Gilpost · Seongdong-gu, Seongsu-dong 2-ga
Noodle houseKorean
Ran Kalguksu
란칼국수 Kalguksu is knife-cut noodle soup; one blogger guessed that 'Ran' is the 卵 (egg) of gyeran, which fits the egg-drop kalguksu the house is known for, but the shop itself does not say so.
Compiled from 13 blog posts read in fullSources →
Ran Kalguksu is a noodle shop on the ground floor of the Samwon Building on Seongsuil-ro 8-gil, a short walk from exit 1 of Seongsu Station. The egg-drop kalguksu costs 9,000 won (1,000 more for a large), bibim kalguksu and spicy pork rice are 10,000, summer soy-milk noodles 11,000, the seafood chive pancake 18,000, and boiled pork 30,000 (medium) or 38,000 (large). Rice is free and self-serve; you order on a tablet or kiosk. Two posts say it moved from a smaller unit in the same building. We read 30 posts from 7 June to 4 October 2026; 13 of them describe eating here.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 성수일로8길 42, 삼원빌딩 1층 107,108호 (성수동2가)42 Seongsuil-ro 8-gil, Seongdong-gu, Seoul
- Phone0507-1349-6931
- Typical spend₩8,000 – ₩38,000
- From the station7 posts say it is walkable from the station.
- Floor areaFloor area 92 m² · Status In business
When it opens
Of 8 posts: 5 wrote Mon–Sat 09:00–21:00, 3 wrote 09:00–21:00.
| No day given | 09:00–21:00 | 3 of 8 posts |
|---|---|---|
| Mon–Sat | 09:00–21:00 | 5 of 8 posts |
| Break | 16:00–17:00 | 7 of 7 posts |
| Last order | 20:30 | 3 of 3 posts |
| Closed | Sunday | 8 of 8 posts |
Counted from what bloggers wrote in their posts; we did not confirm it with the restaurant. Where the values differ, it may be a change over time rather than a disagreement, so we show when each one was written.
What sets it apart
- Portion size is the most repeated point: 9 of the 13 posts that ate here called the servings large. Two people sharing one large kalguksu said they refilled their small bowls more than four times and still had noodles left, and another post said the spicy pork rice alone could carry you past dinner.
- Seven posts say it is about two minutes, or roughly 100 m, on foot from exit 1 of Seongsu Station. Two mention the yellow plastic tables on artificial turf out front as the landmark.
- There is outdoor seating in front: five posts describe the yellow tables and chairs set out on the pavement, and one saw a group of foreign tourists eating there.
- Five posts say they ordered on a tablet at the table or on a kiosk.
4 more
- Four posts that ate the boiled pork or the spicy pork said there was no gamey smell; none said otherwise.
- Two posts came with a child. One found a high chair and children's bibs in the corner and a 'Seongdong child-friendly restaurant' sign by the counter; the other mentions a basket of sweets by the door that the child looked forward to.
- Prices are seen as low for Seongsu: three posts said so and none called it expensive. Kalguksu stayed at 9,000 won from the June posts to the October ones.
- Expect a wait at lunch. Three posts waited or saw people queuing outside, one saying there is always a line at lunchtime and another seeing a queue even on a rainy day. No one recorded how many minutes. Posts that came after work, or around 5:40 pm on a holiday, found it quiet.
What 13 bloggers said
gyeran kalguksu
Large portions
We read all 13 in full. The most common claims are “Large portions” (9) and “Roomy” (4).
What they liked
What they struggled with
Things you can check on site
- Reachable by transit 7 of 13 posts
- Outdoor terrace seating 5 of 13 posts
- Self-order screen 5 of 13 posts
- Relocated 2 of 13 posts
- Seats to sit and eat 1 of 13 posts
- High chairs 1 of 13 posts
- Air conditioned 1 of 13 posts
- Review event 1 of 13 posts
- Waiting area 1 of 13 posts
- Signed celebrity photos 1 of 13 posts
- Foreign customers in the room 1 of 13 posts
- Large windows 1 of 13 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Who came, and with whom
- Came with children 2 of 13 posts
- Family visit 2 of 13 posts
- With a friend 2 of 13 posts
- Solo visit 1 of 13 posts
- Group visit 1 of 13 posts
Where it is
We could not find this shop’s own listing on Naver Map, so the link searches for its Korean name around this spot instead.
From the station
Seven posts say it is about two minutes, or roughly 100 m, on foot from exit 1 of Seongsu Station. Two mention the yellow plastic tables on artificial turf out front as the landmark.
Getting inside
No one describes the floor from experience; 'ground floor' appears only in copied addresses. Posts do mention the outdoor tables and the open folding doors at the front.
We don't know whether the entrance has a step or works for a wheelchair or stroller. That doesn't mean there is a problem; nobody wrote about it.
We don't know where the toilet is or whether it is split by gender; no post mentions it.
No one mentioned: Second floor · In a basement · Lift to the floor · Ramp at the door · Step at the entrance · Step-free access · Toilet inside · Accessible toilet · Separate restrooms. That is not the same as there being none — it means we could not confirm it. Worth calling ahead, and do tell us: we will put it here.
How to read these posts
- Someone else paid1 of 13 posts
- Posts saying they paid themselves1 of 13 posts
- Posts saying nothing either way11 of 13 posts
Posts that followed a TV spot
Of the 15 posts we gathered, 2 went up on a single day right after a TV spot and show no sign of a visit. They retell the broadcast, so we left them out of the counts.
We do not discard them. That a TV spot produced a burst of posts is itself something worth knowing about a place, and a star rating will not show it.
When the posts appeared
Month by month
| Month | Posts |
|---|---|
| 2026-06 | 1 |
| 2026-07 | 4 |
| 2026-08 | 4 |
| 2026-09 | 1 |
| 2026-10 | 3 |
What we do not know
- Two posts say the shop expanded by moving from a small unit to its present one inside the same Samwon Building. Nobody says when. The public dataset dated 30 June 2026 still lists unit 104; the current address is units 107–108. All the visits we read appear to be at the new space.
- Opening hours come from the same copied block in eight posts: Monday to Saturday 9:00–21:00, break 16:00–17:00, closed Sundays; three add last orders at 20:30. None says they checked. The 17:00–24:00 hours on 8 August were for a one-day pop-up.
- The phone number 0507-1349-6931 is copied in many posts. Reservations were advertised only for the 8 August pop-up (via Instagram DM or phone); whether you can book an ordinary meal, nobody says.
- Four posts between 28 July and 3 August promote the 8 August pop-up with the bar Daejeotaek in the same order and with the same details; only one says the author was invited. The claim that the broth is made from vegetable stock with dried pollack and shrimp is repeated word for word in several posts as shop copy, so we don't treat it as checked.
Sources (13)
Every number above was counted from the posts below.
- 성수역 맛집 란칼국수 가성비 대박인 계란칼국수, 왕큰 해물부추전 .... 2026-10-04 · 오늘을 현담하다
- [ 성수역 맛집 ] 란칼국수 : 쌀쌀한 날 생각나는 뜨끈한 칼국수 & 해물 부추전 솔직 후기 2026-10-01 · 뽀시래기의 일상 · via Daum
- 성수 칼국수 맛집 란칼국수 미니수육 두부김치 2026-10-01 · All About EV battery · via Daum
- 성수 칼국수 맛집 란칼국수 아이와 다녀온 성수역 맛집 점심 찐후기 2026-09-15 · 햄톨이의 여행 · via Daum
- 프로산책러의 걷고 먹고 또 걷는 여름나기 2026-08-25 · 예민한 우엉맘 조로리의 기록용 다이어리 · via Daum
- 성수 맛집 재방문한 란칼국수 모든 메뉴 도전 중 2026-08-17 · Uworld · via Daum
- 서울 8월 팝업스토어 란칼국수에서 열린 대저택의 밤 성수 분위기 맛집 칵테일바 추천 2026-08-03 · My life <3 · via Daum
- 성수동 팝업 란칼국수 X 대저택 콜라보, 8월 8일 단 하루 대저택의 밤 2026-08-01 · 복스토리 · via Daum
- 성수팝업 란칼국수x대저택 8월 8일에만 만나볼 수 있는 메뉴 추천 2026-07-31 · Meaningful
- 성수 팝업 란칼국수 X 대저택 콜라보 사전예약하고 선물 받기 2026-07-28 · 정오의게임 · via Daum
- 성수역 맛집 란칼국수｜계란 칼국수부터 제육덮밥, 여름 콩국수까지 2026-07-10 · 여행/맛집/데이트 · via Daum
- [서울 / 성동구 맛집] 성수역 비오는날 뜨끈한 칼국수가 땡긴다면 란.... 2026-07-10 · 행우의 행복일상 ฅʕ,,•ᴥ•,,ʔฅ
- 성수 점심 맛집 란칼국수｜칼국수와 미니수육세트 추천😆 2026-06-07 · 호뭉이의 먹고 노는 일상 · via Daum
Of 371 candidate posts we opened 61 and kept 13 as evidence. We stop once 30 are confirmed: beyond that the counts grow in proportion without changing the answer.