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.

Table with the two-person course and main dishes at Flat Nine

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.

Flat Nine, a jazz dining bar in Sinnonhyeon, main photo
Jazz performance and dining space at Flat Nine

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!

Softly lit hall at Flat Nine

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.

Flat Nine two-person course menu
Flat Nine wine and cocktail menu

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 😭🍷

Wine and cocktail enjoyed during the jazz show

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.

Bread and salad from the Flat Nine course
Course salad with fresh vegetables

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

Appetizer made with shrimp and tomato

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.

Live jazz performance at Flat Nine
Jazz musicians playing on stage
Thick carbonara topped with crispy bacon

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.

Table with the two-person course and main dishes at Flat Nine
Kiwi juice palate cleanser and course dishes

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.

Steak, the main of the Flat Nine course
Cross-section of the steak with rich meaty flavor

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!

Jazz performance continuing during the meal
Widely spaced seating at Flat Nine
Softly lit date atmosphere at Flat Nine

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.

Flat Nine dessert served to finish the course
Sweet, clean-tasting course dessert plate

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!

Dessert with English lettering requested at booking

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 ✨

End of the show and meal at Flat Nine in Sinnonhyeon
Inside Flat Nine during a jazz performance

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

Flat Nine플랫나인

10 Gangnam-daero 65-gil, 5th floor, Seocho-gu, Seoul, South Korea서울특별시 서초구 강남대로65길 10 5층

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