Little Big Loo 2025 Architecture Competition

The Little Big Loo 2025 Architecture Competition, organized by Volume Zero, is a global design challenge inviting participants to rethink public toilets as multifunctional, community-centric spaces. The competition aims to transform the perception of public sanitation facilities by integrating them into the social and urban fabric of communities.

 Key Dates

• Early Bird Registration: June 18 – August 22, 2025

• Standard Registration: August 23 – October 3, 2025

• Submission Deadline: October 30, 2025

• Winner Announcement: December 23, 2025

Prizes

• 1st Prize: USD 2,000

• 2nd Prize: USD 1,200

• 3rd Prize: USD 800

• Student Award: USD 500

• Honourable Mentions: Certificates and publication

All winners and honourable mentions will be featured on the Volume Zero website and in several international architecture and design magazines.

Challenge Brief

Participants are tasked with designing a public toilet that serves as more than just a sanitary facility. The structure should also function as a recreational, educational, or social space, adding value to the community it serves. Key considerations include:

• Size: Maximum 150 sq. meters

• Accessibility: Design must accommodate all age groups

• Functionality: Must serve as a public toilet and additional community space

• Context: Appropriate for either urban or rural settings, with an emphasis on underserved areas

• Design: Innovative, hygienic, and contextually relevant