Nestled along the coast of Riviera de São Lourenço in São Paulo, Brazil, the Casa D31 project by Raiz Arquitetura offers a weekend escape for a young couple and their children. Designed to seamlessly connect with the natural surroundings while providing a comfortable and inviting interior, this beach house is a harmonious blend of glass elements and strategic design choices.

daytime exterior view of modern house with tropical plantsBreaking from conventional designs, Casa D31 features a dynamic and contemporary facade that invites second and third looks. A combination of volumes and natural elements creates a unique aesthetic while maintaining privacy for the homeowners.angled front view of modern house exterior with slatted shade on front surrounded by plantscloseup exterior view of modern house with tropical plantspartial exterior view of modern house with black and white detailspartial rear exterior view of modern house with extended covered patio and poolOne of the key elements of Casa D31 is its integration with the natural surroundings. Strategically placed openings in the main area’s volume allow the residents to immerse themselves in the tropical greenery. The landscaping brings natural textures and tones into the living room, creating a seamless blend of indoor and outdoor spaces.covered patio view of modern house with outdoor kitchen, eating and seating areasThe L-shaped design plan allows the main living space inside to be integrated into the covered patio in the outdoor area just steps away from the pool.covered patio view of modern house with outdoor kitchen, eating and seating areascovered patio view of modern house with outdoor kitchen, eating and seating areascovered patio view of modern house with outdoor kitchen, eating and seating areas with view of pooldown view in modern house looking down to living roomExtensive glass panels and well-placed openings create a sense of openness, flooding the interiors with natural light. This ensures an airy ambiance but also promotes cross ventilation, maintaining comfortable temperatures even on hot summer days. The integration of the kitchen with the backyard area further strengthens the connection between indoor and outdoor living.angled interior view of modern double-height living room with views outside and into kitchenThe pillar-free structure of the house, combined with the fully-equipped balcony and pool in the outdoor area, invites residents to enjoy the space fully.partial living room view in modern house looking into kitchenangled view of modern living room with massive opening to outsideview of modern living room with massive opening to outsideangled view of minimalist modern kitchenview of minimalist modern kitchenview of minimalist modern kitchenangled view of front entryway in modern home with dramatic open staircase and sitting areaAn open staircase installed alongside the front windows leads to the second floor. This level houses five bedrooms, including a primary suite that offers a panoramic view of the surrounding landscape.view from upper level looking down into open living space below in modern housepartial view of modern bedroom with glass enclosed bathroomThe main bedroom features a “glazed box” for its ensuite bathroom, allowing for visual connection with the bedroom or complete privacy when desired.angled view of modern bedroomangled view of modern tv watching roomangled exterior view of modern home's rear at sundown with lights on and views of the poolexterior view of modern home's rear at sundown with lights on and views of the poolexterior view of modern home's rear at sundown with lights on and views of the poolexterior view of modern home's rear at sundown with lights on and views of the poolangled evening view of the front facade of modern homePhotography by Leonardo Giantomasi.

Caroline Williamson is Editor-in-Chief of Design Milk. She has a BFA in photography from SCAD and can usually be found searching for vintage wares, doing New York Times crossword puzzles in pen, or reworking playlists on Spotify.

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