Gilpost · Seongdong-gu, Seongsu-dong 1-ga
Japanese
Yundon
윤돈 Don here reads as short for donkkaseu, the pork cutlet the house serves; the posts do not say what Yun stands for.
Compiled from 8 blog posts read in fullSources →
A pork-cutlet shop on the ground floor of the Seoul Forest AK Valley office complex near Ttukseom Station. It serves loin, cheese and combination cutlets, katsudon and ebidon, plus udon and cold soba, and many posts pair a cutlet with a mini soba or udon. In 2026 posts the loin cutlet is 10,500 won and the combination 12,500 won, so a meal runs just over 10,000 won. We read 17 posts dated 20 July 2025 to 18 September 2026; 8 describe a visit here. Six were set aside because they concern a different Yundon in Suwon, a singer's nickname, or another restaurant in the same building.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 성수일로 99, 서울숲AK밸리 지식산업센터 1층 105호 (성수동1가)99 Seongsuil-ro, Seongdong-gu, Seoul
- Typical spend₩3,500 – ₩12,500
- From the station1 posts say it is walkable from the station.
- Floor areaFloor area 51 m² · Status In business
When it opens
Of 3 posts: 3 wrote Weekdays 11:00–20:00.
| Weekdays | 11:00–20:00 | 3 of 3 posts |
|---|---|---|
| Break | 14:30–17:30 | 2 of 2 posts |
| Closed | 토요일·일요일 | 2 of 3 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
- Five posts said the prices felt easy on the wallet, one calling 10,500 won reasonable given current prices. None called it expensive.
- Four posts called the coating crisp; one noted the cutlet is served on a wire rack so it stays crisp. Two said it was not greasy and two said the meat was thick.
- Three posts said the room is small and four said it is clean. Two mentioned a long single-row table that suits solo diners, and one noted the high ceiling.
- Two posts said there is a wait at lunch. One went in the afternoon to avoid it and found only one other table; a weekly regular said the place is full around 1 p.m. but the line moves quickly. One post said the cutlet is fried to order and took about 13 minutes.
1 more
- Three posts came from repeat customers: one goes weekly with a colleague, one calls it a regular spot, and one returned with her husband to a place she used to frequent from a former job.
What 8 bloggers said
deungsim donkkaseu
Not expensive
We read all 8 in full. The most common claims are “Not expensive” (5) and “Clean” (4).
What they liked
What they struggled with
Things you can check on site
- Cooked to order 1 of 8 posts
- Large windows 1 of 8 posts
- Reachable by transit 1 of 8 posts
- High ceiling 1 of 8 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Who came, and with whom
- Date 1 of 8 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
1 posts say it is walkable from the station.
Getting inside
The address puts it on the ground floor and one post repeated that, but nobody described the entrance from experience.
No post says whether there is a step at the door or whether a wheelchair or stroller can get in. That means we do not know, not that access is poor.
No post says whether the toilet is inside the shop or a shared one in the building.
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
- Posts saying they paid themselves4 of 8 posts
- Posts saying nothing either way4 of 8 posts
Posts that followed a TV spot
Of the 11 posts we gathered, 3 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 |
|---|---|
| 2025-07 | 1 |
| 2025-09 | 2 |
| 2026-02 | 1 |
| 2026-06 | 1 |
| 2026-07 | 2 |
| 2026-09 | 1 |
What we do not know
- Prices have gone up. Posts from July to September 2025 list loin 10,000, cheese 11,000, combination 12,000, katsudon 9,500 and cold soba 8,000 won; July and September 2026 posts list 10,500, 11,500, 12,500, 10,000 and 9,000 won. We only know the rise happened between September 2025 and July 2026.
- Three posts give the same hours, weekdays 11:00 to 20:00; two add a 14:30 to 17:30 break and two say it is closed on weekends. All three copied an info box rather than reporting what they saw. One post adds that it closes on public holidays. An auto-generated post claiming daily 11:00 to 21:00 with Sundays off also had the wrong address, so we ignored it.
- Only one post gave directions: a five-minute walk from exit 4 of Ttukseom Station. Nobody mentioned buses.
- Three posts went with work colleagues and one with a husband. None went with friends, family or children, so we cannot say how it suits those outings.
- Two posts give the same phone number, 02-465-0104. Nobody said whether it takes reservations.
Sources (8)
Every number above was counted from the posts below.
- 성수동 직장인도 줄서서 먹는 돈까스 덮밥 우동맛집 윤돈 2026-09-18 · 공기놀이 놀자
- 뚝섬역 돈까스집 윤돈, 점심 웨이팅 이유가 있었다 2026-07-15 · 내돈내산
- 2602 넷째주 과거의 기록 침착 윤돈 광장시장 2026-07-13 · JJaily Routine
- 26년 5월 마지막날 빠샷 2026-06-01 · 슾상미의 미(美)식생활
- [성동구 돈까스 맛집 윤돈] 뚝섬 성수 직장인 돈까스 맛집 윤돈 2026-02-28 · memory
- 성수동 직장인 점심 맛집 가츠동 먹으러 [윤돈] 2025-09-08 · 단디의 단디단 여행
- [성수] 직장인 점심 일식 돈까스 맛집 윤돈 2025-09-01 · 쩝쩝박사 키키의 리뷰일기
- 성수 윤돈 모둠카츠&냉모밀 후기｜직장인 점심·혼밥으로 딱! 2025-07-20 · 영이의 Chilling
We opened all 321 candidate posts and kept 8 as evidence.