Competition is open to all. No professional qualification is required. Design proposal can be developed individually or by team.

Registration is free.

Register online at Click here

The Required Functional Areas consist of:
  1. 2 (5 Sq.m.) Information Service Kiosks;
  2. 3 Bus Stop Areas with Strict Queuing Lanes and Pick-up and Drop-off Areas for 3 Groups of Bus Lines at each of the Bus Stop
(see details in Appendix);
  1. 1 (15 Sq.m.) Bus Staff’s Office;
  2. 1 (5 Sq.m.) Storage for Bus Staff’s Office;
  3. Covered Public Waiting Area with seats and priority seats properly designated at the appropriate amount;
  4. 6 (12 Sq.m.) Kiosks (2 for Drinks / 2 for Foods and Snacks / 1 for Fruits / 1 for Hats, Umbrellas, Cloth Bags, Newspapers, and Maps);
  5. 1 Kiosk for 8 Snack and Beverage Vending Machines;
  6. 4 Drinking Fountains;
  7. Public Toilets (1 set for Disabled People, 8 sets for Women, 6 sets for Men, 1 set for Diaper Changing Room) - using TOTO Products only;
  8. 2 sets of Disposal Bins (Each set consists of: 1 bin for Food Waste, 1 bin for Paper Waste, 1 bin for Plastic Waste, 1 bin for PET Bottle, 1 bin for Metal and Glass, and 1 bin for Hazardous Waste);
  9. 1 (7 Sq.m.) Police Office;
  10. Areas for Necessary Signages:
    • 2 Ratchawithi Island Area Digital Maps,
    • 2 Bus Line Information Digital Boards (Bus Lines with details of Bus Route and Bus Stop Location Map),
    • 2 Bus Arrival and Departure Time Digital Boards,
    • 3 Bus Stop Signs,
    • Etc;
  11. Pocket Park, if possible.
Notes:      All existing trees can be relocated or replaced. Islands in front of the Ratchawithi Island can be rearranged if see appropriate. Public Facilities and Passages should be designed for the use of everyone. Data of TOTO Products can be find at Participant can propose any other facility or element as see appropriate.

The Competition Site is the Ratchawithi Island at the Victory Monument Area.

Note:   Autocad File is provided.

Link file: Click here

This Competition shall be conducted in two stages as follows:

Stage One

Submission for shortlist.

Stage One Submission Materials

    Digital Materials

  1. Jpg files and Pdf files of Two A1 (594 x 840 mm) landscape format layout images consist of:
    • Project description consists of:
      • Project design concept and description-maximum 500 words,
      • Materials,
      • Project building area and outdoor uncovered area
      • List of TOTO Products Used in the Project.
    • Colored architectural drawings of site plan with relevant context, floor plan with area title and section key, exterior elevations, section at any significant space and any section that displays elevation, public toilet plan with a list of TOTO Products used, - all at appropriate scale, 3D Images, etc. These requirements are minimum. Each image must be minimum 300 dpi.
  2. Individual image jpg files of all data in a. Each image must be minimum 300 dpi.
  3. MS Word file and Pdf file of Project description as in a.
  4. Printed Materials

  5. Printed Materials of Digital Materials a. mounted on 5 mm. thick white foam board without a frame.

Note: Maximum total file size of the 2 boards is 20 MB.
File Name: person name or group name.

Stage Two

Final judging by Mr. Shigeru Ban using Stage One Submission Materials.

Requirements for All Submission Materials

All submission materials shall be in English.
This is anonymous awards selection. Anonymity should appear in all submission material a., b., c., and d.
The participant making the submission must have legal rights and copyrights of all the submission materials.
All responsibility for infringement of the copyrights or intellectual property rights will be borne by the participant; in the case of such infringement by the awarded project, the award shall be revoked.
The copyright of the design project belongs to the participant.

Note:   Any submission material which does not comply with any of these requirements shall be disqualified.

All Digital Submission Materials must be submitted to:

All Printed Submission Materials must be submitted to:
The Association of Siamese Architects under Royal Patronage
248/1 Soi Rama IX 17 (Soonvijai 4), Rama IX Road, Bangkapi,
Huay Kwang, Bangkok 10310, Thailand
Tel: 0-2319-6555 Fax: 0-2319-6419

The Association of Siamese Architects under Royal Patronage will not take any responsibility for any loss or damage of any submission material.

For more infomation:
Tel: 02-319-6555 ext. 207

In making the submission, the participant shall acknowledge that TOTO (Thailand) Co., Ltd. and the Association of Siamese Architects under Royal Patronage shall reserve the rights to retain, exhibit, publish, or reproduce the submission materials without paying any compensation to any person.

All submitted project participants will be informed in writing to collect the submission materials by The Association of Siamese Architects under Royal Patronage within a specified time period, after which they will be disposed of.

Jury Panel Members for Stage One

Associate Professor Dr. Wiroat Srisurapanon

B.Eng. King Mongkut’s Institute of Technology Thonburi,
M.Eng. (Transportation Engineering) A.I.T.,
Ph.D. in Human-Social Information Sciences Tohoku U.
Civil Engineering Department, Faculty of Engineering,
King Mongkut’s U. of Technology Thonburi

Saowalak Narumitpuncharoen

B.LA. Chulalongkorn U.,
M.LA. U. of Oregon.
Visiting Faculty, Department of Landscape Architecture,
Faculty of Architecture,
Chulalongkorn U.

Associate Professor Dr. Tonkao Panin

B.Arch. Silpakorn U.,
M. Arch U. of Houston,
M.Sc. in Arch., Doctor of Philosophy (Architecture)
U. of Pennsylvania
Faculty of Architecture, Silpakorn U.

Associate Professor Dr. M.L. Piyalada Thaveeprungsriporn

B.Arch. Chulalongkorn U.,
M.Arch. and Ph.D. in Arch. (History and Theory)
U. of Michigan
Head of Department of Architecture,
Faculty of Architecture, Chulalongkorn U.

Metee Rasameevijitpisal

B.Arch., Cert. in Real Estate, M.B.A. Chulalongkorn U.,
M.Arch. U. of Michigan,
Principal Architect,
Composition A, Bangkok

Jury Panel Member for Stage Two

Shigeru Ban

Tokyo U. of the Arts, Southern California Institute of Architecture,
Cooper Union’s School of Architecture
Principal Architect and Managing Director,
Shigeru Ban Architects, Tokyo
Recipient of the Pritzker Architecture Prize, 2014

Jury Panel Decision

The Jury panel decision is final.

  • 1st Prize: 100,000 THB, Trophy, and Certificate.
  • 2nd Prize: 50,000 THB, Trophy, and Certificate.
  • 3rd Prize: 30,000 THB, Trophy, and Certificate.
  • 2 Honorable Mention Prizes: 10,000 THB and Certificate each.
  • 5 other participants will each get a Certificate.

Each of the awarded participants shall receive an award from Mr. Shigeru Ban at KBANK SIAM PIC-GANESHA THEATRE, 7TH FLOOR, SIAM SQUARE ONE.

The awarded designs will be exhibited at KBANK SIAM PIC-GANESHA THEATRE, 7TH FLOOR, SIAM SQUARE ONE on the date of Mr. Shigeru Ban’s Lecture.

Event Date
Launch of the TOTO Idea Competition 2019 30-Aug-19
Stage One Material Submission Deadline 24-Oct-19
Stage One Judging Period 28-Oct-19
Notification of Shortlisted Finalists 29-Oct-19
Final Stage Judging Period 4-Nov-19
Notification of Awarded Projects 4-Nov-19
Awards Ceremony 4-Nov-19
Exhibition 4-Nov-19