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Union Bistro

Certificate of Excellence
$$ - $$$
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3 Wilcox St, Castle Rock, CO 80104-3300 (South Street)
Tue - Thu 11:30 am - 9:00 pm
Fri - Sat 11:30 am - 10:00 pm
More Info
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225 Reviews from our TripAdvisor Community

Traveler rating
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Time of year
Showing 224: English reviews
Larkspur, Colorado
Level Contributor
14 reviews
11 restaurant reviews
common_n_restaurant_reviews_1bd8 6 helpful votes
4 of 5 bubbles Reviewed 1 week ago

We really like this restaurant. Both the bar area and main dining area have good ambience. The food and drinks are very good, especially during happy hour.

Thank Lloyd837
Greeley, Colorado
2 reviews
4 of 5 bubbles Reviewed 1 week ago

Loved the food especially the fries staff was great and helpful always there when you needed something.

Thank Ethanshay
Colorado, United States
Level Contributor
82 reviews
39 restaurant reviews
common_n_restaurant_reviews_1bd8 15 helpful votes
3 of 5 bubbles Reviewed 4 weeks ago via mobile

We had a reservation for 6:15, and were seated around 6:40. We had a large group, so service wasn't terribly speedy. The food arrived and was tasty, but nothing to rave about. Just after 8:00 we were told that there was another large party waiting, and we should probably finish up. I was painfully unimpressed!

Thank Jennwp
1 review
5 of 5 bubbles Reviewed 4 weeks ago via mobile

This is a modern "concept restaurant." The theme is American food with a few twists. There is a slight Mexican flavor, and the rooms are crowded and noisy with happy people. We would have dined at one of the outside tables, but the street was crowded with cruising cars. My dish featured a double-size pork chop, with double decker bones... More 

Thank Rich P
Castle Rock, Colorado
Level Contributor
56 reviews
32 restaurant reviews
common_n_restaurant_reviews_1bd8 9 helpful votes
5 of 5 bubbles Reviewed September 8, 2016 via mobile

Union on Saturdays is our favorite because martinis are half price. The appetizers is good. The meals are also quite good. We love the Union.

Thank vdihle
Parker, Colorado
Level Contributor
11 reviews
9 restaurant reviews
4 of 5 bubbles Reviewed September 6, 2016

Only had lunches there and was never disappointed. Had a salmon BLT there once that was to die for. Inside or outside if the patio is open. Food always seems high quality and well prepared.

Thank undercost
Denver, CO
Level Contributor
149 reviews
88 restaurant reviews
common_n_restaurant_reviews_1bd8 65 helpful votes
5 of 5 bubbles Reviewed August 26, 2016 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 bubbles Reviewed August 22, 2016

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 bubbles Reviewed August 22, 2016

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 bubbles Reviewed August 22, 2016 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

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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
$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
Special occasions, Bar scene, Local cuisine, Families with children
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
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Port St Lucie, Fl
10 months 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?