The solution can be scaled by promoting the wider use of locally sourced, low-impact construction materials and by strengthening knowledge and skills across the construction sector and public administrations. The online catalogue offers a replicable and expandable tool to support more sustainable material choices in renovation and construction projects across the Balearic Islands and beyond. Training and capacity building are central to this approach. A series of courses and workshops is helping technicians and other stakeholders rediscover traditional building materials and techniques and adapt them to contemporary construction needs. Following an initial training on the use of marés sandstone in 2024, additional courses throughout 2026 focus on earth, cob and rammed earth construction, lime mortars and traditional flooring techniques, as well as structural timber and other sustainable building solutions.