Choose a site—used, abandoned, or forgotten—anywhere in the world, and give it a new purpose.
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. Re:Form Edition #3 invites architects, designers, and innovators to embrace the challenge of adaptive reuse, working within spaces under 250 square meters to give them renewed purpose and relevance.
Participants are free to select any existing structure—whether currently in use, abandoned, or neglected—anywhere in the world. From unused storefronts and aging sheds to underutilized garages or portions of larger buildings, each proposal should demonstrate how a limited footprint can be transformed into something innovative and impactful.
This competition celebrates the ingenuity required to balance sustainability, functionality, and thoughtful 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 an invitation to bring fresh perspectives to old spaces and show that careful adaptation can play a powerful role in shaping a more sustainable future.
PRIZES
3 winning proposals, 2 special award recipients and 6 honourable mentions will be selected. Buildner will award a total of 10,000 € in prize money to competition winners as follows:
1st Prize - 5,000 €
2nd Prize - 2,500 €
3rd Prize - 1,000 €
6 honourable mentions
Buildner Student Award - 1,000 €
Buildner Sustainability Award - 500 €
COMPETITION SCHEDULE
Early Bird Registration: February 25 – April 22
Advance Registration: April 23 – July 2
Last Minute Registration: July 3 – September 10
Final registration deadline: September 10 , 2026
Closing date for submission: October 12, 2026 (LONDON TIME)
Announcement of the winners: November 17, 2026
More: https://architecturecompetitions.com/reform3
