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CTS Call of the Sea

NISHISANDO – Tokyo, 2023 © Sou Fujimoto

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Intro

CALL OF THE SEA – ARCHITECTURE COMPETITION

Call of the Sea invites participants to design a small-scale overwater accommodation within the village of Torosiaje, a unique Bajau settlement located off the coast of North Sulawesi, Indonesia. The aim is to create a space capable of hosting up to 6-8 guests, offering an immersive experience deeply connected to the life, culture and rhythms of the sea.

The project should propose a new form of hospitality – simple, respectful and integrated within the existing context – where visitors can engage with everyday activities. Particular attention should be given to the relationship with water, the use of local materials and the adoption of sustainable strategies adapted to the coastal environment.

Rather than designing a conventional accommodation, participants are encouraged to explore how architecture can become a bridge between visitors and community, enhancing both the local economy and cultural identity. The proposal may take different forms, from a single structure to modular or dispersed systems, allowing flexibility in spatial organisation and guest experience.

The challenge lies in interpreting the spirit of the place, proposing a design that balances environmental sensitivity, architectural quality and a meaningful connection with one of the most unique marine cultures in the world.

🗺️ Location on map

Files

Download Competition Brief (.Pdf): English, Italiano, Español, Français

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14.04.2026 – 10.07.2026
3:00 pm CET

10.07.2026 – 11.09.2026
3:00 pm CET

11.09.2026 – 09.10.2026
3:00 pm CET

Prizes

PRIZE POOL

8.000 $

+ PUBLIC EXHIBITION

FIRST PRIZE

3.000 $

SECOND PRIZE

2.000 $

THIRD PRIZE

1.000 $

5 GOLDEN MENTIONS: COUPON FOR A FREE MEMBERSHIP

10 HONORABLE MENTIONS: COUPON FOR A FREE COMPETITION

30 FINALISTS: PUBLISHED ON TERRAVIVA CHANNELS

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Upload

One A1 Panel 594 x 841 mm (horizontal)
A brief text describing the proposal

09.10.2026
3:00 pm CET

09.11.2026
12:00 pm CET

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* The “Extend” service allows you to extend the submission deadline by an additional 72 hours. The “Verify” service conducts a formal compliance check to ensure your submission meets all required rules.

* If your are unable to complete your project, the “Flex” service allows you to withdraw without losing your registration fee.

Jury

IRINA BUSURINA

SC Planners
[Los Angeles, USA]

Irina Busurina is an urban-cultural strategist and design leader at the intersection of participatory design, public art, and social infrastructure. At 16, she designed façade tilework for the Theatre of Nations in Moscow. After her Master’s in Architecture from the University of…

GAETANO GIORDANO

Nudus
[Rotterdam, Netherlands]

Architect and project leader born in Palermo, Italy. He studied at the University of Palermo, with international academic experiences at ENSA Versailles and ENSA Paris-Malaquais. Early professional work in France and Spain contributed to the development of his design and…

MICHELA QUADRELLI

Christoph Hesse Architects
[Berlin/Korbach, Germany]

Michela Quadrelli is an Italian architect based in Berlin, with over six years of experience at Christoph Hesse Architects, where she is Partner and Head of Design. She studied architecture at the Università degli Studi di Genova, graduating with honours in 2019 with a thesis…

RAMY ABI ANTOUN

RAMAC
[Byblos, Lebanon]

Ramy Abi Antoun is the founder and principal architect of RAMAC Architecture & Design Studio. His work spans architecture, interior, urban, and landscape design, with projects developed internationally and recognized through multiple awards in international competitions…

KÜBRA MERCAN HARPUTLUOĞLU

Qh. Studio
[Istanbul, Turkey]

Kübra Mercan Harputluoğlu is a Dutch-born architect and photographer, based between Netherlands and Istanbul. She holds a Bachelor’s degree in Architecture and Construction Engineering and a Master’s degree from Eindhoven University of Technology in…

XIANMING SANG

Perkins & Will
[Boston, USA]

Mr. Xianming Sang is an accomplished architect with a solid academic background and an impressive professional career. He holds a Master of Architecture from the Harvard Graduate School of Design. Currently, Mr. Sang is an architect at Perkins&Will, a globally…

NEETU KAPOOR

NIT Hamirpur
[Hamirpur, India]

Dr. Neetu Kapoor is Assistant Professor at the Department of Architecture at NIT Hamirpur, India. She has received her B. Arch with honors in Architecture from National Institute of. Technology (NIT), Hamirpur (HP), India in 2005, M. Arch from Indian Institute of… 

LIUYUN WANG

TBG Partners
[Dallas, USA]

Liuyun Wang is a landscape designer and researcher working at the intersection of climate resilience, agricultural systems, and data-driven design implementation. She currently practices at TBG Partners, contributing to housing and community development projects…

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Such right of authorship may be exercised at any time by the author (art. 20 of Italian Copyright Law). Complete terms and conditions are available on Terms & Conditions.

  1. Register to the competition: only the personal data of the team leader will be necessary. In case you participate as a team, the other members of your group will be indicated during the submission process.
  2. After registering, you will receive a confirmation email with your registration code. If you do not see the email in a few minutes, check your “junk mail/spam” folder.
  3. Work on your project and submit your proposal within the deadline, carefully following the instructions in our Upload Section.
  4. Wait until the announcement of the jury’s verdict and check out the competition results on our website.

The “Order Number” (ex. 12345) will be available after complete your registration. In addition will be sent also at your email address.

The competition is open to students, architects, designers, urbanists, engineers, artists, makers, activists and anyone interested in the architectural design.

The competition prizes comprise both monetary awards and coupons. The coupons’ value is determined by the allocation of “Rookie” subscriptions and “Late Registrations” entries.

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Participants can join the competition either individually or with a team. If you register with a single competition registration (either Early, Standard, or Late), there is no limit to the number of team members. However, If you are participating through a Monthly Membership plan, the registration allows for a team composed of the team leader plus up to 4 additional members for a total of 5 participants maximum.

During the registration we only need the personal data of the group leader. The other team members will be indicated in the final submission package at the end of the competition. You will find all the instructions after registering.

Teams can be composed by members of different nationalities and there are no restrictions about country of residence.

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(*) The prize amounts are shown in US Dollars (USD) for reference and communication purposes.
For fiscal and administrative reasons, all cash prizes will be paid in Euros (EUR) at a fixed nominal exchange rate of 1 EUR = 1.25 USD.