Gilpost · Seongdong-gu, Seongsu-dong 1-ga
Soup and riceKorean
Jeongseongok
정성옥 Jeongseong means sincere care or devotion, and -ok is an old suffix for a house, so the name reads roughly as 'house of care'.
Compiled from 20 blog posts read in fullSources →
Jeongseongok is a Korean restaurant attached to the Chaevi Stay EV charging station at 337 Ttukseom-ro, Seongsu. It serves one-bowl meals: Gangneung-style jjamppong soft tofu stew (10,000 won), the same with fire-seared brisket (13,000 won) and market-style sundae soup, with buckwheat dumplings, kimchi buckwheat crepes and Sokcho stuffed squid on the side. Three posts by pairs ordered the 25,000-won set for two (two mains plus a crepe and dumplings). Seven posts ordered from a tablet or kiosk at the table, and fifteen took extra rice and side dishes from the self-serve bar. We read 30 posts from June 2025 to August 2026; 20 of them describe an actual meal. We set aside three that were not about this restaurant: one about the Mapo branch, one about another shop at the same station, and a membership promotion.
Data as of · Published ·
Location & hours
- Address서울특별시 성동구 뚝섬로 337, 1층 (성수동1가)337 Ttukseom-ro, Seongdong-gu, Seoul
- Phone0507-1369-6422
- Typical spend₩2,900 – ₩39,000
- From the station1 posts say it is walkable from the station.
- Floor areaFloor area 107 m² · Status In business
When it opens
Of 13 posts: 5 wrote Daily 11:00–22:00, 3 wrote Mon–Sat 10:30–22:00, 3 wrote Sunday 10:30–20:00.
| Daily | 11:00–22:00 | 5 of 13 posts |
|---|---|---|
| Mon–Sat | 10:30–22:00 | |
| Sunday | 10:30–20:00 | |
| Break | 15:00–17:00 | 4 of 4 posts |
| Last order | 21:20 | 5 of 6 posts |
Rows without a count: 3 of 13 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
- Rice will not run short. Fifteen posts went back to the self-serve bar for more rice or side dishes, and one said rice, sides and the side soup are all unlimited. Several posts list the same four sides: cubed radish kimchi, white kimchi, stir-fried fish cake and pickled chili. Three January 2026 posts noted the rice in the self-serve corner is yellow turmeric rice.
- Six posts got free buckwheat dumplings for writing a receipt or photo review; one said a single review earned two large dumplings.
- Nine posts said the portions are large. One writer scooping out the sundae soup said the meat and sausage just kept coming.
- Solo diners are covered. Eleven posts described the seating: single seats at a bar counter, four-person tables and group tables for up to eight. One of the two solo diners said sitting at a four-person table never felt awkward.
What 20 bloggers said
Gangneung jjamppong sundubu
Large portions
We read all 20 in full. The most common claims are “Large portions” (9) and “Not expensive” (7).
What they liked
What they struggled with
Where they disagree
| Salty / strongly seasoned | yes 2 · no 3 |
|---|
Things you can check on site
- Free refills 15 of 20 posts
- Seats to sit and eat 11 of 20 posts
- Self-order screen 7 of 20 posts
- Review event 6 of 20 posts
- Toilet outside 3 of 20 posts
- Complimentary tea or drink 3 of 20 posts
- Air conditioned 3 of 20 posts
- Parking capacity 1 of 20 posts
- Reachable by transit 1 of 20 posts
- Large windows 1 of 20 posts
- Separate restrooms 1 of 20 posts
- Open kitchen 1 of 20 posts
- High chairs 1 of 20 posts
- Origin labelling posted 1 of 20 posts
- Wi-Fi 1 of 20 posts
- Beer served 1 of 20 posts
These are raw counts, not percentages. Someone who did not mention something is not someone who disagreed.
Parking
5 posts say you can park. None say you cannot.
| Posts saying you can park | 5 of 20 posts |
|---|
This is a Seongsu restaurant where you can park. Five posts parked there; the charging lot is behind the building. One post gave a number, saying four cars can park. The same writer charged 10 kWh in the 33 minutes of the meal for 5,900 won. Several posts mention a screen inside that shows charging status while you eat.
Who came, and with whom
- Date 3 of 20 posts
- Solo visit 2 of 20 posts
- Group visit 1 of 20 posts
- Came by car 1 of 20 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
| Toilet inside | yes 0 · no 3 (of 20 posts read) |
|---|---|
| Separate restrooms | 1 of 20 posts |
No post that visited mentioned the floor; only the address says ground floor.
No post said whether there is a step at the entrance or whether a wheelchair or stroller gets in. That means nobody wrote about it, not that access is fine or bad. One post noted two doors, one from the charging lot and one from the sidewalk.
The toilets are outside the restaurant. Three posts said so; one explained you go out the back door to the rear parking lot, with the door code posted on the wall inside. One post that used them said they are separate for men and women.
No one mentioned: Second floor · In a basement · Lift to the floor · Ramp at the door · Step at the entrance · Step-free access · Accessible toilet. 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 themselves3 of 20 posts
- Posts saying nothing either way17 of 20 posts
Posts that followed a TV spot
Of the 27 posts we gathered, 7 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 |
|---|---|
| 2025-06 | 1 |
| 2025-12 | 1 |
| 2026-01 | 4 |
| 2026-03 | 3 |
| 2026-04 | 1 |
| 2026-05 | 6 |
| 2026-06 | 1 |
| 2026-07 | 2 |
| 2026-08 | 1 |
What we do not know
- Opening hours changed in spring 2026. Six posts from January to March 2026 gave a 10:30 opening; four of them listed a 3-5 pm break, and three said it closed at 8 pm on Sundays (one said weekends). Six posts from April 27 onward gave 11:00-22:00 daily, last order 21:20, no break. One June 2025 post had a 9:30 opening Monday to Saturday. Most of these are copied listing blocks, so check before you go.
- On getting there by subway, one post said it is close to Seoul Forest station, while another listed the 7-8 minute walk from that station as a downside. The '503 m from exit 2' line appears in several posts but is copied from the listing, so we did not count it.
- Waiting splits one to one. A post about the third week of June 2026 said they had been turned away by a queue the week before; a post from a May holiday Sunday walked straight in. No post gave a waiting time.
- Seasoning splits two to three. Two posts found it salty (the market sundae soup; the jjamppong tofu and the radish kimchi), three did not (one found the sundae soup a bit bland, one said nothing was strongly seasoned, and one writer's colleagues said the jjamppong tofu was not salty).
- Who gets the free instant coffee by the counter is unclear: three posts simply said it is there, three said it is for EV-charging customers.
- No post called it expensive, and seven said the prices are fair. A meal is 10,000-13,000 won a bowl, or 25,000 won for the set for two. The jjamppong sundae soup was 10,000 won in a March 2026 post and 11,000 won in July, and the set-meal upgrade was 2,000 won in January 2026 but 4,000 won in a post about June. One post each, so we cannot tell whether prices rose.
- Several posts list the phone number 0507-1369-6422. On reservations, one post copied a line saying Naver booking is available for groups of eight or more; no post actually booked.
- Seven posts were not counted as visits: one that only reviews the chargers without saying what was eaten, several generic-sounding praise pieces, a review summary, and two news articles reposted on Chaevi's own blog. The articles' claim that ingredients come from Gangwon province every morning is the company's own statement, so we do not rely on it.
Sources (20)
Every number above was counted from the posts below.
- 2026년 6월 3주차 2026-08-13 · JUST DO IT, JUST DO EAT · via Daum
- 성수동에서 전기자동차 충전하며 점심 혼밥 맛집 | 채비스테이 성수.... 2026-07-22 · 마흔 언저리에서 중년을 외치다.
- [성수 한식] 성수동 주차 가능한 식당, 채비스테이 성수점 정성옥 2026-07-10 · 얼렁뚱땅 블로그
- 점심 핫하네 서울숲 정성옥 강릉짬뽕순두부 후기 2026-06-16 · 희용쓰의 돼일리 · via Daum
- 서울 성수 전기차 충전 가능한 맛집 채비스테이 성수점 정성옥 2026-05-27 · 락락구리의 맛집과 여행
- 26.5.24. 연휴맞이 서울나들이[서울국제정원박람회, 채비스테이 정성.... 2026-05-25 · 노노의 즐거운 일상
- 성수 채비스테이 정성옥 | 성수맛집, 서울숲 맛집, 성수 해장할만한.... 2026-05-19 · 꿀단지 기록
- 후기; (서울 성수) 정갈한고 맛있는 성수동국밥 맛집 '정성옥 성수점.... 2026-05-12 · 여니니 일상블로그
- 성수동국밥으로 유명한 [채비스테이 성수점 정성옥] 방문 후기 2026-05-10 · 당근님의블로그
- 성수 서울숲 맛집 추천 | 채비스테이 성수점 정성옥 후기(+전기차 충.... 2026-05-07 · 잇프피의 하루
- [서울/성수] 성수동 국밥 맛집 / 정성옥 솔직 후기 / 든든한 한끼 추.... 2026-04-27 · happy_day737님의 블로그
- [성동구 성수] 채비스테이 성수점 정성옥 : 해장으로 먹기 좋은 얼큰.... 2026-03-18 · zinlog
- 성수동국밥 정성옥 성수점 해장맛집이네 2026-03-13 · 푸푸의 하루
- 성수동 국밥 얼큰한 강릉 짬뽕순두부 정성옥 성수점 2026-03-04 · 나혜's Pick +
- 성수동국밥 주차 가능한 가성비 혼밥 맛집 정성옥 짬뽕순두부 추천 2026-01-23 · 먹고 놀고 운동하고
- 성수동 국밥 혼밥 맛집 정성옥 순두부찌개보다 맛있는 순두부짬뽕 2026-01-18 · 지미(Jimmy)
- 성수동 맛집 추천, 건강한 강황밥과 진한 국물이 일품인 '정성옥' 2026-01-13 · 베리박스
- 성수동국밥 맛집 발견! 정성옥 성수점(채비스테이) 2026-01-06 · Live today
- 가을 뺏긴 근황 2025-12-07 · 수시로 벅차오르는 사람 · via Daum
- 서울숲 국밥 맛집 - 정성옥 2025-06-20 · 느루일기
Of 307 candidate posts we opened 64 and kept 20 as evidence. We stop once 30 are confirmed: beyond that the counts grow in proportion without changing the answer.