REBUILD GREEN
2030
2030
APPLY BY 21 SEPTEMBER 2026
Online Hackathon: 3–24 Oct
Demo Day: 31 Oct
Winners announced: 12 Nov, in Warsaw
Online Hackathon: 3–24 Oct
Demo Day: 31 Oct
Winners announced: 12 Nov, in Warsaw
Rebuild Green 2030 connects Ukrainian municipalities with international experts, institutions, technologies and funding partners.
Through the 2026 online Hackathon, multidisciplinary teams develop solutions to real recovery challenges; selected projects continue into a year-long acceleration and next implementation pathway.
Through the 2026 online Hackathon, multidisciplinary teams develop solutions to real recovery challenges; selected projects continue into a year-long acceleration and next implementation pathway.
International program for Ukraine's green Recovery.
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
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 NOW!
WE ARE HERE NOW!
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
Official document Operational Framework for
Operational Framework for
Hackathons
Hackathon Roadmap
2026-2027
From application to implementation — follow the journey of a Rebuild Green project.
Phase 1 — Join
Until 21 Sep 2026 01
Registration
Submit your application and choose the challenge you want to contribute to.
REGISTER NOW →
02
Selection & Team Formation
Selected participants are matched by expertise and formed into interdisciplinary teams around real municipal challenges.
EXPLORE THE CHALLENGES → Phase 2 — Hackathon
3 Oct 2026 03
Kick-Off
Meet your municipality, understand the challenge and align your team around the working framework.
HACKATHON RULES →
3–24 Oct 2026 04
Co-Creation & Mentoring
Develop an implementation-oriented solution with support from municipalities, mentors and experts.
MEET THE EXPERTS →
24 Oct 2026 05
Final Submission
Consolidate the concept, implementation logic, key assumptions and presentation for final evaluation.
EVALUATION CRITERIA →
31 Oct 2026 06
Demo Day
Finalists present their solutions to municipalities, experts, partners and the international jury.
DEMO DAY SCHEDULE → Phase 3 — Accelerate
Nov 2026 07
Winners Announced
Three winning projects are selected to continue into the Rebuild Green acceleration pathway.
→
2026–2027 08
Acceleration & Implementation
Winning projects build consortia, refine feasibility and funding pathways, and move toward real pilot implementation.
EXPLORE THE FRAMEWORK →
KEY PROJECT FIGURES
NUMBERS 2024–2025 CYCLE
60+
MUNICIPAL NEEDS REVIEWED
Submitted by 20+ municipalities and local development partners
4
HACKATHON CHALLENGES DEFINED
Recurring needs were consolidated into four cross-cutting challenges for the Rebuild Green Hackathon 2024
INTERNATIONAL PARTICIPATION
16
COUNTRIES REPRESENTED
35
EXPERTS INVOLVED
600
PARTICIPANTS ENGAGED
BEYOND THE HACKATHON
4
Four solutions continued beyond the inaugural Hackathon through implementation, expansion, consortium building or further project development.
01
BUDMO
Pilot implemented in 2025
02
U-TEAM
Solution implemented and expanding to additional buildings
03
TOLOKA
Integrated into an international funding consortium
04
ABCU
Progressing through active project development
ORGANISERS
SYNCHRO SPACE is an urban innovation hub that helps cities turn complex challenges into implementable projects through urban hackathons - participatory processes, cross-sector partnerships and multidisciplinary collaboration.
Since 2018, it has worked with Ukrainian municipalities, ministries, international organisations—including UNDP and IOM—and industry partners on urban development, recovery and reconstruction initiatives.
Since 2018, it has worked with Ukrainian municipalities, ministries, international organisations—including UNDP and IOM—and industry partners on urban development, recovery and reconstruction initiatives.
Who we are?
FIABCI-Ukraine is the Ukrainian national chapter of FIABCI, the International Real Estate Federation.
Through FIABCI’s global network—spanning five continents, around 90 countries, and more than 40 real estate professions—it mobilises international expertise, partnerships and market connections to support Ukraine’s sustainable recovery and reconstruction.
Through FIABCI’s global network—spanning five continents, around 90 countries, and more than 40 real estate professions—it mobilises international expertise, partnerships and market connections to support Ukraine’s sustainable recovery and reconstruction.
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 12th November 2026 at Rebuild Ukraine in Warsaw.
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 12th November 2026 at Rebuild Ukraine in Warsaw.
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.