Basca House by RMK Arquitetura

A Corner-Lot Sanctuary of Light, Structure, and Climate Sensitivity

Located in Pelotas, Brazil, Basca House by RMK Arquitetura is a contemporary residence that harmonizes structural precision, natural materials, and environmental awareness. Designed by lead architect Otávio Zanotta Riemke, the 592 m² home stands on a 900 m² corner lot, where circulation and light define the architectural narrative.

Spatial Organization and Site Orientation

The main access to the Basca House is positioned along the side façade, guiding circulation transversely through the residence. This strategic layout allows for a balanced spatial distribution that connects both principal façades — a gesture that strengthens visual continuity and maximizes natural light throughout the interior.

North Façade: Transparency and Climate Responsiveness

Facing the north, the house embraces openness, transparency, and permeability. This orientation captures maximum sunlight and panoramic views, positioning the living areas and bedrooms along this sunlit façade.

To ensure year-round comfort, solar protection elements such as deep eaves and wooden pergolas have been meticulously designed. These features shield interiors from excessive thermal gain in summer, while still allowing winter sunlight to penetrate and warm the home naturally. The north façade also channels prevailing summer breezes, encouraging natural ventilation that reduces the need for mechanical cooling — a key aspect of the home’s passive climate strategy.

South Façade: Solidity, Shelter, and Thermal Performance

In contrast, the south façade is deliberately opaque and compact, composed of stone, exposed concrete, and wooden cladding. These solid materials act as thermal barriers, ensuring insulation against cold southern winds while preserving internal warmth during cooler months. The interplay of mass and texture reinforces the building’s environmental efficiency and tactile architectural identity.

Material Expression and Structural Integrity

A defining characteristic of Basca House is its metal structural system, which enables wide free spans and open-plan living spaces. This structural approach not only enhances spatial fluidity but also allows for seamless integration between interior and exterior environments.

Complementing the steel frame, the use of natural materials — including stone, wood, and exposed concrete — brings a sense of warmth and authenticity to the architecture. These materials create a dialogue between robustness and comfort, ensuring that the house feels both grounded and inviting.

Integration with Landscape

The design maintains a continuous relationship with the garden and courtyard, blurring the boundary between built and natural environments. Large glass openings invite daylight and landscape views deep into the home, emphasizing the connection between architecture, climate, and place.

All Photographs are works of Lucas Daneris