Seongsu café on an autumn evening: iced mint latte & oolong, T Coffee

In short

T Coffee is a quiet café on basement level 1 at 159 Achasan-ro in Seongdong, Seoul, near Seongsu Station Exit 2. After a first visit in summer, the writer returned to T Coffee on an autumn evening with her husband, ordering an iced mint latte (7,000 won) and an iced oolong tea (6,800 won), then chatting and getting their own work done. T Coffee suits anyone in Seongsu who values atmosphere and a window view and wants a place to talk, work or study.

Main photo of T Coffee, a quiet café in Seongsu

Good to know

Getting there
Seongsu Station Exit 2 · 7-min walk (store listing, Oct 6, 2026)
Location
Basement level 1, 159 Achasan-ro, Seongdong-gu, Seoul; 488m from Seongsu Station Exit 2
Hours
Daily 11:00–20:00, no break time, last order 19:00
Parking
Not available
Facilities
Takeout available, groups welcome, separate men's and women's restrooms
Mint latte (iced)
7,000 won
Oolong tea (iced)
6,800 won
Price reference
₩7,000 ≈ $5.3 · ₩6,800 ≈ $5.1 (2026-10-22)

as written by the visitor on Oct 16, 2026

Main photo of T Coffee, a quiet café in Seongsu
Atmosphere of T Coffee café in Seongsu
View of the café taken at T Coffee in Seongsu

Why I came back to T Coffee, a quiet café in Seongsu

T Coffee is one of my favorite cafés in Seongsu, a quiet spot that's great for work and study. I liked it so much that after my first visit in summer, I came back in autumn.

The tea and coffee are good, but the view is also really pretty, and the atmosphere is just right too. ✨T Coffee✨ is a café I sincerely recommend to anyone looking for a quiet café in Seongsu. It's good for chatting and good for getting work done.

T Coffee opening hours

T Coffee is open every day from 11:00 to 20:00, with no break time. Last order is at 7 p.m. ✨It's open daily✨

What I ordered this time was an iced mint latte and an iced oolong tea.

Getting to T Coffee, and parking

T Coffee's address is 159 Achasan-ro, Seongdong-gu, Seoul (basement level 1), and there is no parking.

The way to T Coffee, on the basement level of a building on Achasan-ro

It's 488m from Seongsu Station Exit 2. Come out at Seongsu Station on Subway Line 2 and keep going straight; the café is on the basement level of a building, and the atmosphere is so full of charm, honestly.

In summer you can see lush green plants growing outside T Coffee's window, which feels so refreshing! I got curious about how it looks in autumn, winter and spring too, so I thought I should visit every season.

What's the atmosphere like inside T Coffee?

  • Takeout is available
  • Groups can use it
  • Men's and women's restrooms are separate
Atmosphere inside T Coffee's basement level
Seating and interior at T Coffee
Moody interior space at T Coffee

For people who care about a café's atmosphere, I don't think anything beats T Coffee. It's tucked away just enough, and yet it's easy to find.

T Coffee in Seongsu, tucked away just enough
Inside T Coffee, good for conversation
T Coffee interior, good for work and study

A café for dates with my husband, or time alone

I spent quite a lot of time at T Coffee on a date with my husband. We talked cozily, and each did our own things on our phones, and the time just flew by.

Personally, I really love spending time alone in a café, so if you're like me, give it a visit.

T Coffee menu and what to order

The drink I recommend most at T Coffee is the iced mint latte. It's a must-order. It's a clean latte, but I felt like I could taste a little mint chocolate in it too. A charming drink.

T Coffee's coffee menu

T Coffee's coffee menu is as follows.

  • Americano
  • Cold brew
  • Latte
  • Flat white
  • Cappuccino
  • Vanilla bean latte
  • Vanilla cold brew latte
  • Almond latte
  • Mint latte
T Coffee's simple menu

I liked the café even more because the menu is surprisingly not extensive. I warm up more to a simple café than one with a huge menu.

Drinks ordered at T Coffee
Ordered drinks on the table at T Coffee

What does T Coffee's iced mint latte taste like?

Iced mint latte at T Coffee
Refreshing iced mint latte
Recommended menu item at T Coffee, the mint latte
A glass of iced mint latte at T Coffee

The Mint Latte (ice) is ₩7,000. T Coffee's iced mint latte is a refreshing drink, with the kind of charming flavor that keeps coming back to your mind once you've had it. Try it yourself and experience that refreshing latte.

T Coffee's iced oolong tea, if you want a drink that isn't sweet

Iced oolong tea at T Coffee

The OOLONG TEA, ice is ₩6,800. It's a brewed oolong drink, clean and nutty at the same time, and really charming. I sincerely recommend it to anyone looking for a drink that isn't sweet.

T Coffee in the evening: how was the view outside the window?

We visited T Coffee in the evening this time, so we couldn't fully enjoy the view outside the window, but the view from inside is truly beautiful.

T Coffee is a quiet café in Seongsu that makes you a regular the moment you go once, good for chatting, for work, and even for studying.

Window scene at T Coffee, visited in the evening
The view outside the window from inside T Coffee in Seongsu

Where it is

T Coffee티 커피

159 Achasan-ro, Seongdong-gu, Seoul, South Korea (basement level 1)서울특별시 성동구 아차산로 159 지하1층

Open in Google Maps

Local places · Cafés