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.

Union Bistro

Certificate of Excellence
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Get directions
3 Wilcox St, Castle Rock, CO 80104-3300 (South Street)
11:30 am - 9:00 pm
Closed now
All hours
Tue - Thu 11:30 am - 9:00 pm
Fri - Sat 11:30 am - 10:00 pm
More Info
Add Photo Write a Review

219 Reviews from our TripAdvisor Community

Traveler rating
Traveler type
Time of year
Showing 218: English reviews
Denver, CO
Level Contributor
149 reviews
88 restaurant reviews
common_n_restaurant_reviews_1bd8 65 helpful votes
5 of 5 stars Reviewed 6 days ago NEW via mobile

Had an awesome meal here. Service was perfect. I had the lamb shoulder. My wife had the steak wedge salad. Both were very good. Coconut cream pie was delicious. Will be coming back.

Thank mogulman
Castle Rock, Colorado
2 reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
5 of 5 stars Reviewed 1 week ago

We live in Castle Rock,CO and dine regularly at Union. Our last visit included old friends who were in town to help their daughter move to the area. Union never disappoints, the food is tremendous, the atmosphere fun, and the martini list cannot be beat. Our friends will be visiting their daughter regularly and asked us to keep Union on... More 

Thank MarkTesmer
Castle Rock
Level Contributor
13 reviews
9 restaurant reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
5 of 5 stars Reviewed 1 week ago

I always enjoy their pork chop. Their filet Mignon is consistently tender and cooked correctly. The wine list is always complimentary to the menu offerings.

Thank Robert R
Castle Rock, Colorado
2 reviews
common_n_restaurant_reviews_1bd8 3 helpful votes
2 of 5 stars Reviewed 1 week ago via mobile

There has been so much hype about the "Union" since it had opened in town a few years ago. Everyone tells us the atmosphere is great, the food is amazing and the prices are reasonable! Well I can tell you that we sat next to the fireplace in the "dinning room" and the only way I could hear my husband... More 

Thank jbreeze43
Castle Pines, Colorado
Level Contributor
4 reviews
3 restaurant reviews
2 of 5 stars Reviewed 2 weeks ago

Although we had a reservation, we still waited 25 minutes to get seated. The space was noisy and sterile. Our waitress was not happy to be working there and it showed in the poor level of service. Although the food was very good, the large plate portions were very small and not cooked as requested. When the waitress finally delivered... More 

Thank swannydave
Hudsonville, Michigan
Level Contributor
13 reviews
8 restaurant reviews
common_n_restaurant_reviews_1bd8 2 helpful votes
5 of 5 stars Reviewed 4 weeks ago via mobile

Went here on a Saturday with a friend and enjoyed happy hour martinis and appetizers! Had a great time! Love castle rock!

Thank Jwier05
Castle Rock, Colorado
Level Contributor
42 reviews
17 restaurant reviews
common_n_restaurant_reviews_1bd8 11 helpful votes
4 of 5 stars Reviewed 4 weeks ago

Union always serves good food. I like that I can always count on finding a few basic dishes, but also some unique ones as well. I have liked everything I have eaten here. The only negative is that the restaurant can be very noisy.

Thank May D
Level Contributor
52 reviews
22 restaurant reviews
common_n_restaurant_reviews_1bd8 10 helpful votes
5 of 5 stars Reviewed July 26, 2016

We were celebrating the night we came here so I think we may have ordered half the menu and just kept eating and drinking wine. It was a great visit to Colorado and eating here was a highlight!

Thank skourasfam
Castle Rock, Colorado
Level Contributor
3 reviews
3 restaurant reviews
common_n_restaurant_reviews_1bd8 1 helpful vote
4 of 5 stars Reviewed July 25, 2016

I was a regular at the Union years ago, but after a bad experience I never went back until just recently when friends encouraged me to try it again as management has changed and I was very pleased with the service and menu, our meal was great and I will return.

Thank Sheryl A
Level Contributor
19 reviews
15 restaurant reviews
common_n_restaurant_reviews_1bd8 3 helpful votes
4 of 5 stars Reviewed July 23, 2016

The food here is delicious! The food has a artisan flare. Happy hour is fun, but really busy! Have been there for lunch, which is more reasonable. Dinner with my daughter. a bit pricey, but it was a special occasion. She had the chicken. She really enjoyed it. Really enough to split or 2 meals! I had salmon which was... More 

Thank Pam F

Travelers who viewed Union Bistro also viewed


Been to Union Bistro? 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
    4.5 of 5 stars
    4.5 of 5 stars
  • Value
    4 of 5 stars
    4 of 5 stars
Average prices
$3 - $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, Families with children, Local cuisine
Open Hours
11:30 am - 9:00 pm
11:30 am - 9:00 pm
11:30 am - 9:00 pm
11:30 am - 10:00 pm
11:30 am - 10:00 pm
Location and Contact Information
  • Address: 3 Wilcox St, Castle Rock, CO 80104-3300
    (South Street)
  • Location: United States  >  Colorado (CO)  >  Castle Rock
  • Phone Number: 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
Ask a question
Port St Lucie, Fl
8 months ago

See all questions (1)

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?