Chang beer and mu thod curry lunch at Thanon55, a Seongsu Thai spot

In short

Thanon55 is a Thai restaurant on the second floor of an alley building near Seongsu Station in Seongdong, Seoul. Lunch at Thanon55 was the gamjatang rice noodle soup + shrimp fried rice set, a mu thod curry (S) and a bottle of Chang, the Thai beer, and the mu thod curry topped with fried pork jowl tasted better than the version eaten at a Bangkok restaurant years ago. If you love Thai food, Thanon55 is worth the trip out to Seongsu.

Exterior of the building housing Thanon55 in a Seongsu alley

Good to know

Name
Thanon55 Seongsu Main Branch
Address
16 Ttukseom-ro 9-gil, 2nd floor, Seongdong-gu, Seoul
Hours
11:30–22:00 (break time 15:00–17:00)
Closed
Sundays
Parking
The lot is very tight — Seongsu 2-dong 1-ga Public Parking Lot recommended
Restroom
Inside the building
Ordered
Gamjatang rice noodle soup + shrimp fried rice set, mu thod curry (S), Chang beer

as written by the visitor on Sep 20, 2026

Today I want to introduce Thanon55, a place I visited when I was craving Thai food in Seongsu :) I love Thai food to begin with, so I went looking for a good Thai spot in Seongsu and ended up here. The menu had plenty of variety and the prices were better than I expected, so it made for a great lunch! The set menus in particular felt like good value for what you got, and the portions overall were generous.

Thanon55 Seongsu opening hours and where to park

Thanon55 Seongsu Main Branch is on the 2nd floor of 16 Ttukseom-ro 9-gil, Seongdong-gu, Seoul, open 11:30–22:00 with a break time from 15:00–17:00. Closed on Sundays.

  • 📍Address: 16 Ttukseom-ro 9-gil, 2nd floor, Seongdong-gu, Seoul, South Korea
  • ⏰Hours: 11:30–22:00 / Break time 15:00–17:00
  • Closed: Sundays
  • 🚗Parking: The lot is very narrow, so I'd recommend the public parking lot instead! [Seongsu 2(i)-dong Public Parking Lot]
  • 🚽Restroom: Inside the building
Exterior of the building housing Thanon55 in a Seongsu alley
View of the alley on Ttukseom-ro 9-gil where Thanon55 is located
Thanon55's yellow signboard

It's tucked inside an alley, so look for that yellow sign — it makes it much easier to find.

Entrance leading up to the second floor of Thanon55
Stairway sign directing to Thanon55
Second-floor sign for Thanon55 featuring the Thai flag

Follow the sign up to the second floor and you'll find this sign with the Thai flag on it!

Inside Thanon55: the dining room and the self-serve bar

Interior of Thanon55 decorated to feel like Thailand
Table seating at Thanon55
Interior view of Thanon55 with large windows

The interior at Thanon55 is decorated to really feel like Thailand, so the moment I walked in it felt like I was traveling abroad. The big windows made it bright and cheerful too!

Self-serve bar at Thanon55 with small plates and side dishes

The self-serve bar has small plates in different styles, all of them so cute that it was easy to just grab whichever you liked. There were also side dishes like danmuji (pickled radish) and mu-saengchae (spicy radish salad) — this radish dish was surprisingly delicious. Even though it's Thai food, it suited Korean tastes really well, so it was great to eat alongside the main dishes throughout the meal.

Danmuji and mu-saengchae side dishes

On the table there were Thai-style pickled chilies, chili powder, chili sauce, and other condiments to add to your food.

Thai-style pickled chilies and chili sauce on the table
Chang beer, a Thai beer

And best of all, they had Chang beer! It was the beer I loved during a recent trip to Thailand, so I was thrilled to see it and ordered it right away haha.

Gamjatang rice noodle soup and shrimp fried rice set at Thanon55

Thanon55 has quite a wide variety of dishes, and the prices were better than I expected. The set menus in particular looked like good value, so I ordered the gamjatang rice noodle soup + shrimp fried rice set along with a small mu thod curry. The gamjatang rice noodle soup comes with two big chunks of pork spine bone on top.

Gamjatang rice noodle soup with two pork spine bones on top

The name might make you think of gamjatang (Korean spicy pork bone stew), but in reality it felt more like a spicy Thai rice noodle soup with the bones and meat from gamjatang added in.

Spicy broth of the Thai-style gamjatang rice noodle soup

The meat came off the bone easily and tasted great, and the broth was clean and delicious too.

Meat picked off the bone from the gamjatang rice noodle soup
Close-up of the rice noodles and broth

There was plenty of noodles too, so having it as part of the set made for a really filling lunch. Dip it in the soy sauce they give you and it's a perfect match for Korean tastes 😀

Shrimp fried rice topped with a soft-boiled fried egg

The shrimp fried rice was meant to be a side, but the portion was almost as big as a full dish on its own. There was plenty of shrimp, and the soft-boiled fried egg on top went so well with it! Even ordering just the set alone would probably be quite filling.

Mu thod curry (S): better than the one I ate in Bangkok

Mu thod curry (S) topped with fried pork jowl

And now for the best dish I had that day!! I don't usually go out of my way to order curry, but it looked so good on the menu that I decided to try it. And it was seriously delicious. The meat is fried pork jowl, and you could really taste that crunchy-yet-chewy texture pork jowl has — and even though it's fried, it wasn't greasy at all. There was a generous pile of garlic flakes on top too, which paired perfectly with the pork jowl.

Fried pork jowl sprinkled with garlic flakes

The curry has soft, fluffy egg mixed in, and the way the egg soaked up the curry was also amazing.

Thai curry with soft, fluffy egg mixed in

Eat the rice, curry, fried pork jowl, and chili sauce together in one bite and the combination is genuinely insane. I've had mu thod curry at a restaurant in Bangkok before, and honestly, this was better than that. If you come here, you have to try the mu thod curry at least once!

A plate combining rice, curry, and fried pork jowl

Finishing lunch with a canned Thai drink

From the interior that really feels like Thailand to the Thai beer and the wide range of dishes, Thanon55 let me properly enjoy Thai food.

Thai dishes laid out on the table at Thanon55

On top of everything, the owner was so kind, and since the food is made by Thai staff themselves, it really tasted authentic. For dessert I had a canned Thai drink!! It tasted exactly like the milk tea I bought in Thailand, and it was the perfect way to end the meal 👍

Canned Thai milk tea drink had for dessert

The mu thod curry I had that day was especially delicious, so I think I'll be coming all the way out to Seongsu again for Thai food. If you love Thai food, definitely give Thanon55 a try :)

Where it is

Thanon55타논55

16 Ttukseom-ro 9-gil, 1st floor, Room 203, Seongdong-gu, Seoul, South Korea서울특별시 성동구 뚝섬로9길 16 1층 203호

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