Inside a 1,800m² Brazilian Masterpiece with an 11-Meter Cantilever! | Grama House by Arthur Casas

Welcome to a full walk-through of Grama House, a jaw-dropping 1,800-square-meter (19,375 sq ft) modern mansion completed in 2025. Located in the highly exclusive Fazenda da Grama enclave in Itupeva, São Paulo, this architectural masterpiece designed by Studio Arthur Casas perfectly balances structural daring with organic tranquility. In this episode, we explore how one of Brazil's most celebrated architects tackled a sloping, one-acre corner lot to create a residence that spreads out, breathes, and integrates seamlessly with its environment. From the dramatic floating cantilever to the subterranean collector's garage and beautifully curated interiors, discover the brilliant details that make this home one of the most significant achievements in contemporary residential design. Key Tour Highlights: The Gravity-Defying Cantilever: We break down the engineering behind the home's primary focal point—a massive 11-meter (36 ft) office volume that suspendedly floats over the main entrance, doubling as a porte-cochère. To make this possible, engineers used internal steel trusses anchored by robust concrete columns to support heavy custom woodwork resting at the very tip of the projection. The Split-Level Logic: Rather than imposing a massive vertical block, the home uses a split-level floor plan that follows the natural contours of the hill, allowing the daily living spaces to function comfortably on a single connected level. A Hidden Car Collector's Paradise: Built directly into the slope, the lower ground floor contains a specialized, state-of-the-art garage designed to showcase the homeowner's private vehicle collection. Tectonic Continuity: Learn how Studio Arthur Casas achieved visual harmony by utilizing the same material palette inside and out, combining raw natural stone, smooth textured plaster, dark metal, and highly durable Accoya timber. Bespoke Brazilian Furniture & Art: Walk through the social zones furnished with custom designs by Arthur Casas alongside mid-century masterpieces by design legends Sérgio Rodrigues and Jorge Zalszupin, highlighted by curated fine art. Lush Oasis Landscaping: See how landscape architect Rodrigo Oliveira crafted native gardens that blend the home into the surrounding preservation area, softening its clean horizontal lines. Project Credits: Architecture & Interiors: Studio Arthur Casas Lead Architect: Arthur Casas Structural Engineering: Benedictis Engenharia Landscape Design: Rodrigo Oliveira Paisagismo Contractor: TNC Construções Photography: César Béjar