Casa Guadalupe investigates new ways of designing and building single-family housing through the integration of architectural design, industrialized process and site-specific adaptation, proposing an operational alternative to conventional residential construction. The project is located in a suburban rural environment in Asturias, where agricultural and domestic typologies still structure the territory. The house takes the agricultural shed and the casa mariñana as references, understood as spatial and constructive systems with clear geometry, direct relation to the ground and climatic response. These logics are reinterpreted through contemporary dry construction, avoiding both literal typological reproduction and generic residential models. The project’s innovation lies in its complete prefabrication in the workshop. The light metal structure, compact fibre-cement façade and corrugated metal roof form a single system defined from the architectural project itself. Fabrication in a controlled environment reduces dependence on the building site, improves execution precision and limits improvisation. Assembly on the plot, resolved in two days, demonstrates a significant reduction in time and impact on the surroundings. The house rests on a system of pillars that absorbs the irregularity of the terrain and minimizes earthworks, allowing precise implantation without altering the natural condition of the plot and demonstrating the capacity of industrialized systems to adapt to non-standardized contexts. The organization into two connected but differentiated domains allows variable occupation over time and different modes of use without construction changes. Casa Guadalupe demonstrates that industrialization, when integrated from the outset into design, can improve architectural quality through greater process control, an adjusted relationship with the site, and viable, sustainable architecture.