An extraordinary opportunity awaits at 160 Spring Grove Avenue where years of thoughtful planning meet a rare chance to build with confidence in one of Marin's most coveted settings. Backed by over 2.5 years of entitlement progress and Planning Department approvals, this offering is further elevated by California's SB 450, streamlining the path forward with greater certainty, reduced timelines, and minimized entitlement risk. Set within the scenic beauty of San Anselmo's Ross Valley, the approved plans envision a sophisticated 5-bedroom, 3.5-bath modern Mediterranean residence designed to harmonize timeless architecture with today's demand for light, flow, and connection to nature. This is more than land; it's a vision, ready to be realized. The homesite is a study in balance and intention. Nestled among majestic redwoods and oriented to capture sweeping mountain vistas, the design preserves the integrity of the natural landscape while maximizing privacy, usability, and views. Carefully integrated into the hillside, the project meets all setback requirements and includes thoughtful enhancements for access, safety, and neighborhood compatibility supported by a shade study confirming minimal impact on surrounding homes. Inside, the future residence is conceived for both elevated entertaining and everyday living. A grand, light-filled great room opens seamlessly to expansive outdoor spaces, including a view-facing balcony ideal for al fresco dining or quiet mornings above the valley. Spa-inspired bathrooms, flexible living areas, and a refined material palette create a home that feels both luxurious and livable. Built with performance in mind, the design incorporates prefabricated structural insulated panels for superior energy efficiency, along with durable, low-maintenance finishes and a fully electric system with radiant heating. The result is a residence that is as sustainable as it is beautiful crafted for long-term comfort and modern living. All of this, just moments from the charm and vibrancy of downtown San Anselmo, where boutique shopping, cafes, and restaurants create a true sense of community. At 160 Spring Grove Avenue, the heavy lifting has been done. What remains is the opportunity to build, to create, and to bring a remarkable vision to life in one of Marin's most special locations. Potential Seller Financing depending on terms.