Seoul International Complex


Yeongdong-daero underground complex

❚ Major Plans

Mixed-use development of Yeongdong-daero underground complex (floor area ratio 159,000 ㎡), facilitating transfers between railways and buses.

• Mixed-use development: 1st to 4th basement floor extension 630 m × width 70 m × depth 28 m
• Integrated stations: 5th to 6th basement floor extension 165 m × width 70 m × depth 51 m

Facility name Location (basement floor) Area (㎡) Major features
Convenient facilities for citizens 1st floor 29,981 ∙ Convenient facilities for citizens and for-profit facilities
City air terminal 1st to 2nd floor 18,354 ∙ 1st floor check-in ∙ 2nd floor boarding of airport bus
Bus transfer center 2nd floor 6,009 ∙ 90 service routes (current 47+future 43)
Parking lot 3rd floor 27,493 ∙ Parking for 114 buses, 137 cars
Integrated stations 4th to 6th floor 77,412 ∙ 4th floor: Wirye to Sinsa
∙ 5th floor: metropolitan railways
∙ 6th floor: metropolitan railways (KTX, GTX, etc.)


○ Through the linking of four metropolitan railways and city railways (light rail and subway), significantly improve the accessibility to major cities.
• Nationwide: Strengthen the accessibility of KTX (Dongtan, Samseong, and Uijeongbu), Airport Railroad and Subway line no. 9 to Incheon Airport and major cities around the country.
• Metropolitan area: Expand the metropolitan railways network, such as GTX A (KINTEX to Samseong Station), GTX C (Geumjeong to Uijeongbu), southern metropolitan express (Dangare to Jamsil), and others.
• Major centers in Seoul: light rail (connect Wirye to Sinsa. Subway line no. 2 to line no. 9, and others)

○ Establish a metropolitan complex transfer system for organic links of public transportation facilities
• Complete a metropolitan complex transfer system for transferring conveniently and rapidly to various transportation means, such as railways, buses, and airplanes.

○ Maximize the use of urban space by building solid facilities around the railway stations.
• Build an organic and integrated complex by connecting major facilities such as COEX, integrated stations, Hyundai Motors GBC, and Jamsil Sports Complex
• Reorganization of the environment for pedestrians and bikes, in order for railways passengers to use the major facilities easily.

Yeongdong-daero underground complex

Aerial view (transverse section)

Yeongdong-daero underground complex

Aerial view (longitudinal section)


Reference Land Area of Major Sections of International Exchange Complex

Yeongdong-daero underground complex

Division Land area Features
TOTAL 1,992,394.8 ㎡ International Exchange Complex
Inside the District Unit Planning Areas 1,663,652.0 ㎡ -
Private land Special Planning Districts A COEX land 190,386.3 ㎡ International Exchange Complex major functions area
North side 148,784.0 ㎡ MICE major facilities such as exhibitions and conventions
South side 41,602.3 ㎡ MICE supporting facilities such as commercial facilities/hotels
B Hyundai Motors GBC 79,341.8 ㎡ International Exchange Complex major functions area
(exhibitions and conventions and supporting facilities)
C Seoul Medical Center land 31,543.9 ㎡ Expansion of MICE supporting facilities
(businesses/culture/accommodation, and the like)

D Old site for Korea Appraisal Board land 10,988.5 ㎡
Small-scale private land E North side of Bongeunsa-ro general residential area 60,366.2 ㎡ Mixed district of small lands and residential area
→ Expand city services facilities
(Maintain the city structure, encourage street revitalization by utilizing lower levels of buildings, etc.)
F West side of COEX general residential area 117,086.7 ㎡
G North side of Teheran-ro general commercial area 38,610.8 ㎡ Concentration of business facilities
→ Strengthening the functions for attracting and supporting international affairs
H South side of Teheran-ro general commercial/residential area 203,232.5 ㎡
I East side of old KEPCO land general residential area 107,752.7㎡ Large-scale development of community facilities-related businesses
→ Improve the street environment and expand the supporting functions for mid-scale facilities (businesses/commercial/culture, etc.)
Public land J Yeongdong-daero 45,449.1㎡ Complex transfer system
K Rivers (Tancheon Stream) 184,705.0㎡ Build an open waterfront space for citizens
L Jamsil Sports Complex 414,205.0㎡ Space mainly for sports and entertainment
*etc. Roads, Gangnam Fire Station, etc. 179,983.5㎡ -
Outside the District Unit Planning Areas 328,742.8㎡ -
Public land. M Rivers (Hangang River/ Tancheon Stream) 328,742.8㎡ Build an open waterfront space for citizens
(such as expansion of Jamsil Sports Complex)