OUR MISSION
Rebuild Green is an international program accelerating green, sustainable reconstruction in Ukraine through circular construction, bio-based materials, and EU-aligned solutions.
International urban development program
- Implement and scale pilot projects using circular methods, bio-based materials, and energy-efficient solutions
- Build an ecosystem and PPPs to drive resilient urban innovation
- Align all projects with EU standards, enabling replication across sectors
Hackathon Roadmap
2026-2027
From application to implementation — follow the journey of a Rebuild Green project.
01
Registration
Submit your application and join the 2026 Rebuild Green Hackathon participant pool.
REGISTER NOW →
02
Selection & Team Formation
Selected participants are matched by expertise and connected into interdisciplinary teams around real challenges.
EXPLORE THE CHALLENGES →
03 OCT 2026 03
Hackathon Kick-Off
The online marathon begins with challenge briefings, team alignment and a shared working framework.
VIEW THE SCHEDULE →
04
Co-Creation Sprint
Teams turn real municipal needs into sustainable, feasible and implementation-oriented project concepts.
→
05
Mentoring & Reviews
Mentors, experts and municipalities guide teams through feedback, reviews and targeted problem-solving.
MEET THE EXPERTS →
06
Final Submission
Teams consolidate their concept, implementation logic and presentation materials for the final evaluation.
HACKATHON RULES →
31 OCT 2026 07
Demo Day
Finalists present their solutions to municipalities, experts, partners, donors and the international jury.
→
NOV 2026 08
Winners Announced
Three winning projects are selected to continue into the Rebuild Green acceleration pathway.
→
2026-2027 09
Acceleration & Consortium Building
Winning teams refine feasibility, partnerships, funding logic and consortium structures throughout 2027.
EXPLORE THE FRAMEWORK →
10
Implementation Pathway
Selected concepts move toward funding, partnerships and real pilot implementation with municipalities.
PROJECTS IN ACTION →
Rebuild Green 2030 – Program Timeline
2023
Program Launch — Rebuild Green was officially launched in October 2023
2024
1st Rebuild Green Urban Hackathon — September–October 2024
2025
Acceleration & Implementation — Supporting hackathon projects, launching pilot initiatives. Preparation for the second program cycle
2026
2nd Rebuild Green Urban Hackathon
WE ARE HERE
WE ARE HERE
2027
Acceleration, Implementation & Scaling — Advancing solutions developed during the second hackathon
2028
3rd Rebuild Green Urban Hackathon
2029
Acceleration, Implementation & Scaling — Empowering the final cohort of impact projects
2030
Final Demo Day & Rebuild Green Tour — Showcasing results, connecting ecosystems. Announcement of the next-level program launch
NUMBERS 2024-2025 CYCLE
Cities, hromadas, and local development agencies have submitted applications for the Rebuild Green Hackathon
Key project figures
Municipalities
20+
Municipal cases
60+
were analyzed by experts from the Rebuild Green program.
in three categories were identified through municipal requests
Shortlisted cases
9
Generic cases
4
we were chosen to participate in the inaugural Rebuild Green hackathon
16
35
600
Countries involved:
Urban experts:
Participants:
Post-hackathon impact:
4
projects advanced to implementation, scaling, and PPP development after the first Rebuild Green Hackathon
• Budmo — pilot project implemented in 2025
• U-team — project implemented and expanding with new buildings
• Toloka — integrated into an international funding consortium
• ABCU — project under active development
• U-team — project implemented and expanding with new buildings
• Toloka — integrated into an international funding consortium
• ABCU — project under active development
Official document Operational Framework for
Operational Framework for
Hackathons
ORGANISERS
SYNCHRO SPACE is an urban innovation agency developing resilient cities through participatory approaches, public-private partnerships, and multidisciplinary collaboration.
Since 2018, we have cooperated with municipalities, ministries, international organizations (incl. UNDP, IOM UN), and industry partners to implement urban development and reconstruction initiatives in Ukraine.
Since 2018, we have cooperated with municipalities, ministries, international organizations (incl. UNDP, IOM UN), and industry partners to implement urban development and reconstruction initiatives in Ukraine.
Who we are?
FIABCI UKRAINE is the Ukrainian representative office of FIABCI International.
FIABCI International is a global platform that brings together global real estate professionals from more than 42 countries. The mission of FIABCI is to provide opportunities for gaining new knowledge, building cooperation, and entering new markets.
FIABCI International is a global platform that brings together global real estate professionals from more than 42 countries. The mission of FIABCI is to provide opportunities for gaining new knowledge, building cooperation, and entering new markets.
PARTNERS
We offer more than partnership or sponsorship. It's an opportunity to contribute to the rebuilding of Ukrainian cities. Join us in creating a lasting impact on the urban landscape and positioning your brand as a trailblazer in innovation.
Those who create the cities of the future are with us!
Have a question?
Email us!
Email us!
FAQ
Frequently asked questions
The Second Rebuild Green Urban Hackathon 2026 will take place online from 3 to 24 October 2026.
The Demo Day will be held on 31 October 2026, where finalist teams will present their solutions to municipalities, experts, partners, donors and the professional community.
The three winning projects will be announced on 10 November 2026 at Rebuild Ukraine 2026.
The Demo Day will be held on 31 October 2026, where finalist teams will present their solutions to municipalities, experts, partners, donors and the professional community.
The three winning projects will be announced on 10 November 2026 at Rebuild Ukraine 2026.
The Hackathon is open to participants from Ukraine and other countries who want to contribute to green, sustainable and resilient reconstruction of Ukrainian municipalities.
We welcome architects, urban planners, designers, engineers, construction specialists, landscape experts, students, young professionals, startups, researchers, NGOs, community representatives, inclusion specialists, technology providers, manufacturers of bio-based materials and eco-technologies, as well as interdisciplinary teams.
Participants should be ready to work on real municipal challenges and develop solutions that combine environmental performance, feasibility, inclusion, quality of place and implementation potential.
We welcome architects, urban planners, designers, engineers, construction specialists, landscape experts, students, young professionals, startups, researchers, NGOs, community representatives, inclusion specialists, technology providers, manufacturers of bio-based materials and eco-technologies, as well as interdisciplinary teams.
Participants should be ready to work on real municipal challenges and develop solutions that combine environmental performance, feasibility, inclusion, quality of place and implementation potential.
To participate, you need to register through the official call for participants on the REBUILD GREEN website.
After registration, selected participants will receive information about the municipal challenges, the Hackathon format, team formation, mentoring sessions and final presentation requirements.
During the Hackathon, teams will work on selected challenges from Ukrainian municipalities with support from mentors and experts in urban planning, architecture, engineering, bio-based construction, circular economy, social innovation, financing and implementation.
After registration, selected participants will receive information about the municipal challenges, the Hackathon format, team formation, mentoring sessions and final presentation requirements.
During the Hackathon, teams will work on selected challenges from Ukrainian municipalities with support from mentors and experts in urban planning, architecture, engineering, bio-based construction, circular economy, social innovation, financing and implementation.
The main Hackathon format in 2026 is online.
This allows participants, mentors and experts from different cities and countries to join the process and work together on Ukrainian municipal reconstruction challenges.
Offline meetings, partner sessions or presentations may be organised separately if resources and partner commitments allow, but participation in the Hackathon itself does not require physical presence.
This allows participants, mentors and experts from different cities and countries to join the process and work together on Ukrainian municipal reconstruction challenges.
Offline meetings, partner sessions or presentations may be organised separately if resources and partner commitments allow, but participation in the Hackathon itself does not require physical presence.
No, you do not need to have your own team before applying.
You can register individually, and the organisers will support the process of team formation. Interdisciplinary teams are especially encouraged, because the municipal challenges require different perspectives: spatial, technical, environmental, social, financial and implementation-oriented.
If you already have a team, you may apply together.
You can register individually, and the organisers will support the process of team formation. Interdisciplinary teams are especially encouraged, because the municipal challenges require different perspectives: spatial, technical, environmental, social, financial and implementation-oriented.
If you already have a team, you may apply together.
Yes. Team formation is part of the Hackathon process.
Participants will have the opportunity to connect with others, join existing teams or create new interdisciplinary teams around selected municipal challenges.
The best teams usually combine several types of expertise: design, engineering, ecology, construction technologies, community engagement, finance, communication and project implementation.
Participants will have the opportunity to connect with others, join existing teams or create new interdisciplinary teams around selected municipal challenges.
The best teams usually combine several types of expertise: design, engineering, ecology, construction technologies, community engagement, finance, communication and project implementation.
Teams will work on real green reconstruction challenges submitted or validated by Ukrainian municipalities, hromadas or local development agencies.
The challenges may relate to housing, public services, education, rehabilitation, culture, community resilience, circular construction, bio-based materials, energy efficiency, climate resilience, public spaces and other recovery needs.
The challenges may relate to housing, public services, education, rehabilitation, culture, community resilience, circular construction, bio-based materials, energy efficiency, climate resilience, public spaces and other recovery needs.
We are looking for solutions that are sustainable, inclusive, feasible, replicable and relevant to real municipal needs.
Solutions may include spatial concepts, architectural and urban ideas, bio-based construction approaches, circular economy models, eco-technologies, social innovation, community engagement tools, financing logic or implementation roadmaps.
The programme gives special attention to biomaterials, prefabricated bio-based systems, circular construction, energy efficiency and regenerative built environment solutions, while remaining open to complementary eco-technologies.
Solutions may include spatial concepts, architectural and urban ideas, bio-based construction approaches, circular economy models, eco-technologies, social innovation, community engagement tools, financing logic or implementation roadmaps.
The programme gives special attention to biomaterials, prefabricated bio-based systems, circular construction, energy efficiency and regenerative built environment solutions, while remaining open to complementary eco-technologies.
After the Hackathon, three winning projects will be selected for further acceleration.
The acceleration phase will last approximately one year, from November 2026 to November 2027. During this phase, selected projects may receive support with concept refinement, technical feasibility, partner mapping, budget logic, impact framing, consortium-building and preparation for donor, grant, public or blended financing.
The goal is to help winning projects move from ideas to implementation-ready or grant-ready project packages.
The acceleration phase will last approximately one year, from November 2026 to November 2027. During this phase, selected projects may receive support with concept refinement, technical feasibility, partner mapping, budget logic, impact framing, consortium-building and preparation for donor, grant, public or blended financing.
The goal is to help winning projects move from ideas to implementation-ready or grant-ready project packages.
No. REBUILD GREEN 2030 is not a grant scheme in itself.
It is an enabling platform that connects municipal needs, experts, technologies, teams, partners and potential financing pathways.
The programme helps selected projects become stronger, more structured and more ready for external funding, donor support, public-private partnerships, investment or consortium-based implementation.
It is an enabling platform that connects municipal needs, experts, technologies, teams, partners and potential financing pathways.
The programme helps selected projects become stronger, more structured and more ready for external funding, donor support, public-private partnerships, investment or consortium-based implementation.
Hackathon outputs will be evaluated according to transparent criteria, including:
municipal relevance, environmental performance, feasibility, replicability, inclusion and accessibility, quality of place, partnership and funding potential, and team capacity.
The winning projects should respond to real municipal needs and demonstrate potential to continue beyond the Hackathon into acceleration, funding preparation and implementation partnerships.
municipal relevance, environmental performance, feasibility, replicability, inclusion and accessibility, quality of place, partnership and funding potential, and team capacity.
The winning projects should respond to real municipal needs and demonstrate potential to continue beyond the Hackathon into acceleration, funding preparation and implementation partnerships.
Yes. Municipalities, hromadas, local development agencies and public-sector institutions are key participants in the programme.
They can submit or validate local reconstruction needs, provide data and context, support challenge framing, participate in mentoring and evaluation, and become local owners or beneficiaries of selected solutions.
Municipal ownership is one of the core principles of REBUILD GREEN 2030.
They can submit or validate local reconstruction needs, provide data and context, support challenge framing, participate in mentoring and evaluation, and become local owners or beneficiaries of selected solutions.
Municipal ownership is one of the core principles of REBUILD GREEN 2030.
Yes. REBUILD GREEN 2030 is an open partnership platform.
Partners may join the whole programme, a specific cycle, the Hackathon, an acceleration workstream, a municipal project, an event or a visibility platform.
Donors can support the public-interest mission of green reconstruction, technical assistance, project preparation and acceleration. Sponsors can support programme activities, events, visibility and specific workstreams while positioning themselves as contributors to green reconstruction and urban innovation.
Partners may join the whole programme, a specific cycle, the Hackathon, an acceleration workstream, a municipal project, an event or a visibility platform.
Donors can support the public-interest mission of green reconstruction, technical assistance, project preparation and acceleration. Sponsors can support programme activities, events, visibility and specific workstreams while positioning themselves as contributors to green reconstruction and urban innovation.
This Hackathon is not only about generating ideas.
It is part of a long-term programme that connects municipal challenges with expert knowledge, bio-based and circular construction solutions, acceleration, consortium-building and financing pathways.
The strongest projects are expected to continue after the Hackathon and develop into real pilot, demonstrator or scalable reconstruction projects for Ukrainian municipalities.
It is part of a long-term programme that connects municipal challenges with expert knowledge, bio-based and circular construction solutions, acceleration, consortium-building and financing pathways.
The strongest projects are expected to continue after the Hackathon and develop into real pilot, demonstrator or scalable reconstruction projects for Ukrainian municipalities.