Stylish Seongsu café with a steel counter and layered matcha: T Coffee
In short
T Coffee is a basement café near Seongsu Station in Seongdong-gu, Seoul, on basement level 1 of 159 Achasan-ro, next to PIZZA SLICE. On a weekday (Wednesday) around 3pm, the writer and his girlfriend ordered a cold brew, a matcha latte and a lemon sand cookie for ₩17,300 in total, then took in T Coffee's stainless-steel counter, red brick floor and light wood furniture. T Coffee is a Seongsu café for people who care more about the space than the taste of the drinks.
Good to know
- Location
- B1, 159 Achasan-ro, Seongdong-gu, Seoul (next to PIZZA SLICE)
- Hours
- Weekdays 9am–8pm, weekends 11am–8pm (as posted on the glass door; closing days not confirmed)
- Cold brew
- ₩5,800 (iced only)
- Matcha latte
- ₩7,300
- Lemon sand cookie
- ₩4,200
- Other desserts
- Chocolate sand cookie ₩4,200, biscuit ₩4,000 (jam +₩1,000), carrot cake ₩7,500
- Total for this visit
- ₩17,300 (2 drinks + 1 cookie)
- Seating
- Wooden bench by the floor-to-ceiling window; red chairs and round tables further inside
- Price reference
- ₩17,300 ≈ $13 · ₩5,800 ≈ $4.3 · ₩7,300 ≈ $5.4 (2026-09-30)
as written by the visitor on Sep 30, 2026
Where is Seongsu's T Coffee and how do you find the entrance?
T Coffee isn't on the building's first floor. It's a basement café you reach by going down one level via concrete stairs next to a small sign. He visited with his girlfriend around 3pm on a Wednesday, and it felt really Seongsu-hip.
A white canopy sticks out from the side of the building, with stairs going down underneath it. A small, handwritten-style "T Coffee" sign hangs on the canopy post. Every sign in the photos is in English only — if you're only remembering the Korean name '티 커피,' you might walk right past it.
According to the building directory, the 3rd floor is thisisneverthat, the 2nd floor is Khakis, and the 1st floor is the lobby. T Coffee is listed on B1 alongside PIZZA SLICE. B2 is T gallery. The address printed below the directory is 159 Achasan-ro, Seongdong-gu. If you're searching for a Seongsu station café, start by finding this directory.
The stairs down to T Coffee are bare exposed concrete. The wall just says "1 / B1." On the landing stands a white sign stand with the logo.
What are T Coffee's hours?
The hours posted on T Coffee's glass door are weekdays 9am–8pm and weekends 11am–8pm. That's copied exactly as written on the door. Only the day-by-day hours are listed — closed days weren't confirmed.
- Weekdays — 9am to 8pm
- Weekends — 11am to 8pm
What is the interior of T Coffee in Seongsu like?
Inside, T Coffee has a long corridor with a red brick floor. One side is a full window wall, with a row of bench seats running along it. The shop itself comes into view at the end of the corridor.
T Coffee's counter is solid stainless steel. The shelving behind it matches, the floor is red brick, and the furniture is light wood. Having recently taken an interior design course, he found the space genuinely well done — the kind of place that's satisfying just to look at.
Seen from the side, the espresso machine and dessert case line up in a row. A wooden bench is placed right beside the cold metal counter. Anyone looking for a good-vibe Seongsu café will probably end up taking a photo at this spot in T Coffee.
What's on T Coffee's menu and how much does it cost? Cold brew, matcha latte, lemon sand cookie
This visit's order at T Coffee was cold brew (₩5,800), matcha latte (₩7,300), and lemon sand cookie (₩4,200), for a total of ₩17,300. The menu board is mostly in English, and prices are written as decimals — just read them as thousands of won.
- Cold brew (COLD BREW) — 5.8
- Matcha latte (MATCHA LATTE) — 7.3
- Lemon sand cookie (LEMON SAND COOKIE) — 4.2
His girlfriend picked the cold brew; he went with the matcha latte.
What's in T Coffee's dessert case?
The dessert case at T Coffee held four items: lemon sand cookie, chocolate sand cookie, biscuit, and carrot cake. If you're heading to this Seongsu dessert café, this is what you'll be choosing from.
- Lemon sand cookie — 4.2
- Chocolate sand cookie — 4.2
- Biscuit — 4.0 (add jam +1.0)
- Carrot cake — 7.5
What are the seats and weekday afternoon atmosphere like at T Coffee?
They sat on the wood bench right by the window wall. Bamboo is visible through the window, and a small wood table sits in front of each bench spot. Yellow stools are stacked in a corner. Further inside, there are red chair seats and round tables too.
At 3pm on a weekday, the crowd was about average, and one customer at the red seats had a laptop open.
How are T Coffee's drinks and cookies served?
Both drinks at T Coffee came in tall glasses with big ice cubes, sitting on white coasters. The cookie was wrapped in crinkled white paper and set on a plate.
Cold brew
His girlfriend's pick, T Coffee's cold brew. It's an ICE-only item on the menu.
Matcha latte
His pick, T Coffee's matcha latte. Before stirring, it's milky white on top with green only at the bottom — the matcha settles and forms a distinct layer.
Lemon sand cookie
T Coffee's lemon sand cookie. What he'd always just called a "lemon cracker" turned out to be the actual menu name here. White cream is sandwiched between two round cookies.
The cream is piped thick around the edge of the cookie. Pulling it apart with your hands splits it right in half.
Next to T Coffee: PIZZA SLICE and the restroom
The shop right next to T Coffee is called PIZZA SLICE. Pizza boxes are stacked up as decoration above its entrance. This Seongsu café and the pizza shop share the same basement floor. This post only covers the café side.
T Coffee's restroom is finished in white tile, with a hand towel beside the sink.
Who is Seongsu's T Coffee a good fit for?
If exploring the space matters more than the taste of the drink when choosing a Seongsu café, T Coffee is a good fit. This post focuses on the menu, prices, and space rather than rating the drinks themselves.
Where it is
159 Achasan-ro, B1, Seongdong-gu, Seoul, South Korea서울특별시 성동구 아차산로 159 지하1층
