Organizer: Buildner

Location: Global online submission

Deadline: 10 September 2026 (registration deadline), 12 October 2026 (submission deadline, 23:59 London time)

Competition Category:
- Adaptive reuse design: Choose any existing structure anywhere in the world (whether currently in use, abandoned or neglected), and give it a new purpose and relevance within spaces under 250 square meters

Eligibility:
- Open to all participants, no professional qualification required
- Design proposals can be developed individually or by teams (maximum 4 team members)
- Correspondence with organizers must be conducted in English, and all information submitted by participants must be in English

Entry Fee:
- Architect/Enthusiast/Company:
- Early Bird Registration (Feb 25 - Apr 22): €85
- Advanced Registration (Apr 23 - Jul 2): €105
- Last Minute Registration (Jul 3 - Sep 10): €135
- Student:
- Early Bird Registration (Feb 25 - Apr 22): €75
- Advanced Registration (Apr 23 - Jul 2): €85
- Last Minute Registration (Jul 3 - Sep 10): €105

Prizes/Awards:
- Total prize fund: €10,000
- 1st Prize: €5,000
- 2nd Prize: €2,500
- 3rd Prize: €1,000
- Buildner Student Award: €1,000
- Buildner Sustainability Award: €500
- 6 Honorable mentions & certificates
- Winners will be showcased on ArchDaily, greatly boosting their visibility to millions of architecture professionals and enthusiasts worldwide
- Buildner will conduct extensive publicity through its website (attracting over 1 million unique visitors annually), social networks (over 800,000 followers combined), and newsletter campaigns (reaching over 200,000 subscribers)
- Winners will have the opportunity to submit a movie and an interview, boosting their recognizability

Core Introduction: RE:FORM - New Life for Old Spaces Edition #3 is an international architecture competition organized by Buildner. Participants are invited to choose any existing structure anywhere in the world (whether currently in use, abandoned or neglected) and give it a new purpose and relevance within spaces under 250 square meters. In a world facing urgent environmental and spatial challenges, the most sustainable solutions may come not from new construction, but from reimagining what already exists. From unused storefronts and aging sheds to underutilized garages or portions of larger buildings, each project should demonstrate the potential to transform a limited footprint into something innovative and impactful. This competition celebrates the ingenuity needed to balance sustainability, functionality, and design within an existing space. How can we rethink these structures to serve new purposes, meet contemporary needs, and positively impact their communities? RE:FORM Edition #3 is a call to bring fresh perspectives to old spaces, proving that thoughtful adaptation can be a powerful tool for a more sustainable future. This competition is part of a strategic partnership between Buildner and ArchDaily that aims to explore "The Contemporary Home".