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Union Bistro

Certificate of Excellence
££ - £££
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3 Wilcox St, Castle Rock, CO 80104-3300 (South Street)
+1 303-688-8159
11:30 - 21:00
Open now
See all hours
Tue - Thu 11:30 - 21:00
Fri - Sat 11:30 - 22:00
More Info
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242 Reviews from our TripAdvisor Community

Traveller rating
Traveller type
Time of year
Showing 241: English reviews
Little Rock, AR
Level Contributor
127 reviews
112 restaurant reviews
common_n_restaurant_reviews_1bd8 31 helpful votes
5 of 5 bubbles Reviewed 2 days ago NEW via mobile

First of all, make reservations which I did for 7 pm. Got there on time and was seated within 7 minutes but saw many people come and go due to no reservations. I read the reviews from here and got the Crunchy Broccoli with Siracha sauce small plate as an appetizer - amazing. Martinis are half price on Saturday so... More 

Thank nancygaye
Castle Rock, Colorado
Level Contributor
10 reviews
7 restaurant reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed 1 week ago via mobile

This is the go to place. I've had 10 meals here I've never been disappointed. The only thing disappointing is sometimes it's crowded and noisy. But maybe there's a reason it's good food reasonably priced nice environment. This is a winner. I hope it stays open for decades.

Thank Andrew D
Castle Rock, Colorado
Level Contributor
21 reviews
15 restaurant reviews
common_n_restaurant_reviews_1bd8 15 helpful votes
5 of 5 bubbles Reviewed 1 week ago via mobile

Perhaps I should have ranked the delicious cocktails first and the tasty small plates a close second!

Thank Betsy B
Parker, Colorado
Level Contributor
4 reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed 3 weeks ago

Last time there, had to wait quite awhile for table (50-60 mins) even with a reservation but ... there was a table near us who had finished eating and was sitting around chit chatting and ordering drinks. After waiting as long as we had the owner went over to ask the ladies if they wouldn't mind giving up their table... More 

Thank Crittle1
Denver, Colorado
Level Contributor
26 reviews
19 restaurant reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
4 of 5 bubbles Reviewed 12 December 2016 via mobile

We made a reservation here to meet up with friends from Denver and Colorado Springs. It had a great menu...something for everyone. We loved the salmon salad, the burger, and the lasagna special. The fries were tasty too. The service was pretty good. I'd suggest it for groups, families or even a date. Perfect for us at lunch.

Thank nlantis
Castle Rock, Colorado
Level Contributor
42 reviews
25 restaurant reviews
common_n_restaurant_reviews_1bd8 12 helpful votes
4 of 5 bubbles Reviewed 7 December 2016

Went to lunch yesterday with a friend and we are both still talking about how great the food was. I had the mussels and fries and my friend chose the crab cakes and tomato basil soup. The mussels were sitting in a delicious broth and served with beautiful, lightly toasted garlic bread to sop up the broth. The fries were... More 

Thank Marle C
Green Valley, Arizona
Level Contributor
219 reviews
101 restaurant reviews
common_n_restaurant_reviews_1bd8 100 helpful votes
4 of 5 bubbles Reviewed 6 December 2016

First time here for dinner visiting Castle Rock. We had lunch here several years ago on another trip. Lively, fun atmosphere. We sat outside by the fire until our table was ready. It was the night of the Castle Rock Star lighting for the holidays so the restaurant was busy. We had made reservations and were seated within 10 minutes... More 

Thank jeanb1876
Castle Rock, Colorado
Level Contributor
5 reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed 2 December 2016

We ordered lunch and got it to go and that is the best lunch and the price is reasonable. Thanks again

Thank bj261
Greenwood Village, Colorado
Level Contributor
88 reviews
30 restaurant reviews
common_n_restaurant_reviews_1bd8 13 helpful votes
4 of 5 bubbles Reviewed 17 November 2016 via mobile

The food has been consistently good each time I've visited. The martini was excellent and was 1/2 price on Saturday! We sat on the patio last weekend and loved being by the fire pit.

Thank 19SandyD19
Denver, Colorado
Level Contributor
12 reviews
9 restaurant reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 bubbles Reviewed 16 November 2016

Union Bistro always exceeds expectations with their gourmet menu and relaxing, casual atmosphere. I especially love the happy hour, but get there early, due to its popularity with the locals, seating goes fast. I would rate this as one of the top restaurants in Castle Rock!

Thank paula_denver

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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 of 5 bubbles
Average prices
US$3 - US$30
Lunch, Dinner
Restaurant features
Television, Wheelchair Accessible, Takeout, Reservations, Outdoor Seating, Seating, Waitstaff, Parking Available, Street Parking, Free Off-Street Parking, Serves Alcohol, Full Bar, Wine and Beer, Accepts American Express, Accepts Mastercard, Accepts Visa, Accepts Discover, Highchairs Available, Free Wifi
Dining Style
Casual Elegant
Good for
Bar Scene, Groups, Special Occasion Dining, Local cuisine, Child-friendly
Open Hours
11:30 - 21:00
11:30 - 21:00
11:30 - 21:00
11:30 - 22:00
11:30 - 22:00
Location and Contact Information
  • Address: 3 Wilcox St, Castle Rock, CO 80104-3300
    (South Street)
  • Location: United States  >  Colorado (CO)  >  Castle Rock
  • Phone Number: +1 303-688-8159
Modern doesn't need to mean uptight. At Union, you'll find the freshest culinary ideas in a comfortable setting. Our menu is a creative collection of American inspired classics with Global influence. Inspired dishes using the freshest ingredients from around the block and around the world. Join us for the best happy hour in Castle Rock. Tuesday through Saturday from 2 - 6 PM in the bar and on the upper patio. Reservations not accepted for Happy Hour. "Community" is more than just a word to us. Nothing's better than sharing a great meal with family and friends. Come and enjoy the neighborhood comfort of our dining room, our spacious bar, the outdoor patio or our famous community table. We look forward to seeing you soon. Join Us!

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of Union Bistro and other visitors
1 question
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Port St Lucie, Fl
over a year ago

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Questions? Get answers from Union Bistro 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?