Old business cards, contracts, and documents often carry lot number (jibun) addresses—the older system based on land parcel numbers. Since mail, delivery, and navigation now run on road addresses, knowing how to convert between the two is genuinely useful.
Why They Look So Different
The two systems use completely different reference points. Lot numbers come from land registry parcel IDs; road addresses come from the physical layout of roads and building positions. The same building can have wildly different-looking addresses in each system:
- Lot number: 서울 중구 태평로1가 31
- Road address: 서울 중구 세종대로 110
- (Same building — Government Complex-Seoul)
How to Convert: Using This Service
- Enter the lot number address in the home search box. Example: 역삼동 737
- The result card shows the road address and English address.
- Use the copy button to copy the road address directly.
Five Real Conversion Examples
| Lot number (jibun) | Road address |
|---|---|
| Jung-gu, Seoul, Taepyeongno 1-ga 31 | 110, Sejong-daero, Jung-gu, Seoul |
| Yeoksam-dong 737, Gangnam-gu, Seoul | Near 152, Teheran-ro, Gangnam-gu, Seoul |
| Sejongno 1, Jongno-gu, Seoul | 161, Sajik-ro, Jongno-gu, Seoul |
| Samseong-dong 159, Gangnam-gu, Seoul | Near 513, Yeongdong-daero, Gangnam-gu, Seoul |
| Jeongja-dong 178, Bundang-gu, Seongnam | Near 166, Jeongjail-ro, Bundang-gu, Seongnam-si |
Things to Keep in Mind
- One lot number area may contain multiple buildings, so search results may show several matches.
- To identify the exact building, cross-reference with the building name, floor, or unit number.
- For apartment complexes, searching by complex name often gives more precise results.
For a deeper comparison of the two systems, see Road Address vs Lot Number.