Interior of Queen Sirikit National Convention Center (QSNCC)


Queen Sirikit National Convention Center (QSNCC) is the first national convention center of Thailand. Constructed in 1991, under the name of Queen Sirikit the Queen Mother of Thailand, the project was to host the 46th Annual Meetings of the Boards of Governors of the World Bank Group and to serve local and international visitors in the prime area of Bangkok, Ratchadaphisek Road, Khlong Toei District.

QSNCC closed its doors for a major expansion in 2019 and reopened in September 2022. During the three years of construction, we worked closely with the engineers, the construction teams, and a number of designers including architects, lighting specialists and landscape designers. The main objectives are to offer a new approach to Thai design reflecting the latest building technologies, to preserve precious art objects by master artists of Thailand, and to showcase specific Thai craftsmanship to the international audience.

To preserve art objects from the former QSNCC, we have relocated the existing gilded wooden doors with their metal handles which is in the form of the mythical creature, naga, as the focal point of the main conventional hall entrance. Another existing art piece, a column of the four headed elephant holding a globe was reconstructed and relocated next to Plenary Hall.

The main inspiration of our interior design of QSNCC is drawn from the collection of Queen Sirikit’s outfits. Queen Sirikit was the pioneer of introducing Thai arts and crafts to an international level. She was interested in preserving the knowledge of Thai craftsmen and at the same time modernizing these traditional weaving techniques. In doing so, she was helping to create work for the local communities. To pay tribute to Queen Sirikit and her influence in keeping tradition current with the modern society, the design of the QSNCC is inspired by her outfits. This is then taken in consideration of the various functions of the QSNCC and can be expressed through the design of each floor level.

Ground floor: Exhibition Halls 1-4

Total area: 22,335 sqm

Ceiling height: 13.5 m

The main entrance to QSNCC is on the ground floor; this level directly connects the visitors to the primary drop-off on Ratchadaphisek Road and the secondary drop-off adjacent to Benjakitti Park. An important feature is the horizontal joints of the travertine stone cladding of the Exhibition Halls spanning 300 meters in length. The joints of each panel are either curved or angled reflecting the basic geometries of Thai patterns as seen in Queen Sirikit’s Chitlada dress which is a modern Thai outfit. At the entry points of the exhibition halls, we added a feature of curved copper laminated panels to break the monotony of the travertine stone. Gold trims are detailed on the ceilings creating a rhythm inspired by the golden thread in her Chitlada dress.

Lower ground floor: Exhibition Halls 5-8
Total area: 22,335 sqm

Ceiling height: 7 m

The lower ground level connects to the entry of the underground train station (MRT) to QSNCC and the parking spaces in Basements 1 and 2. Other facilities on this level include cafes and restaurants. The featured architectural element of this floor is the dominant staircase that links the visitors to the ground level which is at the street level. This staircase was designed so that it could function as a waiting area, a meeting point for visitors and an emergency exit.

We have chosen Queen Sirikit’s casual Thai black and white loincloth patterned coat as the visual inspiration. This is expressed through the floor pattern with a distinctive Thai character. The black and white loincloth is a Thai vernacular style. Queen Sirikit modernised this style in fashion by commissioning European designers such as Pierre Balmain. In the reception area, laminate panels manufactured with the latest bending and cladding technology cover the entire exterior wall space of the exhibition halls. This feature is inspired by the modern pleated fabric of Queen Sirikit’s outfits which at the same time evoke a sense of Thai vernacular style.

First and second floors: 50 conference rooms and 2 multi-purpose halls

Ballroom Hall’s area: 4,598 sqm

Ceiling height: 9.5 m

Plenary Hall’s area: 4,400 sqm

Ceiling height: 9 m

The first and the second floors of QSNCC accommodate 50 conference rooms designed for business meetings, and 2 multi-purpose halls, the Ballroom Hall and Plenary Hall. We have chosen to study one of the basic Thai patterns – prajamyam which is seen on Queen Sirikit’s Chakri dress (formal outfit). This pattern has been redrawn over and over again until the re-designed prajamyam can be applied to different architectural scales for a variety of spatial effects – on the ceilings, walls and partitions. This pattern is also printed on the carpets.

The Ballroom Hall’s interior design is inspired by Queen Sirikit’s outfits of the Hill Tribe pattern which she would wear with her silver jewellery. These are both produced in the north of Thailand. The traditional Hill Tribe designs are composed of geometrical patterns abstracted from nature. After studying the pattern, we reinvented it and applied it on the carpet and the interior walls. We also made these patterns functional to serve as acoustic boards inside the exhibition halls. An ornate feature is the application of silver leaves that flow from the curvature of the ceilings to the walls.

Vertical circulation enclosures

The prajayam pattern appears again on the partitions of the escalator enclosures, this time with the golden leaf combination. This golden leaf motif is seen in Thai Buddhist temples as a symbol of sacredness, integrity and respect. For the elevators, we decided to use silver leaves to ornate the elevator shafts to mark the distinction of the two different vertical transitions.

Project title : Interior of Queen Sirikit National Convention Center (QSNCC)
Location : 60 Queen Sirikit National Convention Center, Ratchadaphisek Road, Khlong Toei Sub-district, Khlong Toei District, Bangkok, Thailand
Area : 130,000 sq.m.
Year of completion : 2022
Photo by : Ketsiree Wongwan and Skyground
Filmed by : Skyground architecture film & photography
Written by : Written by M.L.Chittawadi Chitrabongs and Frances H. Mikuriya

Collaborate Team:
Project Owner /  N.C.C. Management & Development Co., Ltd.
Developer / Frasers Property (Thailand) PCL
Main Contractor / Thai Obayashi Corp., Ltd.
Architect / Design 103 International Ltd.
Structural Engineer / Beca (Thailand) Co., Ltd.
Machanical and Electrical Engineer / EEC Linconlne Scott Co., Ltd.
Interior Designer / Onion Co., Ltd.
Landscape Architect / Shma Co., Ltd.
Lighting Designer / Bo Steiber Lighting Design (Thailand) Co., Ltd.
Signage & Graphic Designer / Beourfriend Co., Ltd.
Green Building Consultant /Africus Co., Ltd.
Project Management / Stonehenge Co., Ltd.
Piling Contractor / Pylon PCL

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