The construction sector is facing a problem of exhaustion of energy and material resources. Regarding the Global Status Report (GABC 2017), the construction industry and the use of the buildings are responsible for 36% of the global energy consumption and 39% of the CO2 emissions. Architecture practices tend towards standardization; however, tailor-made solutions are essential to adapt human settlements to the local disparities in terms of climate, resources and know-how. Social economy and civil society actors are inventing new practices based on the reinterpretation of local vernacular architectures (such as the use of local resources, bioclimatic approaches, and so on) and also in terms of community participation (placemaking, participatory processes, for example).In a logic of “act local, think global”, the cooperation between local agents of the change to local-made solutions is vital to guarantee a scaling up of their good practices. The exchange with and among people with different backgrounds enhances this process. In view of these considerations, BIØN (Building Impact Zero Network) was founded in 2015. It aims to divulge knowledge in the field of low environmental impact building techniques through inclusive architectural practices. From 2015 to 2018, the network realized a first Erasmus+ project called LearnBIØN in which seven organizations from five European countries cooperated to train 140 adults, implementing an innovative hands-on-approach didactic methodology. On the basis of this valuable experience, the network is launching an enhanced edition of the first project called LearnBIØN#2. The new consortium is formed by three NGO’s (Oficinas do Convento [PT], Architectural Environmental Strategies-AES [SW], and Architettura a kilometro zero-Ak0 [Italy]), two cooperatives (Actyva - miga ecoarquitectura [Spain] and Architettura e cooperazione - Arcó [Italy]), one small company (Canyaviva [Spain]) and two research centers belonging to universities (Haute Ecole de Bruxelles-Brabant - HE2B, C.E.R.I.S.ES [Belgium] and Sciences Po Grenoble, Chaire d’Economie Sociale et Solidaire [France]). The intention is to implement five workshops tackling new building techniques and complementary approaches to the techniques previously addressed. The project also intends to use video as a way of encouraging the participation of trainees in the process of sharing knowledge and as a powerful tool for social network dissemination. Eight events (“LocalForum” and “OpenBIØN”) hosted by the partners are fostering an increased impact of the network at a larger scale.BIØN plans to continue its efforts for the inclusion of low-skilled adults by considering them as a main target group for its lifelong training actions. In a context of an European crisis, where unemployment became widespread, in particular in the construction sector, LearnBIØN#2 aims to facilitate the access to validation of non-formal and informal learning, taking advantage of the new European certification of earth-based building techniques (ECVET units). The network intends to align its training activities with these new standards, opening educational pathways. Regarding the capacity of the partners to engage low-skilled adults in their training activities, synergies have to be created with key local agents. For this purpose, the skills of the partners are being reinforced through staff training activities addressing two aspects: the placemaking processes and the knowledge of social ecosystems. The first is led by AES, the second by Sciences Po Grenoble, a new partner in this project, counting with the collaboration of experts on territorial approaches. Both training activities are retro-fed by fieldwork and will result in the creation of different outputs of high transferability potential to other agents of the social economy. Concerned with the importance of a long-duree perspective of construction, the network also intends to develop a follow-up methodology to analyze in retrospective its own practices with a multidisciplinary approach (monitoring of the indoor climate conditions after several years in different seasons, maintenance and use by the community, etc).LearnBIØN#2 expects to directly train around 120 adults, in eight training sessions in different European countries (resulting in five didactic prototypes); to gather 250 participants in eight multiplier events; to produce five new video tutorials packages transmitting practical information about the techniques and how to teach them; six follow-up reports of the past actions of the network; and three outputs on placemaking processes and local ecosystems analysis. All these contents are intended to be shared at BIØN’s web platform, in order to reach a broader public of students, professionals and other people that did not have the opportunity to participate in the training activities of the network, ensuring the visibility of the project beyond its official terminus point (2022).