the kitchen
- 🍴 Elevated room and plateware
Coming Soon:
- 🌳 Patio with at least six 4-tops (expected with or shortly after grand opening)
- 🍡 Expanded dessert menu (still being built — surprise dessert from the chef in the meantime)
- 🎉 Grand opening mid-June to early July 2026
- 🌐 Website + Google Business Profile (still in setup; for now, follow @izumisushi_castlerock on Instagram)
Important to Know:
- 🕰️ Closed daily 3–5pm between lunch and dinner — a 4pm walk-in won't work
- 📞 Phone: (720) 749-6172
- 📍 115 Third Street, Castle Rock, CO 80104
📍 Local Insights
💵 $10 California Roll with REAL Crab: The whole menu lands as high-end ingredients at honest prices. California is $10 with real crab (not imitation), specialty rolls top out at $29 for the Kobe Beef Truffle.
🍣 Specialty Rolls Are the Move: The Castle Rock Roll, Izumi Roll, Toro Uni Roll, and Kobe Beef Truffle Roll are the standouts. The Kobe Beef Truffle and Toro Uni come most-recommended by the staff.
🥃 Built for Whiskey + Sake Lovers: Macallan 12, Macallan Rare Cask, Macallan Harmony, Yamazaki 12, and Don Julio 1942 on the shelf. Hot and cold sake too. The bar is the play if you're into either.
🍱 Omakase Tasting Starts at $150: Chef's selection menu — requires reservation at least 3 days in advance. Worth planning for if you want the full experience.
🕰️ Daily 3–5pm Break: Split shift between lunch and dinner. A 4pm walk-in won't work — plan around it.
🌸 Watch for the Plate Garnish: Fresh-cut flowers go on each plate as garnish — a real touch from the kitchen.
🚧 Coming Soon: Patio with 6+ four-tops, expanded dessert menu (still being built), and the official grand opening mid-June to early July 2026. They're soft open right now — full menu, full bar, full service.
📸 See the Visit: All 10 photos from our visit on Instagram — exterior, sushi bar, Kobe Beef Truffle Roll, Castle Rock Roll, Toro Uni, Izumi Roll, salmon fried rice, dessert, and the dining room.
⏰ Hours
👉 Best For
- •Date night
- •Omakase tasting
- •Business dinner
- •Sushi purists
- •Whiskey + sake lovers at the bar
- •$10 California real-crab value
- •Downtown Castle Rock
Also In
Best Restaurants in Castle Rock →Location
115 Third St, Castle Rock, CO 80104Review Sentiment
Based on recent Google reviews
"Open at 115 Third Street in downtown Castle Rock. Google currently shows 5.0 stars from early visitors (sample still small; business has not yet claimed its Google Business Profile). DougCo Social visited 5/14/2026 — high-end authentic Japanese (not American-style sushi) with high-end ingredients at honest prices: never-frozen fish, real crab in California rolls at $10, curated whiskey + sake program (Macallan 12, Macallan Rare Cask, Macallan Harmony, Yamazaki 12, Don Julio 1942), fresh-cut flowers as plate garnish. Highlights from our visit: Kobe Beef Truffle Roll, Toro Uni Roll, Salmon Fried Rice."
What You'll Find
- •$10 California roll with REAL crab
- •Castle Rock Roll
- •Izumi Roll
- •Toro Uni Roll
- •Kobe Beef Truffle Roll ($29)
- •Salmon Fried Rice
- •Omakase tasting ($150+, 3-day reservation)
- •Sashimi & nigiri
- •Hand rolls
- •Whiskey program (Macallan 12, Rare Cask, Harmony, Yamazaki 12)
- •Sake program (hot + cold)
- •Don Julio 1942 on the shelf
- •Fresh-cut floral plate garnish
- •Patio coming with grand opening
- •Dessert menu still being built
📆 Best Times to Visit
Lunch service runs 11am–3pm; reopens for dinner at 5pm — closed daily in between. Weekday dinners (Tue–Thu) are quieter than weekends. Omakase tasting requires reservation at least 3 days in advance. Patio coming with grand opening (mid-June to early July 2026).
❓ Frequently Asked Questions
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