The right conference venue in Seoul depends first on group size. Up to 100 people, Seoul's hanok houses and Seongsu creative spaces give a meeting a setting no hotel can match. From 100 to a few hundred, Floating Island on the Han River and five-star hotel ballrooms lead. Above 1,000, COEX and the Grand InterContinental Seoul Parnas in Gangnam are the city's main choices.
This guide groups Seoul's strongest venues by audience size, with capacities from each venue's own published figures where available.
Seoul conference venues at a glance
Traditional hanok venues (Bukchon, Seochon): board meetings, leadership sessions, dinners. Up to 100.
Seongsu pop-up and studio spaces (Seongsu): launches, partner events, creative workshops. Capacity varies by space.
Floating Island Convention (Han River, Banpo): conferences and evening events with a city view. Several halls on the water.
Four Seasons Hotel Seoul, Grand Ballroom (Gwanghwamun): executive conferences and gala dinners. 834 theatre / 440 banquet.
Dongdaemun Design Plaza (DDP) (Dongdaemun): design-led launches and receptions. Large halls and outdoor plaza.
Grand InterContinental Seoul Parnas, Grand Ballroom (Gangnam, COEX): large conferences with hotel rooms on site. 1,561 theatre / 1,160 banquet.
COEX Grand Ballroom (Gangnam): congresses and large plenaries. 1,800 theatre / 900 banquet.
Up to 100 people: hanok houses and creative spaces
Small leadership meetings, board sessions and partner dinners work best somewhere that feels like Seoul. Traditional hanok venues in Bukchon and Seochon take groups of up to 100 in wooden halls and courtyards a short drive from the central business district. Seongsu's pop-up and studio spaces suit workshops and launches that should feel close to the city's design and retail scene. Both need careful production: AV, catering and interpretation are rarely built in, so they are brought in for the event.
100 to 300 people: Floating Island and hotel function rooms
Floating Island Convention sits on the Han River at Banpo, with several halls and terraces facing the water and the city skyline. It works for conferences by day and receptions by night without changing venue. Hotel function rooms across Gwanghwamun, Yeouido and Gangnam cover this size well when the group is also staying on site.
300 to 1,000 people: five-star ballrooms
The Grand Ballroom at Four Seasons Hotel Seoul holds 834 theatre-style or 440 for a banquet, in Gwanghwamun near the palaces and government district. Dongdaemun Design Plaza (DDP), Zaha Hadid's landmark, suits launches and receptions where the building itself is part of the message. Floating Island's larger halls also work at this size, especially for receptions.
Over 1,000 people: Gangnam's convention district
For congress-scale events, Seoul's capacity sits in Gangnam. The Grand Ballroom at Grand InterContinental Seoul Parnas takes 1,561 theatre-style and 1,160 for a seated banquet, with hotel rooms in the same building. Next door, the COEX Grand Ballroom seats 1,800 theatre-style and 900 for a banquet, with exhibition halls in the same complex for events that combine a plenary with a show floor.
How to choose
Start with the format, not the room. A 200-person conference with a gala dinner may need two venues, or one that converts.
Check where delegates sleep. Gangnam and Gwanghwamun hotels cut transfer time; Floating Island and DDP need planned transport.
Book through a local partner. Many Seoul venues are hard to book from overseas and ask for a deposit before they will hold a date. Local relationships are often what secures the right venue.
Ask what is in-house. Interpretation, hybrid streaming and AV vary widely between venues.
Book early. Plan 4–8 weeks ahead for standard events and 10–16 weeks for large conferences; spring and autumn fill first.
For the full planning process, from brief to on-site operation, read our guide to planning an international conference in Seoul.
Working with Seoul Calling
Seoul Calling is an English-speaking event production company in Seoul that plans and runs corporate conferences for international organisations, for 50 to 1,000 people. We source and negotiate venues in Korean and run interpretation, hybrid streaming, AV and catering with our own team. Tell us about your event.
FAQ
What is the largest conference venue in Seoul?
COEX in Gangnam. Its Grand Ballroom alone seats 1,800 theatre-style, and the complex adds exhibition halls.
Where can I hold a small executive meeting in Seoul?
Traditional hanok venues in Bukchon and Seochon take groups of up to 100. For smaller groups, a private room in a five-star hotel also works.
Is there a conference venue on the Han River?
Yes. Floating Island Convention at Banpo has several halls and terraces on the water, for conferences by day and receptions by night.
