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Cos 18 Leigh

18 Leigh St, Adelaide, South Australia 5000, Australia
+61 8 8231 7611
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  • Excellent73%
  • Very good17%
  • Average4%
  • Poor2%
  • Terrible4%
Travellers talk about
“steak” (46 reviews)
“spatchcock” (7 reviews)
“scallops” (11 reviews)
Closed Now
Australian, Vegetarian Friendly, Vegan Options, Gluten Free Options
$$ - $$$
18 Leigh St, Adelaide, South Australia 5000, Australia
All Details
Write a ReviewReviews (205)
Traveller rating
Traveller type
Time of year

1 - 10 of 200 reviews

Reviewed 1 week ago

Rang a week ago, made a booking for 5 for tonight, visitors over for the Test cricket, didn't get a reminder, so rang to confirm today only to be told the restaurant was fully booked out for 170 people, so tough luck, no booking made...More

Date of visit: December 2018
1  Thank Kaye N
Restaurant's Favourite
Reviewed 17 May 2018 via mobile

In Adelaide for a day and tripped over this gem of a restaurant. We had the most superb eye fillet. So tender, a perfect medium rare. Wonderful ambience right down to a huge bowl of lillies. Highly recommended. Great service too

Date of visit: May 2018
Thank Rosemary k
Reviewed 1 week ago via mobile

A cosy ambience on a cool evening, with some outside seating options. I liked the shared plate option where you can choose 3 starters to share . The Iberico Jamon & buffalo mozzarella bruschetta was a standout . We selected the steak and honey glazed...More

Date of visit: December 2018
Thank 948malcolmm
Reviewed 2 weeks ago via mobile

I have been in previously for lunch and given it 4-stars as the lunch is a bit more casual than I expected. Dinner is a bit more formal without being pretentious. Had the steak as it seemed to be the signature dish, ribeye was perfect....More

Date of visit: December 2018
Thank robstevens8282
Reviewed 4 weeks ago

Celebrated my birthday here,had 50 guests,everyone raved about the food,wine selection and the staff where fantastic.Brilliant night,recommended to everyone,upstairs is the perfect spot. Will 100% be back,when I’m back in Adelaide

Date of visit: October 2018
Thank ashyleeb
Reviewed 9 November 2018

The only word that comes to mind for this establishment is overwhelmed. Kitchen and waiting staff not the diner. The worst creme brûlée ever to be sold- should have gone into the bin; solid as a rock and grainy under a good crisp top. "Your...More

Date of visit: November 2018
4  Thank gmca
Reviewed 5 November 2018 via mobile

Came into Cos 18 Leigh tonight for my birthday, food was incredible I had the scallops to start and kangaroo for main then to my surprise I was gifted with a beautiful happy birthday plate if dessert after wait staff had told the kitchen it...More

Date of visit: November 2018
1  Thank Paradise24089301391
Reviewed 4 November 2018

I recently organised a reunion for a group of 55 people who'd lived and studied together at Flinders Uni. Many, including me, were travelling from interstate. I wanted a private function room and a set price menu with drinks package; Cos couldn't have been better....More

Date of visit: October 2018
Thank Lynne W
Reviewed 28 October 2018

We took a table for 4 on a night when they were around 2/3 full. The waiters were initially attentive but that stopped fairly quickly. Long story short: * the entrees were slow to come, and when they arrived very light on; * the mains,...More

Date of visit: October 2018
2  Thank PaulC59
Reviewed 26 October 2018 via mobile

We were seated upstairs it was just beautiful credit to the chef on the excellent meals. My partner and I enjoyed the cheeses also. Upstairs was just delightful. The staff super friendly will be there maby times more. Oh and the dessert AMAZING

Date of visit: October 2018
Thank Rebecca C
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Ask a question
Questions & Answers
Brooke C
7 August 2018|
AnswerShow all 2 answers
Response from JasonG4145 | Property representative |
We sure do! I think Cos has the best Negroni and espresso martini I’ve ever had. Plus we have around 20 gins (all with their own perfect accompaniments), whiskeys, cocktails and all the usual spirits. Ask our friendly... More
20 January 2018|
AnswerShow all 8 answers
Response from Jason G | Property representative |
Not specifically, no. We obviously reserve the right to refuse entry to anyone if they were really scruffy but dressing casually is fine. I am the owner and I am often seen there in shorts and a polo shirt :)
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Restaurant Details

Rating summary
  • Food
  • Value
Average prices
USD 22 - USD 61
Lunch, Dinner, Drinks
Restaurant features
Outdoor Seating, Seating, Waitstaff, Serves Alcohol, Accepts American Express, Accepts Mastercard, Accepts Visa, Reservations, Private Dining, Highchairs Available, Wheelchair Accessible, Full Bar, Wine and Beer, Accepts Credit Cards
Good for
Business meetings, Special Occasion Dining, Local cuisine, Romantic, Groups
Open Hours
12:00 pm - 10:00 pm
12:00 pm - 10:00 pm
12:00 pm - 10:00 pm
12:00 pm - 10:00 pm
12:00 pm - 11:00 pm
5:00 pm - 11:00 pm
Location and Contact Information
  • Address: 18 Leigh St, Adelaide, South Australia 5000, Australia
  • Location: South Pacific  >  Australia  >  South Australia  >  Greater Adelaide  >  Adelaide
  • Phone Number: +61 8 8231 7611
  • E-mail
COS Restaurant sits in an 1800s built, heritage listed building, situated in the historic and beautifully restored Leigh Street; a short walk from the West End’s major hotels and convenient to Adelaide’s central business district, theatre precinct and Central Market. COS features an extensive wine list, showcasing predominantly South Australian wines from all major regions. You will find well known labels as well as carefully selected boutique wines that match perfectly with our menu. We also have a wide range of beers and spirits available. Dine inside in the comfort of the restaurant or, weather permitting, alfresco out the front or in the beautiful courtyard. We can also cater for your next private function in the character-filled upstairs dining room. Our team of experienced, dedicated and enthusiastic people pride themselves on creating memorable occasions. Their attention to detail and personalised service ensure a unique dining experience.
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