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Certificate of Excellence
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2 Dole Drive, Four Seasons Hotel Westlake Village, Westlake Village, CA 91362
+1 818-575-3000
17:30 - 21:30
Closed now
See all hours
Mon - Sat 17:30 - 21:30
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98 Reviews from our TripAdvisor Community

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Showing 96: English reviews
Level Contributor
94 reviews
83 restaurant reviews
common_n_restaurant_reviews_1bd8 30 helpful votes
4 of 5 bubbles Reviewed 1 week ago NEW

The restaurant is nice and cool decorated. They could maybe dim the light a bit. The menu has everything a sushi lover crave + also some other lovely dishes if you prefer other things than raw fish.

Thank sivrei
Los Angeles, California
Level Contributor
25 reviews
14 restaurant reviews
common_n_restaurant_reviews_1bd8 14 helpful votes
5 of 5 bubbles Reviewed 2 weeks ago

It is New Years Eve. I leave Beverly Hills for Westlake Village, counter-intuitively leaving the “heart of the Entertainment industry” on the year’s most festive night. Why? Two words… Chef Masa. Within the last month I have visited the Four Season Hotel Westlake Village 3 of my last 4 weekends. Many reasons, I fell in love with the resort, the... More 

Thank Gary W
Thousand Oaks, California
Level Contributor
65 reviews
43 restaurant reviews
common_n_restaurant_reviews_1bd8 36 helpful votes
3 of 5 bubbles Reviewed 4 weeks ago

This was my third visit to Onyx. I was very impressed the first time, but it seems to have suffered a significant decline in food quality. The Diver Scallops were drenched in a thick sauce that did not enhance the shellfish. The White Dragon Roll was covered with what looked and tasted like bottled Russian dressing. The fish in my... More 

Thank Ed C
Level Contributor
20 reviews
11 restaurant reviews
common_n_restaurant_reviews_1bd8 19 helpful votes
2 of 5 bubbles Reviewed 12 December 2016

Food was mediocre and definitely NOT worth the exorbitant prices - not just because of the the quality but also because of the small portion sizes and taste. We ordered... Wagyu beef: not tender, tasted too "game-y" (not like how Wagyu should taste). Scallops: good but sooooo small (2 for $22 and they were the silver dollar-sized ones, NOT the... More 

Thank Natanya W
Santa Barbara, California
Level Contributor
279 reviews
201 restaurant reviews
common_n_restaurant_reviews_1bd8 46 helpful votes
5 of 5 bubbles Reviewed 10 December 2016

Like all Four Seasons, everything is well done, from decor of the room, to service, to food. Not inexpensive, but really high quality. It definitely has the "feel" of a Four Seasons dining room and that is all good

Thank expectquality1942
Level Contributor
32 reviews
17 restaurant reviews
common_n_restaurant_reviews_1bd8 36 helpful votes
5 of 5 bubbles Reviewed 19 August 2016

Excellent service, as expected in a 4 Seasons, nice ambience, and delicious food. Portions are on the small side, but the flavors are spot on - very fresh! We enjoyed an excellent selection of sushi as well as a couple of rolls and the miso cod which came wrapped in a leaf. Cocktails were good, and they validated our parking... More 

1 Thank Zack_in_CA
Los angeles
Level Contributor
23 reviews
7 restaurant reviews
common_n_restaurant_reviews_1bd8 17 helpful votes
3 of 5 bubbles Reviewed 17 August 2016

WE decided to try Onyx only because of the Travelzoo 2 for 1 coupon. I'm glad that we had dinner there but felt underwhelmed by the portion size. I'm wondering if the kitchen knows which guest is using coupons because the size of the Miso Cod was extremely small. The specialty rolls were great, but not only if you are... More 

Thank Islandwantabe
Los Angeles
Level Contributor
248 reviews
199 restaurant reviews
common_n_restaurant_reviews_1bd8 103 helpful votes
5 of 5 bubbles Reviewed 10 August 2016 via mobile

Onyx has a very elegant inventive menu with a Japanese theme. It's not a sushi bar and too many people are comparing it to their favorite sushi place. Sushi bars are more focused on the quality and variety of fish with local twists in rolls and presentation. Onyx serves sushi but it's not the feature of the restaurant. Now, the... More 

Thank Foosh9
Los Angeles, California
Level Contributor
187 reviews
70 restaurant reviews
common_n_restaurant_reviews_1bd8 158 helpful votes
5 of 5 bubbles Reviewed 5 August 2016

We go to ONYX at least once a month. I love when I get the coupons for the 2 for 1 deal here. It includes 2 appetizers, 2 entrees, 2 drinks and a dessert. Our favorite appetizers are the rolls. I just had the Hamachi Ponzu and the I always order the Wagyu hot stone. Desserts change. There use to... More 

Thank dahlia8
Encinitas, California
Level Contributor
29 reviews
8 restaurant reviews
common_n_restaurant_reviews_1bd8 9 helpful votes
5 of 5 bubbles Reviewed 27 June 2016

This is the best sushi I have had in the whole Southern California area. The service and ambiance is fantastic and this is in a hotel, it is a beautiful hotel so parking is easy with either valet or self parking available.

Thank ABCisme

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Restaurant Details

Rating summary
  • Food
    4.5 of 5 bubbles
    4.5 of 5 bubbles
  • Value
    4 of 5 bubbles
    4.5 of 5 bubbles
Average prices
US$25 - US$60
Japanese, Sushi, Asian
Restaurant features
Reservations, Outdoor Seating, Seating, Waitstaff, Valet Parking, Full Bar, Parking Available, Validated Parking, Wheelchair Accessible, Serves Alcohol
Dining Style
Casual Dining
Good for
Business meetings, Special Occasion Dining, Romantic, Groups
Open Hours
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
17:30 - 21:30
Location and Contact Information
  • Address: 2 Dole Drive, Four Seasons Hotel Westlake Village, Westlake Village, CA 91362
  • Location: United States  >  California (CA)  >  Westlake Village
  • Phone Number: +1 818-575-3000
Specializing in fresh seafood and sushi, ONYX at Four Seasons Hotel Westlake Village offers delectable Asian fare. Backlit wall panels of semi-precious stones, such as carnelian and onyx, create a dramatic dining atmosphere. Bamboo floors, Japanese antiques and chandeliers grace the main dining room, while silk lanterns hanging over the sushi bar give an exotic feel. Watch while the freshest Japanese delicacies are being prepared, or sip a drink at the bar, where colourful aquatic creatures live in a double-sided, 2,000-gallon (7,571-litre) saltwater aquarium. A variety of sushi, sashimi and specialty hand rolls complement delectable Asian-influenced seafood creations. The menu offers many options to sample a variety of dishes, intended to be shared at the table. Also pairing well with Japanese cuisine is an extensive wine list featuring choices from California and around the world.

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of ONYX and other visitors
1 question
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Simi Valley, California
over a year ago

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Posting guidelines
Typical questions asked:
  • Do you have gluten-free options?
  • Is there a dress code?
  • Do you allow dogs on the outdoor patio?