Sinnonhyeon jazz bar: steak for two, dessert lettering, Flat Nine
In short
Flat Nine is a live jazz dining bar on the 5th floor of a building near Sinnonhyeon Station in Seocho, Seoul. At Flat Nine we had the two-person course with steak, a thick, creamy carbonara topped with crispy bacon, a glass of sauvignon blanc and a mocktail while watching the live show, and the English message we left when booking was written on our dessert plate. Flat Nine suits a Gangnam date where you want good food, atmosphere and live jazz in one evening.

Good to know
- Getting there
- Gangnam Station Exit 10 · 5-min walk (store listing, Oct 6, 2026)
- Location
- 5th floor, 10 Gangnam-daero 65-gil, Seocho-gu, Seoul (walking distance from Sinnonhyeon Station)
- What we ordered
- Course for two (steak, carbonara, sauvignon blanc, 1 mocktail)
- Show fee
- Charged separately to support the quality of the live performance
- Cocktails
- Cocktails not on the menu can be ordered on request
- Review event
- A free bottle of wine on your next visit
- Dessert lettering
- Add an English message to your booking request and it is written on the dessert plate
as written by the visitor on Mar 31, 2026 · not checked with the business
So many people are searching for great Gangnam date spots these days, right? Haha. I was hunting for somewhere with a good mood and found Flat Nine in Sinnonhyeon, where you can have a full meal while listening to jazz, so I went! It's not just a place to eat, it's a place to really soak up the atmosphere 😭💕 If you like this kind of vibe, it's totally your thing… haha.


How to get to Flat Nine in Sinnonhyeon, and what's the mood?
Flat Nine is on the 5th floor of a building you can reach on foot from Sinnonhyeon Station, so access was great! The entrance you see the moment you step out on the 5th floor already felt special ✨ It's like a hidden hideaway, which made me even more excited, haha. Opening the door to soft lighting and jazz playing, I knew right away I'd come to the right place 😭
There were lots of couples and quite a few families too, so the mood was warm and comfortable :) Not too noisy, nicely lively, easy to enjoy without any pressure!

Before you order at Flat Nine: show fee, cocktails and review event
Flat Nine has a separate viewing fee for the sake of performance quality, so keep that in mind! Number 6 on the menu looked so cool. And they said you can ask for cocktails that aren't on the menu too! So cool... that confidence.
There's also a review event where you get a whole bottle of wine on your next visit, so don't forget that! We went with the two-person course, ordered as steak, carbonara, sauvignon blanc and 1 mocktail.


The course is generous and the price was better than I expected, so for Gangnam prices it felt like good value! Cocktails and wine while listening to jazz… this mood is seriously crazy 😭🍷

Flat Nine two-person course: from bread to appetizer
The course starts with bread and a salad, with fresh vegetables that wake up your appetite, so it was a happy start, haha.


It was fresh and light, so the course flowed on very naturally.

The appetizer made with shrimp and tomato was also totally refreshing and perfect for getting the appetite going.
Can you enjoy Flat Nine's performance without knowing jazz?
A live performance starts during the meal… and from that moment I was completely absorbed 😭 Even I, who barely know jazz, got drunk on the mood and kept sipping my wine, lol. The musicians were so good that just listening felt healing ✨
There are moments to clap in the middle, and I followed along by reading the room, lol. It had been so long since I'd had an experience like this, so I loved it even more, haha. The performers, being at their craft, looked so cool... I could fall for them.



How are Flat Nine's carbonara and steak?
The carbonara pasta is the thick, rich style, totally my taste… 😭 Not greasy but nutty, so I kept eating! I cleaned up every bit of the sauce, haha. The bacon is fried crispy, which is really distinctive.
For a palate cleanser they served something like kiwi juice, refreshing and just right for rinsing the mouth.


Then the steak comes out, with real meaty flavor and a great texture, so I was very satisfied 🥩 Eating food of this quality while listening to jazz isn't easy, but Flat Nine is the best in taste, mood and jazz.


When I posted the steak photo on Instagram, everyone went wild, haha. I wanted to keep it a secret spot, but I'm sharing the info for Flat Nine's sake!



Flat Nine seating and date atmosphere
The tables are spaced widely and the lighting is soft, so it was great for talking. The performance flows naturally into the meal, so time flew by 😭 You really have to try this experience... haha. It was the perfect mood for a date 💛 For a blind date or an anniversary, it's a guaranteed success, lol.


How to get English lettering on your Flat Nine dessert
The course ends with dessert, sweet but clean-finishing, so the course feels really well put together! And if you book ahead and write a message in English in the request field, they write it under the dessert like this!

Flat Nine service and will I return?
The staff were kind and timed the dishes well, so the flow was never interrupted! You can feel the care in small details, which made me even happier, haha. It's good just for a meal, and also as a second stop for wine or whiskey while enjoying the show, so it's very versatile :)
I'm 100% coming back… 😭 It's really not easy to find this kind of atmosphere in Gangnam, haha. Even if it's not a special day, it turns an ordinary day into a special one, which I loved ✨


If you're wondering about a Gangnam date spot, I can recommend Flat Nine with confidence! Once you go, you'll understand right away why it's popular, haha. Next time I want to enjoy the full second set too…! I came back today fully recharged 💖
Where it is
10 Gangnam-daero 65-gil, 5th floor, Seocho-gu, Seoul, South Korea서울특별시 서초구 강남대로65길 10 5층
Flatnine: hours, menu and prices →





