# Ddareungi bike ride to a quiet Seongsu café window seat: T Coffee - By Eunchae (https://superchart.com/en/@cup-compact/) - Written Sep 21, 2026 - Local places › Cafés › Seongdong, Seoul - Sponsored: This is a review after visiting with items provided by the store. - English edition: https://superchart.com/en/@cup-compact/seongsu-quiet-cafe-chai-tea-window-seat/ - Also in: [한국어](https://superchart.com/ko/@cup-compact/seongsu-quiet-cafe-chai-tea-window-seat/index.md) ## In short T Coffee is a quiet café on the basement level at 159 Achasan-ro in Seongdong, Seoul, between Seongsu Station and Konkuk University Station. The writer rode a Ddareungi public bike to T Coffee, took a back seat by the floor-to-ceiling window and ordered an iced vanilla chai tea for 8,000 won and an iced matcha latte for 7,300 won, and the room emptied out and turned genuinely quiet after 4pm. For anyone looking for a café in Seongsu to study or talk in, T Coffee is the answer. ## Good to know - **Address**: B1, 159 Achasan-ro, Seongdong-gu, Seoul - **Hours**: Mon–Fri 09:00–20:00 / Sat–Sun 11:00–20:00 (last order 19:00) - **Getting there**: 7-minute walk from Seongsu Station (Line 2) Exit 2; 12-minute walk from Konkuk University Station Exit 1 - **Matcha latte (iced)**: 7,300 won - **Vanilla chai tea (iced)**: 8,000 won - **Facilities**: Wi-Fi, takeout, groups welcome / decaf and oat milk swaps available *as written by the visitor on Sep 21, 2026* Today I'm introducing T Coffee (티 커피), a café in Seongsu that's great for studying or working! It looked good for reading too, not just studying. The place is clean and quiet, so it was also good for chatting. Since it's in the basement, it kind of felt like a spot only insiders know about, haha. It's easy to get to since it's between Seongsu Station and Konkuk University Station. I'll review it in detail with photos below! ## Where T Coffee is and when it opens > 📍 159 Achasan-ro, B1, Seongdong-gu, Seoul > ⏰ Mon–Fri 09:00–20:00 (last order 19:00) > Sat–Sun 11:00–20:00 (last order 19:00) > Wi-Fi ⭕️ / Takeout ⭕️ / Group use ⭕️ ![Building exterior showing the basement entrance to T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-01-2g2bn-900.webp) Once you see this, you've basically arrived! T Coffee is on the basement level, but since it's got glass walls, it doesn't really feel underground at all, haha. It's about a 7-minute walk from Exit 2 of Seongsu Station (Line 2), or about 12 minutes from Exit 1 of Konkuk University Station. My boyfriend and I rode Ddareungi bikes there, and there was a bike station right in front too 👀 ![Business hours sign posted at the entrance of T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-02-z62sk-900.webp) Here are the hours. Last order is 7pm! Weekday and weekend opening times differ, so keep that in mind. ![Stairs leading down to T Coffee's basement level](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-03-ql1vb-900.webp) ![Basement-level hallway at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-04-p62t4-900.webp) ![Space near the entrance of T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-05-1q3w7-900.webp) ![Wood-toned interior of T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-06-1voa1-900.webp) ![Seating and lighting inside T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-07-1vjq5-900.webp) ![Overall view of the T Coffee interior](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-08-14bnt-900.webp) ## The restroom is in the pizza place across the way Funny thing — right across is a pizza place, haha. The restroom is on the pizza place's side, so I popped over, and the pizza looked delicious too 🤤 I'll have to try it next time. Anyway, the restroom was clean too. ![Space across from T Coffee toward the pizza shop](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-09-1njp1-900.webp) ![Seating by the big window at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-10-1i0wv-900.webp) ![Interior of T Coffee lit by the large window](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-11-12yga-900.webp) ## Why T Coffee's basement doesn't feel like one One side of T Coffee is a full window, so it didn't feel like a basement at all. The view is nice too, haha. It'd be perfect to sit here reading a book with coffee — I should've brought one that day... The warmth from the wood and lighting is totally my style. But the place was really cold, so I kept my windbreaker on the whole time, lol. ![Table seating toward the back of T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-12-gvo96-900.webp) ![Wooden table and chairs at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-13-1j9mf-900.webp) We took a seat toward the back. Once it passed 4pm, the crowd thinned out and it got really quiet! Quite a few people were there studying alone too. ![Menu board at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-14-js0le-900.webp) ![Drink menu and price list at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-15-18udr-900.webp) ![Dessert display case at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-16-18wsw-900.webp) ![Order counter at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-17-nodzh-900.webp) ## What we ordered at T Coffee and what it cost Here's the menu. The desserts looked delicious too, but we were too full to try any, ㅠㅅㅠ they looked like they'd pair perfectly with coffee, haha. The coffee can be made decaf or with oat milk too. - Matcha Latte Iced ₩7,300 - Vanilla Chai Tea Iced ₩8,000 We ordered! It's the best when your boyfriend pays, best best. ![Self-service bar with water cups and tissues at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-18-1fdgc-900.webp) Even the water cup station was so cute 👀❤️ The T Coffee lettering on the tissues was cute too. ![Tissue printed with the T Coffee logo](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-19-1wngp-900.webp) ## How the vanilla chai tea and matcha latte taste Our drinks were brought to the table! Matcha latte on the left, vanilla chai tea on the right. Chai tea is something I drank a lot when I was in Denmark — think of it as a milk tea with cinnamon and spice notes. It seems to be a bit of a love-it-or-hate-it flavor, haha. I love it! ![Iced matcha latte and vanilla chai tea on the table](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-20-maa5y-900.webp) ![Glass of iced vanilla chai tea at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-21-1axml-900.webp) Clean and pretty, haha. The cup isn't huge, just so you know! ![Two drinks on the table at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-22-1gtxa-900.webp) The chai tea had cinnamon and spice notes blending nicely with a smooth milk base. My boyfriend said it wasn't his style, lol — all the better, I got to drink it all myself 🤤 The vanilla flavor wasn't super distinct, but you could taste the sweetness. This is the matcha latte my boyfriend had. It tasted like a good matcha latte, haha. Nice moderate sweetness, which I liked. Since the place is quiet, it was great for taking a break. Seongsu has a lot of noisy cafés here and there ..^^,,, but this one's saved right away 👀❤️ ![Close-up of the iced matcha latte at T Coffee](https://img.superchart.com/images/seongsu-quiet-cafe-chai-tea-window-seat/seongsu-quiet-cafe-chai-tea-window-seat-23-vvm8u-1200.webp) If you're looking for a quiet café in Seongsu, a good café for studying in Seongsu, I recommend T Coffee 🥰❤️ ## Where it is - T Coffee (티 커피) - 159 Achasan-ro, B1, 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 --- Superchart · https://superchart.com/en/@cup-compact/seongsu-quiet-cafe-chai-tea-window-seat/ · https://superchart.com/llms.txt