925 Building

Seoul, South Korea

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Other Projects by JHW IROJE architects&planners

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925 Building

Seoul, South Korea

Firm

JHW IROJE architects&planners

Type

Commercial › Office

STATUS

Built

YEAR

2015

925 Building

The building is located in the backstreet of the cheongdam intersection, where luxury brand shops, and opulent apartments and houses boast their unique form. It is surrounded by the Hyundai and Gusan Apartment complex and other commercial facilities that are more than ten stories high.

Abiding by the condition that the mass had to decrease as it reached its higher levels, the structure was planned by placing four of the long span PT beams in the same location on all floors. The remaining structure is organised with a cantilever structure, which led to the expansion of the interior space without any independent columns.

The site has a precondition by which the Hyundai and Gusan Apartment complex had to be adjacent due to the difference in level of 3.5m from the 6m front road to the back. The main issue was securing privacy between the office and residential space. Due to the setback regulations, the mass had to have an inclined plane or a volume that does not bend more than two levels. In order to have an efficient ground floor, an exterior terrace was created for five of the floors, excluding the ground floor, and covers the entire volume with a skin (transparent material) to create a double level form exterior volume. The open ratio for the double skin was increased for the exposed part to meet the setback regulation, and was able to achieve some freedom in composing the form within the regulation. The terraces connected to the interior space were placed to view the varied scenery of the Yeoungdongdaegyo Bridge, the Jamsil Olympic Stadium, and the Hangang River, according to the character of each floor.

Architect: JHW IROJE archit ects (Jung Hyowon)
Design team: Lee Jungmin, Kweon Daegil, Woo Taesik. Jin Younghan
Location: 30, Dosan-daero 101-gil, Gangnam-gu, Seoul, Korea
Programme: neighbor-hood facility Site area: 362.5m2
Building area: 180.54m2
Gross floor area: 1,592.54m2
Building scope: B4, 7F
Parking: 18 Height: 24.92m
Building to land ratio: 49.8%
Floor area ratio: 248.85%
Structure: reinforced concrete, steel, post-tensioning system
Exterior finishing: expanded metal, exposed concrete
Interior finishing: exposed concrete, acryl paint on gyrnsumboard
Construction: JEHYO Architecture
Structure engineer: Seoul Structural Engineering & Consulting Co.,Ltd
Mechanical engineer: DE-TECH
Electrical engineer: Woolim electronical engineering & consulting
Lighting engineer: Newlite Architectural Lighting Design & Imports
Design period: Sep. 2013- Mar. 2014
Construction period: Mar. 2014- Nov. 2015
Client: HB FAMILY HOLDINGS

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925 Building

Seoul, South Korea

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925 Building

Seoul, South Korea

Other Projects by JHW IROJE architects&planners

Cheomdan Badminton Court

Forest and House

925 Building

Seoul, South Korea

Product Spec Sheet

Collaborating Firms

Team