# Seongsu café quiet after 3pm, wide tables and window seats: T Coffee

- By Sohyun Rim (https://superchart.com/en/@euljiro-cafe-nook/)
- Written Sep 15, 2026
- Local places › Cafés › Seongdong, Seoul
- Sponsored: This post was written as part of a paid store visit sponsorship.
- English edition: https://superchart.com/en/@euljiro-cafe-nook/seongsu-large-cafe-window-seat-tea-coffee/
- Also in: [한국어](https://superchart.com/ko/@euljiro-cafe-nook/seongsu-large-cafe-window-seat-tea-coffee/index.md)

## In short

T Coffee is a large café on Achasan-ro near Seongsu Station in Seongdong-gu, Seoul, set one floor below ground with floor-to-ceiling windows and wide spacing between tables, which makes it easy to settle in with a laptop or a book. The cheese cake (7,500 won), closer to a cheese tart in shape, was the standout, alongside a vanilla cold brew latte (7,000 won). T Coffee can fill up before 3pm, so arriving later gives you the calmest seats in the room.

## Good to know

- **Location**: B1, 159 Achasan-ro, Seongdong-gu, Seoul
- **Hours**: Weekdays 09:00–20:00 / Weekends 11:00–20:00
- **Last order**: 19:00
- **Good to know**: Takeout available, separate men's and women's restrooms
- **Original / choco sand cookie**: 4,200 won
- **Cheese cake**: 7,500 won
- **Carrot cake**: 7,500 won
- **Pistachio cream puff**: 6,500 won
- **Biscuit**: 4,000 won (jam +1,000 won)
- **Vanilla cold brew latte**: 7,000 won
- **Coffee price range**: 5,000–7,000 won
- **Filter coffee beans**: Ethiopia Guji Gogugu natural
- **Price reference**: ₩5,000 ≈ $3.7 (2026-09-15)

*as written by the visitor on Sep 15, 2026*

![Storefront view of T Coffee café in Seongsu-dong](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-01-t65v1-900.webp)

I found a stylish café in Seongsu-dong, Seongdong-gu — "T Coffee" — and paid it a visit ☕️

![Vertical photo of T Coffee's interior atmosphere](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-02-p6ksg-900.webp)

The desserts were good, the drinks were good, and even the atmosphere was great — here's my honest review of T Coffee, let's go!

![Entrance leading down to T Coffee's basement level](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-03-7kgg7-900.webp)

## How to find T Coffee: a basement café with floor-to-ceiling windows

T Coffee is one floor down, and even the outdoor stairs leading there were clean and pretty

![Outdoor stairs at T Coffee](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-04-x62ga-900.webp)

It's not crowded and the tables are spaced widely apart, so if you go during off-hours it's peaceful (just note that before 3pm it can get busy!)

![T Coffee seating with wide table spacing](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-05-1wunj-900.webp)

This one's shot wide-angle — even though the café is underground, the floor-to-ceiling window view was really pretty haha

![Wide-angle shot of T Coffee's floor-to-ceiling window view](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-06-2f57w-900.webp)

![Window seating and floor-to-ceiling windows at T Coffee](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-07-1tcse-900.webp)

### Which seats at T Coffee work best for laptop work?

There's a variety of table types, and people doing laptop work seem to use the tall table seats — it had a nice atmosphere for reading or working on a laptop

![Tall table seating good for laptop work](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-08-4ilqu-900.webp)

## T Coffee hours, address and details

- Location | B1, 159 Achasan-ro, Seongdong-gu, Seoul
- Hours | Weekdays 09:00–20:00, Weekends 11:00–20:00
- Last order | 19:00
- Details | Takeout available, separate men's/women's restrooms

![T Coffee counter and interior view](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-09-eph5f-900.webp)

## Desserts and prices at T Coffee in Seongsu

- Original / Choco sand cookie ₩4,200
- Cheese cake ₩7,500

![T Coffee's dessert display case](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-10-ml4ab-900.webp)

- Carrot cake ₩7,500
- Pistachio cream puff ₩6,500
- Biscuit ₩4,000 (add jam ₩1,000)

The dessert selection is compact like this, but it's a clean lineup that pairs well with coffee

![T Coffee's dessert menu board](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-11-trjxf-900.webp)

### Drinks menu: coffee from 5,000 to 7,000 won

T Coffee's drinks are priced ₩5,000–7,000, split between coffee menu items like cold brew, almond latte, and mint latte, and non-coffee items like matcha latte and chai tea. I hear the mint latte gets good reviews, but I just can't bring myself to try it . . . if anyone's up for trying mint, go for it!! I heard it's delicious

![T Coffee's drink menu board](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-12-15svj-900.webp)

The filter coffee uses Ethiopia Guji Gogugu Natural beans — Guji Gogugu? Such an unusual bean name haha

![Sign for Ethiopia Guji Gogugu Natural filter coffee](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-13-1y3lj-900.webp)

## What I ordered: cheese cake and vanilla cold brew latte

- ✅ Cheese cake ₩7,500
- ✅ Vanilla cold brew latte ₩7,000

![T Coffee's cheese cake and vanilla cold brew latte](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-14-157su-1200.webp)

They bring the dessert and drink to your table once ready — a beautifully plated cake and latte haha

![Cake and latte set on the table](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-15-11to9-900.webp)
*T Coffee, Seongsu-dong café*

### The cheese cake at T Coffee looks more like a tart

Starting with the cheese cake — it looked more like a cheese tart cake, and it was absolutely delicious..!

![Cheese cake shaped closer to a tart](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-16-1wa4y-900.webp)

Soft, savory cheese cream on top of a firm tart base — the balance was perfect. The cheese cake had a texture that was easy to scoop with a fork, and it was so good I devoured it in a hurry

![Cross-section of the cheese cake scooped with a fork](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-17-t1x81-900.webp)

### The vanilla cold brew latte comes iced only

For the drink, I ordered the vanilla cold brew latte — think of it as a vanilla bean latte where the espresso shot is swapped for cold brew!

![Iced vanilla cold brew latte served](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-18-1vnx2-900.webp)
*T Coffee's vanilla cold brew latte*

Since it uses cold brew, it's iced only, and it has less milk than the vanilla bean latte — that's the distinctive feature!

![Vanilla cold brew latte with visible layered separation](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-19-ept7x-900.webp)

I stirred it well before drinking — not overly sweet, clean and delicious, a nice vanilla latte haha

![Vanilla cold brew latte stirred and mixed for drinking](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-20-c71as-900.webp)

## Is T Coffee in Seongsu worth a visit?

If you're looking for a large, uncrowded café in Seongsu-dong that's good for laptop work, I recommend T Coffee! The cheese cake was so, so good,,🥧

![Passageway connecting T Coffee to Pizza Slice next door](https://img.superchart.com/images/seongsu-large-cafe-window-seat-tea-coffee/seongsu-large-cafe-window-seat-tea-coffee-21-1iu2o-900.webp)

T Coffee is connected to the pizza place next door (Pizza Slice), and the restroom is past Pizza Slice — separate men's and women's, and totally clean haha

## Where it is

- T Coffee (티 커피)
- B1, 159 Achasan-ro, Seongdong-gu, Seoul, South Korea
- 서울특별시 성동구 아차산로 159 지하1층
- 37.5433996, 127.0618187
- Google Maps: https://www.google.com/maps/search/%ED%8B%B0%20%EC%BB%A4%ED%94%BC/@37.5433996,127.0618187,17z

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