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135 Crown Park Avenue, Gaithersburg, MD 20878
(301) 869-8800
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Ranked #1 of 284 Restaurants in Gaithersburg
Certificate of Excellence 2014
Price range: $10 - $30
Sun - Mon 11:00 am - 10:00 pm
Tue - Thu 11:00 am - 11:00 pm
Fri - Sat 11:00 am - 12:00 am
Cuisines: American, Seafood
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Restaurant details
Good for: Bar scene, Special occasions, Entertaining clients
Dining options: Breakfast/Brunch, Lunch, Dinner, Reservations, Late Night
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396 reviews from our community

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Rating summary
Date | Rating
  • English first
  • Japanese first
  • Portuguese first
  • Any
English first
Washington DC, District of Columbia
Top Contributor
69 reviews 69 reviews
56 restaurant reviews
8 helpful votes 8 helpful votes
3 of 5 stars Reviewed December 21, 2014

Good atmosphere and a large restaurant. The bar isn't the most inviting because of the size of the space but a good selection and pricing. The food was good. Not too greasy which I find common around here. The fare was just average as far as selection but good seafood. Service was definitely the best aspect of the restaurant.

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16 reviews 16 reviews
16 restaurant reviews
4 helpful votes 4 helpful votes
3 of 5 stars Reviewed December 21, 2014

Had Sunday lunch at costal flats. The services was very good. The food was above average and the atmosphere is nice for a family type of meal. The restaurant staff are very friendly. The menu is a nice mix of seafood and American dishes. The fish was well cooked but a little small on the portion size. Sides were small... More 

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Columbia, Maryland
Senior Contributor
39 reviews 39 reviews
29 restaurant reviews
4 helpful votes 4 helpful votes
5 of 5 stars Reviewed December 15, 2014

Everything was great. 8 of use had different meals. We all loved everything. Soup, appetizers and main meal was wonderful. We listened to the waitress and she made great suggestion. Stop in and try.

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Olney, Maryland
Senior Contributor
27 reviews 27 reviews
23 restaurant reviews
12 helpful votes 12 helpful votes
5 of 5 stars Reviewed December 9, 2014

Took my son and his girlfriend to dinner on a rainy Saturday night - they have call ahead seating but no reservations! Call Ahead!!!! Open atmosphere with a busy looking bar area for those waiting. Servers were plenty - they appear to use the 'team' approach and everyone was uber helpful - water replenished, food brought, drinks ordered, all seamlessly... More 

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Fairfax, Virginia
Senior Contributor
25 reviews 25 reviews
16 restaurant reviews
10 helpful votes 10 helpful votes
5 of 5 stars Reviewed December 7, 2014

My husband and I like this Coastal Flats for its atmosphere, good food and outgoing staff. But our visit last evening was the best thanks to Patrick, our bartender. Our original intent was to just have one cocktail at the bar while we talked a bit. But Patrick added a dash of fun to our evening by stopping by periodically... More 

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Horsham, United Kingdom
Senior Contributor
36 reviews 36 reviews
27 restaurant reviews
26 helpful votes 26 helpful votes
5 of 5 stars Reviewed December 4, 2014 via mobile

Family meal before we return home to England. All excellent. The welcome. The staff. The service. The ambience. The quality of the food. We will definitely be back. Thanksgiving 2015. Highly recommend a very American dining experience.

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Fairfax, Virginia
Top Contributor
51 reviews 51 reviews
22 restaurant reviews
17 helpful votes 17 helpful votes
5 of 5 stars Reviewed December 2, 2014

The Great American restaurants are wonderful! Coastal Flats is a great example of the impeccable food and high quality of service. We lived in Northern Virginia for 7 years and any of the Great American restaurants (Arties, Coastal Flats, Ozzies, Sweetwater Tavern, etc) were our go-to restaurants for dinner. At Coastal Flats you could never go wrong with their calamari... More 

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Potomac, Maryland
Top Contributor
243 reviews 243 reviews
192 restaurant reviews
59 helpful votes 59 helpful votes
5 of 5 stars Reviewed November 30, 2014

This is another location of the Coastal Flats group of restaurants. The first one in Montgomery County MD. Follows all their other locations: great food, well prepared and environment. Very popular place so expect a wait, as long as 2+ hours. Parking is free at nearby garages, but, requires a 1-2 block walk.

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Gaithersburg, Maryland
Top Contributor
78 reviews 78 reviews
61 restaurant reviews
16 helpful votes 16 helpful votes
5 of 5 stars Reviewed November 25, 2014

We recently went with friends to try a new restaurant in a new community in the area. The service was impeccable, all the food was delicious, and the atmosphere was very nice. I worried that it might be too noisy for us but even though it was a Sunday and the room was pretty full, it was not noisy at... More 

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Bethesda, Maryland
Top Contributor
107 reviews 107 reviews
66 restaurant reviews
46 helpful votes 46 helpful votes
5 of 5 stars Reviewed November 22, 2014

My wife and I tried the new Coastal Flats restaurant in Gaithersburg and found the food to be outstanding. Her crab cakes were arguably the best we have ever tasted. My ribs were great. We enjoyed the mojitos and the key lime pie. It's hard to believe this is a chain restaurant. It was crowded and a bit noisy. Not... More 

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Additional Information about Coastal Flats

Address: 135 Crown Park Avenue, Gaithersburg, MD 20878
Phone Number: (301) 869-8800
Location: United States  >  Maryland (MD)  >  Gaithersburg
Open Hours:
Sunday 11:00 am - 10:00 pm
Monday 11:00 am - 10:00 pm
Tuesday 11:00 am - 11:00 pm
Wednesday 11:00 am - 11:00 pm
Thursday 11:00 am - 11:00 pm
Friday 11:00 am - 12:00 am
Saturday 11:00 am - 12:00 am
Average Prices: USD 10 - 30
Cuisine: American, Seafood

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Posting guidelines
Typical questions asked:
  • Do you have gluten-free options?
  • Is there a dress code?
  • Do you allow dogs on the outdoor patio?