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.

The Happy Sumo

14647 Delaware St, Unit 100, Westminster, CO 80023-9187
+1 303-920-4400
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
  • Excellent35%
  • Very good31%
  • Average15%
  • Poor8%
  • Terrible11%
Travellers talk about
“sushi” (36 reviews)
“tuna” (3 reviews)
“north denver” (2 reviews)
Open Now
11:30 a.m. - 9:00 p.m. Hours
Japanese, Sushi, Asian
$$ - $$$
14647 Delaware St, Unit 100, Westminster, CO 80023-9187
All Details
Write a ReviewReviews (80)
Traveller rating
Traveller type
Time of year

1 - 10 of 80 reviews

Reviewed 1 week ago via mobile

Went for my son’s birthday on a Monday night. Had to wait 10 minutes to be seated even though there was 6 people in the restaurant. Lighting sucked, service was mediocre. Took 45 minutes to get teriyaki plates, never got our appetizer, and when we...More

Date of visit: December 2018
Thank COcrazyhouseof5
Reviewed 3 weeks ago via mobile

Stopped in as I was looking for some sushi, usually don’t make it a habit to get sushi on a Friday as most good sushi restaurants get fresh fish flown in beginning of week! Anyway I looked over the menu and ordered the Hamachi Tuna...More

Date of visit: December 2018
Thank SeanandLarue
Reviewed May 14, 2018

Beautiful restaurant! The ambiance is amazing. The service and food were both exceptional. Generous portions and a really nice varied menu add to the experience!

Date of visit: May 2018
Thank Kevin M
Reviewed January 22, 2018

I've had delicious meals here and other times the food was overly salty. The salty happened twice but great meals 3 times. Great menu. Staff is usually friendly.

Date of visit: November 2017
Thank Joziecolorado
Reviewed December 29, 2017 via mobile

The service was lacking and the manager was extremely rude and condescending! I was very disappointed in the lack of respect and customer service. The food wasn’t worth the poor service.

Date of visit: December 2017
Thank Larissa F
Reviewed December 17, 2017

Food was cold and either underdone or burnt. The tofu in the miso soup was hard. The Teriyaki chicken looked like boiled chicken with a brown jelly. The panko fried fish was black and dry. The restaurant was very dark. This isn't trendy it's to...More

Date of visit: December 2017
Thank debusee13
Reviewed November 9, 2017

Our group of 3 had dinner last evening. Our server was excellent and gave helpful suggestions. The restaurant is trendy is set so that the booths feel private for conversation. Even though there was a loud toddler next to us, it was not particularly distracting....More

Date of visit: November 2017
Thank jmOPKS
Reviewed October 6, 2017

Wife and I decided to stop in for lunch one day last week. We were in the area shopping and nothing else sounded especially appealing. First of all, this place is so darn dark that I was tempted to pull out my iPhone flashlight to...More

Date of visit: September 2017
Thank jim6918
Reviewed October 2, 2017

A contemporary, relaxing environment. Many cozy booths as well as other tables. Extensive, creative sushi menu, but also more than the usual number of other appetizers and entrees--the miso-glazed salmon with asparagus was wonderful. We are not sushi experts, but we were with a larger...More

Date of visit: October 2017
Thank Alan M
Reviewed September 9, 2017

It was my first time going to this restaurant and it did not disappoint. The ambiance was fantastic and trendy. The restaurant was very clean. The wait staff was efficient and friendly. The rolls were unique and all of them were delicious. The drinks were...More

Date of visit: September 2017
Thank Sheila R
Nearby HotelsSee all 21 hotels in Westminster
Courtyard by Marriott Denver North/westminster
44 reviews
.64 km away
Candlewood Suites Denver North - Thornton
36 reviews
.75 km away
Doubletree by Hilton Hotel Denver - Thornton
736 reviews
5.10 km away
Fairfield Inn & Suites Denver North/Westminster
118 reviews
5.13 km away
Nearby Restaurants
Your Pie
11 reviews
.89 km away
Lazy Dog Restaurant & Bar
43 reviews
.22 km away
Bitto Bistro Wine & Cheese
78 reviews
.10 km away
Asti D' Italia
87 reviews
.07 km away
Nearby Attractions
Denver Escape Room
132 reviews
5.91 km away
Boondocks Food & Fun
102 reviews
6.36 km away
The Orchard Town Center
23 reviews
.10 km away
36 reviews
1.22 km away
Ask a question
Questions & Answers
Dawn D
November 5, 2015|
Response from 05MK2000 | Reviewed this property |
I honestly don't know.
Improve this listing

Restaurant Details

Rating summary
  • Food
  • Value
Dinner, Lunch
Restaurant features
Takeout, Reservations, Seating, Waitstaff, Serves Alcohol, Full Bar, Television, Wheelchair Accessible
Good for
Child-friendly, Kids
Open Hours
12:00 p.m. - 9:00 p.m.
11:30 a.m. - 9:00 p.m.
11:30 a.m. - 9:00 p.m.
11:30 a.m. - 9:00 p.m.
11:30 a.m. - 9:00 p.m.
11:30 a.m. - 10:30 p.m.
11:30 a.m. - 10:30 p.m.
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
  • E-mail
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