This chapter describes the intervention model of the Latin American organization TECHO in vulnerable settlements through experiences in different communities: Altos Del Pino (Colombia), Jardim Gramacho (Brazil), and Malvinas (Brazil). In these diverse socio-spatial contexts, the organization implemented what it calls "Mesa de Trabalho" (litterally, "Work Desk"), an open platform for discussion and participatory planning that aims to stimulate capacity building within the communities around housing and habitat projects. The implementation of the "Work Desk" in different contexts is discussed here, to identify its potentials and limitations as a "social technology".