Handmade urbanism is a participatory and spontaneous approach to urban planning, based on creative, low-cost interventions carried out directly by citizens. It contrasts with traditional institutional processes, favoring practical solutions to transform urban spaces according to real community needs. This model promotes the use of local resources, self-management, and the creation of accessible and sustainable infrastructure. 

The design of urban interiors connects with the do-it-together urbanism approach by transforming shared spaces such as courtyards and public atriums into participatory hubs. These interventions blend aesthetics and functionality, strengthening the sense of belonging and improving urban life quality. 

Brazilian architect Marcos Rosa has extensively explored handmade urbanism in books like Handmade Urbanism and Microplanning, analyzing participatory projects and their scalable sustainability potential.