Transition of construction sector toward sustainability requires the development of interdisciplinary and multilevel educational approaches that closely mirror real-world professional environments. This paper presents a service-based learning (SBL) model that simulates the construction ecosystem by integrating vocational education and training (VET) students, Master’s (MSc) students, and doctoral (PhD) candidates into joint projects aimed at driving sustainable change within the sector.

Collaboration among participants was realized through two intensive three-day workshops. The first workshop was held in May 2024 at the M.A.R.E. Center in Rovinj (Center for Active Rehabilitation and Education), where mentorship-driven teaching models was applied on five key topics (management of construction and demolition waste, use of recycled materials, green roofs and facades, nature-based solutions, and building with bio-based materials). During the first workshop, each educational level engaged in a shared theoretical introduction to the topic, guided by their instructors/professors. After that, participants assumed roles aligned with their level of expertise, contributing to the project in complementary ways.

The second workshop took place in April 2025 at the MOKOŠ Development Center in Baranja. During this event, participants connected their previously acquired knowledge on building with bio-based materials with hands-on experience through four practical modules: earth as a construction material and testing methods, earth-based plasters, the production of “čerpić” (sun-dried earth bricks), and “vitlovi” (traditional earth construction elements).

These activities reflected the vernacular building techniques characteristic of the region and provided a valuable opportunity to explore the integration of traditional materials and sustainable construction practices.

The choice of venues for the implementation of the workshops was strategically aligned with the educational and social goals of the project. These centers represent the spaces and models of inclusive, service-based and environmentally responsible education.

Educational design was based on Bloom’s taxonomy, guiding students through learning: VET students focused on practical skills, MSc students developed analytical solutions, and PhD candidates led research and teamwork. SBL experience in field showed that combining service-based learning with cross-level collaboration builds relevant technical and social skills and strengthens critical thinking. This model also helps bridge education and practice, promoting interdisciplinary learning and environmental responsibility.

Keywords: Service-based learning, Sustainable construction, Green transition, Construction education.