Ttukseom Station makguksu has a clear source-backed name to know: Seongsu Makguksu, a buckwheat noodle restaurant listed at 3 Achasan-ro, 1st floor, Seongdong-gu, Seoul. For anyone building a simple Seongsu Food Guide around cold noodles, lunch sets, and easy subway access, this spot stands out because multiple listings connect it directly with the Ttukseom Station area.12
The most reliable details place Seongsu Makguksu very close to Subway Line 2’s Ttukseom Station. Tabling lists the restaurant as 218 meters from Ttukseom Station, while AutoReserve gives the nearest-station distance as 0.17 km, so the basic takeaway is straightforward: this is a short-walk makguksu option rather than a destination that requires a long detour.12
Ttukseom Station Makguksu Basics

Seongsu Makguksu is presented on Tabling as a makguksu specialty restaurant at 3 Achasan-ro, 1st floor, Seoul, Seongdong-gu. The same address also appears on AutoReserve, and a Polle user review published on April 30, 2026 identifies the location more specifically as the 1st floor of the Do&Can House apartment-type factory building in Seongsu-dong.123
That address consistency matters, because one local social post surfaced a different address phrase alongside a Seongsu Makguksu mention. Since the restaurant-platform listings and the Polle review align on 3 Achasan-ro, that is the safer address to use when planning around Ttukseom Station.123
Hours are also fairly clear, though the wording differs slightly by platform. Tabling lists Monday to Saturday operating hours from 11:00 to 21:00, with a break time from 15:00 to 17:00, and says the restaurant is closed every Sunday.1 AutoReserve breaks the same day into two service windows, 11:00 to 15:00 and 17:00 to 21:00, and adds a last order time of 20:30.2 If you are trying to avoid surprises, those two listings point to the same practical rhythm: lunch service, an afternoon break, dinner service, and no Sunday visit.
The contact number shown on Tabling is 02-6084-0122.1 That is useful if you need to confirm a detail that can change quickly, such as a temporary closure, wait handling, or whether a specific menu item is available at the time you plan to arrive.
What the Menu Listings Show
The central menu item is, naturally, makguksu. Tabling lists three noodle options at 12,000 won each: perilla oil makguksu, water makguksu, and spicy mixed makguksu. It also lists “Seongsu Hansang” at 15,000 won, a set-style menu name that appears again in social food posts discussing the restaurant.14
AutoReserve adds a wider look at the menu around the noodles. Its listing includes extra makguksu for 6,000 won, perilla buckwheat hand-pulled sujebi for 11,000 won, buckwheat king dumplings for 8,000 won, and potato pancake for 13,000 won.2 For a reader deciding how to order, this suggests the restaurant is not only a one-bowl stop: the available listings show both noodle-focused dishes and shareable sides.
A few user-generated posts add context, but they should be read as supporting impressions rather than official restaurant information. A Polle review from April 30, 2026 mentions a menu with plenty of perilla and also mentions boiled pork, while giving the overall rating as 3.5.3 An Instagram post from May 14, 2026 refers to perilla oil makguksu, 100% pure buckwheat, and a lunch set configuration, but it is still an individual experience-based post rather than a formal restaurant notice.5
Another Instagram Reel from April 6, 2026 described Seongsu Makguksu as a new Ttukseom Station restaurant and included prices such as Seongsu Hansang at 15,000 won and extra makguksu at 6,000 won.4 Because those prices also appear in platform menu listings, they help reinforce the basic menu picture, even though the post itself is social food content.
Why It Fits a Seongsu Food Guide
Seongsu is often talked about through cafes, design shops, and busy side streets, but a useful food guide also needs practical, meal-centered stops. Seongsu Makguksu fits that role because the key information is specific: a named restaurant, a close Ttukseom Station location, listed weekday-to-Saturday hours, a Sunday closure, and menu prices that are visible across restaurant platforms.12
It also fits the warmer-weather rhythm of the area. A June 2026 post from Now Seongsu brought up Seongsu Makguksu in the context of hot weather and makguksu, showing how the restaurant is being circulated in local recommendation content.6 That does not turn the post into an official source for operations, but it does help explain why a chilled buckwheat noodle restaurant near Ttukseom Station is becoming part of the neighborhood food conversation.
For planning, the best approach is to treat the platform listings as the backbone and the social posts as atmosphere. The backbone says: Seongsu Makguksu is at 3 Achasan-ro, 1st floor, near Ttukseom Station; it operates Monday through Saturday with a 15:00 to 17:00 break; Sunday is listed as a regular day off; and the menu includes several makguksu options at 12,000 won, plus the Seongsu Hansang at 15,000 won.12

If you are mapping out Ttukseom Station makguksu, Seongsu Makguksu is the most clearly documented option in the provided sources. Keep the address, break time, Sunday closure, and 20:30 last order in mind, then build your visit around the simple appeal of buckwheat noodles close to the station.
References
- 성수막국수 – 테이블링 (테이블링)
- 성수막국수 예약 | 성동구, 서울특별시 (AutoReserve)
- [성수 막국수] 호리님의 리뷰 2026/4/30 (Polle, 2026-04-30)
- 고기리막국수 보다 맛있다고? 뚝섬역 신상 맛집 '성수막국수' 솔직 후기 (Instagram, 2026-04-06)
- 성수 막국수 뚝섬역 엄청 대기줄이 길어서 어떨까하고 가본… (Instagram, 2026-05-14)
- On a 30°C day, what comes to mind first? For us, it's makguksu… (Facebook / Now Seongsu, 2026-06-06)