Arthur Casas | The Naturalist Architect

Becoming one with nature is the main vision of Arthur Casas, an exceptional architect who focuses not only on building structures, but immersive and fulfilling experiences in his projects.
His designs tell stories of harmony and nature, connecting living spaces to the source of life, nature. Casas, a naturalist, not only redefines architecture with creative projects like the Angra House and the JD House, as well as distinctive items like the Onda Sideboard, but his main commitment is to create deep connections with nature by tearing down all barriers between nature and our homes.
- Arthur Casas | Source: Pinterest
Designing with Nature at the Core
Arthur Casas, a recognized Brazilian architect, is particularly celebrated for his naturalist approach, which emphasizes on seamlessly integrating built structures with their natural surroundings.
Casas’ philosophy is centered on creating a harmonious fusion between architecture and nature. His approach focuses mainly on integrating the landscape in his projects through large openings, and designs that blur the boundaries between indoor and outdoor spaces; the incorporation of natural materials, as well as the use of natural light to promote energy conservation and resource preservation. These elements not only allow his creations to coexist with their environments but also enhance and celebrate them.
Arthur Casas emerged as an important figure in sustainable and naturalistic architecture, thanks to his innovative designs. Casas’ visionary designs gained significance in the sector because of his focus on integrating sustainability into his projects, using water reduction, solar panels and the natural materials. In addition, his importance in naturalism design increased when he won the competition to design the Brazilian Pavilion for Expo Milan 2015.
- LAB House by Arthur Casas | Source: ArchDaily
- LAB House by Arthur Casas | Source: ArchDaily
Angra House
Angra House is a prime example of architectural poetry, where design and nature coexist in perfect harmony, a particular feature of Casas’ approach.
- Angra House by Arthur Casas | Source: ArchDaily
Angra House, a renovation project completed in 2024 by Arthur Casas in Angra dos Reis located in Brazil, reflects Casas’ view of fusing indoor and outdoor areas. Casas focused primarily on enhancing ocean views and creating a smooth connection with the nearby nature.
Expansive floor-to-ceiling glass windows welcome breathtaking ocean views and natural light, fostering a serene atmosphere and connection with nature. The harmonious integration of natural materials such as stone and wood enhances this connection, reflecting the surrounding landscape while maintaining a refined elegance.
This project vividly showcases Casas’ style, blending Angra House with its surroundings, creating harmonious and cohesive space.
- Angra House by Arthur Casas | Source: ArchDaily
- Angra House by Arthur Casas | Source: ArchDaily
JD House
JD House represents Casas’ vision of creating spaces that are not just lived in but profoundly experienced. Located in São Paulo coast, Brazil, this project aimed to develop a cohesive space where the family can build memories, surpassing the concept of a home, embodying a celebration of harmonious living, where architecture and nature coexist beautifully.
- JD House by Arthur Casas | Source: ArchDaily
With its open-concept design that seamlessly integrates the outdoors, JD House is enveloped by vibrant, lush gardens, creating a peaceful and immersive living environment. The incorporation of sliding glass doors removes the barriers between the interior and the vibrant landscape, providing freedom and connection to the outside world. Additionally, Casas’ use of natural materials and minimalist design harmonize with the organic environment, displaying a timeless appearance that exudes contemporary elegance.
- JD House by Arthur Casas | Source: ArchDaily
- JD House by Arthur Casas | Source: ArchDaily
Onda Sideboard
Arthur Casas’ vision extends beyond architecture into furniture design. The Onda Sideboard is the reflection of his naturalist and contemporary philosophy. Inspired by the natural fluidity of the ocean, this piece replicates the soft wavy lines of the ocean waves, inviting the motion and elegance of the ocean into your home, blending once more design with nature.
Meticulously designed, this piece blends luxurious wood textures with detailing that mirror waves, reflecting, once more, Casas’ passion for incorporating natural elements into his designs and projects. The Onda Sideboard is not merely a storage unit, it’s the declaration of how elegant and natural design can transform a space.
- Onda Sideboard by Arthur Casas | Source: Pinterest
Arthur Casas transforms architecture by effortlessly integrating design with the natural world. With notable creations such as Angra House, JD House, and the Onda Sideboard, he dismantles the divisions between indoor and outdoor areas, promoting unity and a bond with nature.