How to Read a Korean Street Address
Separate the road, the building and the room, then try a verified lookup using Seoul City Hall.
A Korean address becomes much easier to read when you separate three questions: which road, which building and which place inside it? The road-name system answers the first two with a street name and a building number. Apartment blocks, floors and rooms add a further layer. Keeping those layers distinct helps when reading a sign, meeting someone or checking a form.
Start with a public landmark: Seoul City Hall. Its main-building address is 110 Sejong-daero, Jung-gu, Seoul. In Korean, the official address search returns 서울특별시 중구 세종대로 110 (태평로1가). Both point to the same building. The difference is largely the order in which the information is written. Seoul City Hall directions
Read from the road outward
In 세종대로 110, Sejong-daero is the road and 110 is the building number. Jung-gu identifies the district, while Seoul identifies the city. The Korean line begins with the larger administrative area and works toward the building. The English version places the building number before the road name, then moves outward to the district and city.
This makes the most useful pair easy to remember: road name plus building number. Keep the district and city with it, however. A road name alone is not enough to establish a unique destination across the country. Copy the official spelling when possible rather than translating a street's meaning into a new English name.
Road names commonly end in daero, ro or gil. The government's English guide connects these endings with road categories: broad roads, other roads and smaller streets. They belong to the name. Sejong-daero should remain Sejong-daero when copied into a search field. Official English address guide
Numbers can also appear inside a road name. In Insadong 12-gil, the 12 is part of the street's name, not the number of a building. You still need the separate building number for an exact street address. Preserve the whole name, including the numbered branch and suffix, instead of shortening it to “Insadong.”
Use numbers as clues
Building numbers generally increase from a road's designated beginning toward its end. Looking in that direction, odd numbers are assigned on the left and even numbers on the right. If you turn around, your own left and right reverse; the numbering system does not.
The system uses regular distance intervals, rather than simply numbering every doorway consecutively. Gaps therefore do not automatically mean you have missed a building. A number gives an orientation clue, but it cannot tell you whether an entrance is open or which gate a visitor should use. Check the destination's own arrival instructions for those details. Government address portal
A hyphen can be part of a building number, as in a main number with a sub-number. Do not silently discard the second part. Equally, do not assume every hyphenated pair identifies an apartment. Its position in the address, and any accompanying labels, matter.
Street-name signs and building-number plates have different jobs. A directional street sign may show a road name, arrows and a number range. A plate attached at a building identifies that building's address. Read the label and surroundings before treating the largest number in view as your destination.
Keep the inside address separate
The government calls block, floor and room information a detailed address. On Korean forms, 상세주소 is the field to notice. A numbered dong can identify a block within a complex, cheung a floor and ho a unit or room. A neighborhood name ending in dong belongs to a different address layer.
For a hotel, office or apartment complex, the road address may lead you to the right site while the detailed address gets you to the right door. Use the unit information supplied by the recipient or venue. Do not replace it with a nearby building number, a postcode or a map pin.
If a form divides the address across several fields, follow its labels and keep all the required details. For an unfamiliar destination, saving both the Korean address and its official English form is a useful precaution. Add the venue name separately so you can compare it with signs on arrival.
Try the current official lookup
At the time of checking on October 13, the government's working English search was reached through the EN link on the main address portal. Its current direct address is Road Name Address search. An older English-page link no longer opened the search, so start from the homepage if an old bookmark fails.
Enter “Sejong-daero 110” and select search. The tested result showed “110 Sejong-daero, Jung-gu, Seoul,” postcode 04524 and a separately labeled land-lot address. Selecting Korean changed the result to 서울특별시 중구 세종대로 110 (태평로1가). The land-lot entry was 서울특별시 중구 태평로1가 31, identifying 서울특별시청. Keep the two address types separate; do not combine their numbers into one line.
The Ministry of the Interior and Safety's archived 2014 introduction explains the move to road-name addresses. It is useful background, while today's portal supplies the current lookup. Official introductory film
Before setting out, check the complete road name, the complete building number and any interior detail. Those three checks are more useful than trying to memorize every address rule at once.