Seoul Conference Venues for 100–200 Guests, Beyond the Hotels

For a conference of 100 to 200 people in Seoul, a five-star ballroom is only one option: dedicated convention floors, small conference houses, cultural venues with their own halls, and design-led event spaces all work at this size. The right choice depends on three things — whether you need breakout rooms, how much catering and AV you want handled in-house, and how much the setting itself should say about your event.

If you're organising a seminar, partner day, association meeting or internal conference for an overseas company and a hotel ballroom feels too formal, or too large, these are the alternatives worth comparing.

How to choose at 100–200 guests

At this size the layout matters more than the headline capacity.

• Ask for capacity in your format. A room that seats 200 theatre-style may hold far fewer at banquet rounds or classroom tables. Give every venue the same layout and compare like with like.
• Catering. Convention venues often run their own catering, while cultural venues may limit food and drink to certain spaces. Ask what's allowed where before you plan coffee breaks and lunch.
• AV. Some venues have built-in screens, LED walls and sound; others expect you to bring a production company. That changes the budget more than the rental fee does.
• Breakouts. If the programme splits into parallel sessions, check that the extra rooms are in the same building and available on your date.

The venues below come from our Seoul venue database. Capacities are the maximum for the main space; the number for your layout may be lower.

Convention floors and conference houses

These are built for meetings, with the room shapes, AV and support that a conference programme needs.

• Plenty Convention — a modern, pillar-free event venue on Banpo-daero in Seocho with customisable LED lighting, for up to 350; suits training seminars and conferences with a launch or networking element.
• SKY31 Convention — a convention floor on the 31st floor of Lotte World Tower in Songpa, with skyline views, for up to 240; suits executive seminars and invitation-only programmes.
• Seoul Central Post Office (Post Tower) — event facilities in a modern landmark in Myeongdong, with a pillar-free main hall for up to 300; suits training seminars and association meetings in the city centre.
• Peace & Park Convention — a practical event facility near the War Memorial of Korea with pillar-free rectangular rooms and natural light, for up to 300; suits training and regional association meetings.
• Conference House Dalgaebi — a purpose-built conference house in historic Jeong-dong with quiet, professional rooms; suits seminars, board sessions and press briefings.
• Studio 159 — a broadcast-equipped event studio inside the COEX complex with curved LED walls, for up to 100; suits hybrid seminars and press conferences that will be streamed.

Cultural venues with their own halls

These give a conference a sense of place, often with a hall built for performance or lectures.

• Seoul Donhwamun Traditional Theater — directly across from Changdeokgung Palace, with an acoustic hall and a sunlit courtyard for receptions, for up to 140; suits cultural or VIP seminars.
• Jeongdong Maru — modernised traditional architecture near Deoksugung Palace with current AV systems, for up to 100; suits smaller seminars and workshops with a heritage setting.
• National Museum of Korea — alongside its 800-seat Grand Auditorium, the museum has smaller lecture halls for around 200; suits academic symposiums and institutional events.

For more heritage options, see our guide to hanok and traditional Korean venues.

Flexible and design-led spaces

These suit a programme that mixes talks, workshops and a reception, or a brand that wants a less corporate feel.

• Community House Masil — a design-forward space in Myeongdong with flexible, open-plan layouts, for up to 120; suits town halls, workshops and interactive sessions.
• Hotel The Designers LYJ Gangnam Premier — a boutique hotel in Gangnam with a designer interior; its Banquet Hall takes up to 250 for a seminar or standing reception, with lounge areas for breakouts.
• L'Escape Hotel — a boutique hotel near Namdaemun with a Jacques Garcia-designed interior; the Banquet Room holds up to 200 standing and the Library space around 150, for a seminar followed by a reception in the same building.
• Rose & Lime — a European-styled boutique venue with a personal event service, for up to 200; suits a seminar-and-dinner format or a small launch.

If the evening matters as much as the sessions, our guide to networking and cocktail reception venues has options to pair with a daytime venue.

Where this size sits among our other guides

• For 10 to 50 people, see small meeting and offsite venues.
• For workshop-style formats, see seminar and workshop venues.
• For around 300 people, see venues for 300-person conferences.

What to send us

To shortlist venues with real availability, send:

• date (or two or three candidate dates) and start and finish times
• headcount and layout for the main session
• number of breakout rooms and their sizes
• catering plan: coffee breaks, lunch, reception
• AV needs, including streaming or interpretation
• district preferences, such as near your office or your delegates' hotel

Frequently asked questions

What kind of venue suits a 150-person conference in Seoul? It depends on the format. Convention floors such as Plenty Convention or SKY31 Convention suit a conventional plenary with AV support; cultural venues such as Seoul Donhwamun Traditional Theater suit a smaller programme that benefits from the setting; flexible spaces suit workshops and town halls.

Are non-hotel venues cheaper than hotel ballrooms? Not always. A lower rental fee can be offset by separate catering, AV and staffing costs. Compare total quotes for the same layout, catering and production, not rental alone.

Can we hold sessions and a reception in the same venue? Often, yes. Venues with a separate hall or lounge — such as L'Escape Hotel or Hotel The Designers LYJ — let you move from sessions to a reception without transferring guests. Check whether the reception space needs to be turned around between uses.

How far ahead should we book a 100–200-person venue in Seoul? It depends on season and venue. Smaller and specialist venues have fewer rooms to offer, so in spring and autumn start as early as your date is fixed.

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Event Korea is the venue sourcing arm of Chris & Partners, a Seoul event agency founded in 2013 that has planned and run 250+ events in 12 countries across five continents. Tell us about your event.