We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.
Want the lowest hotel prices? You're in the right place. We check 200+ sites for you.

The Happy Sumo

££ - £££
Map
Satellite
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Get directions
14647 Delaware St, Unit 100, Westminster, CO 80023-9187
+1 303-920-4400
Website
Today
11:30 - 21:00
Open now
See all hours
Hours:
Sun 12:00 - 21:00
Mon - Thu 11:30 - 21:00
Fri - Sat 11:30 - 22:30
More Info
Add Photo Write a Review

66 Reviews from our TripAdvisor Community

Traveller rating
Traveller type
Time of year
Language
Showing 66: English reviews
2 reviews
2 of 5 bubbles Reviewed 3 days ago NEW via mobile

The restaurant is very nice and the staff was very friendly and professional. The spider roll was very chewy. The dumplings from the sumo sampler appetizer had a very weird taste. The caterpillar roll was very mediocre. Both my wife and I though that the rice, although it tasted fine, had the wrong consistency and the rolls tended to come... More 

Helpful?
Thank Stephane B
Westminster, Colorado
1 review
1 of 5 bubbles Reviewed 2 weeks ago via mobile

We ordered our food to go to be ready in 45 minutes and we didn't receive it till 1 hour and 15 minutes later. While we waited in restaurant 30 minutes, the hostess received a pizza and was scarfing it down pizza in front of everyone who was waiting, way to be gross and unprofessional. When the food finally came... More 

Helpful?
Thank Bethyd542
Thornton, Colorado
Level Contributor
51 reviews
28 restaurant reviews
common_n_restaurant_reviews_1bd8 34 helpful votes
4 of 5 bubbles Reviewed 4 weeks ago

We have been customers since they opened. We have always had pretty good to excellent service. The sushi is always predictably and nicely presented. Taste and flavor always great. On December 20, 2016 we invited our four teenage granddaughters to lunch at a Denver area restaurant of their choice. They picked Happy Sumo. Turtle shells, too many sushi items and,... More 

Helpful?
Thank etschaefer
Boulder, Colorado
Level Contributor
29 reviews
19 restaurant reviews
common_n_restaurant_reviews_1bd8 6 helpful votes
3 of 5 bubbles Reviewed 5 November 2016

Interesting place. Service has been good on our several visits, but the cleanliness is scary, especially since they are serving raw fish. The dirt: Sushi counter was not clean, the foot support on the Sushi Bar Stool was so greasy that it was not possible to rest one's foot on the lower bars and the wooden floor has many dried... More 

Helpful?
Thank Npv4fun
Denver, Colorado
Level Contributor
3 reviews
3 restaurant reviews
5 of 5 bubbles Reviewed 11 September 2016

This is an outstanding restaurant. the Sushi and Sashimi are always fresh excellent. The menu also has some wonderful entrées. Great place for those parties that have sushi eaters and non sushi eaters. My favorite appetizer is the Sashimi plates, and favorite entre is the samurai steak. I comes with tempura or stir fry vegetables. I always go for the... More 

Helpful?
Thank vascsurg2016
Gillette, Wyoming
Level Contributor
73 reviews
30 restaurant reviews
common_n_restaurant_reviews_1bd8 23 helpful votes
3 of 5 bubbles Reviewed 1 August 2016

My husband and I stopped for dinner around 7 pm on a Sunday. The location was well staffed and it wasn't overly busy. The crispy calamari was bland that we went it back and the server removed the charge from the bill. I had the Siam Noodles which had a great balance of noodle to meat to veggie ratio, but... More 

Helpful?
Thank ERBY2014
Aurora, Illinois, United States
Level Contributor
77 reviews
37 restaurant reviews
common_n_restaurant_reviews_1bd8 18 helpful votes
5 of 5 bubbles Reviewed 28 July 2016

We enjoyed our choices at the Happy Sumo! I was delighted to find ingredients like bacon bits, macadamia nuts, and nacho cheese available on a roll! We also tried 2 deserts, and enjoyed them both.

Helpful?
Thank Scott F
Abu Dhabi, United Arab Emirates
Level Contributor
181 reviews
45 restaurant reviews
common_n_restaurant_reviews_1bd8 55 helpful votes
4 of 5 bubbles Reviewed 27 July 2016 via mobile

I loved the variety of food choices, but I was not wowed by my food. The vegetable pot stickers tasted horrible. The edamame was done perfectly. I also had the maki combo, which was good. I'd go back again, but avoid the pot stickers.

Helpful?
Thank hannajomeans
Denver, Colorado
Level Contributor
10 reviews
8 restaurant reviews
1 of 5 bubbles Reviewed 26 July 2016

At the end of June, I took my lady friend to the Happy Sumo in Westminster to try some oriental food. We arrived in time to take advantage of happy hour, which included drinks and some sushi, which I always like to try. The drinks and the sushi were good, but when it came to the main courses, imagine my... More 

Helpful?
Thank MarcusC007
Broomfield, Colorado
Level Contributor
57 reviews
35 restaurant reviews
common_n_restaurant_reviews_1bd8 22 helpful votes
2 of 5 bubbles Reviewed 18 July 2016

I live in Broomfield so the Westminster Happy Sumo restaurant has been somewhere I visit regularly. The food is really good and the atmosphere is pleasantly unique. The one major issue I've been having lately is with their customer service. My most recent issue has been occurring when I call in to place orders to go. I call in and... More 

Helpful?
Thank Theresa B

Travellers who viewed The Happy Sumo also viewed

 

Been to The Happy Sumo? Share your experiences!

Write a Review Add Photos & Videos

Is This Your TripAdvisor Listing?

Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.

Claim Your Listing
Improve this listing

Restaurant Details

Rating summary
  • Food
    4 of 5 bubbles
    Service
    3.5 of 5 bubbles
  • Value
    3.5 of 5 bubbles
    Atmosphere
    4 of 5 bubbles
Cuisine
Japanese, Sushi, Asian
Meals
Lunch, Dinner
Restaurant features
Reservations, Seating, Waitstaff, Wheelchair Accessible, Television, Serves Alcohol
Good for
Child-friendly
Open Hours
Sunday
12:00 - 21:00
Monday
11:30 - 21:00
Tuesday
11:30 - 21:00
Wednesday
11:30 - 21:00
Thursday
11:30 - 21:00
Friday
11:30 - 22:30
Saturday
11:30 - 22:30
Location and Contact Information
  • Address: 14647 Delaware St, Unit 100, Westminster, CO 80023-9187
  • Location: United States  >  Colorado (CO)  >  Westminster
  • Phone Number: +1 303-920-4400

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of The Happy Sumo and other visitors
2 questions
Ask a question
Fort Collins, Colorado
over a year ago

See all questions (2)

Questions? Get answers from The Happy Sumo staff and past visitors.
Posting guidelines
Typical questions asked:
  • Do you have gluten-free options?
  • Is there a dress code?
  • Do you allow dogs on the outdoor patio?