Set behind a garden gate on one of Mill Valley's most established streets, this landmark 1911 Craftsman, originally built by the city's first mayor, offers a rare blend of architectural integrity, privacy, flexibility, and an exceptional double lot setting. A gracious approach leads to a welcoming porch where expansive windows frame mature gardens and Mt. Tamalpais views. Inside, a light-filled entry opens to beautifully preserved interiors featuring box beam ceilings, rich wood paneling, built-ins, and hardwood floors, thoughtfully paired with modern updates. The main level features a generous living room with a clinker brick fireplace, formal dining room, and fully remodeled kitchen with marble countertops, custom millwork, and refined brass detailing. A powder room and mudroom provide convenient access to the outdoors and carport. Upstairs, the primary suite captures Mt. Tam views and includes a walk-in closet and an updated bath. Two additional bedrooms offer flexibility for family, guests, or office use. The lower level expands the home's versatility with two bedrooms, a full bath, second kitchen, separate entrance, and direct garden access, ideal for guests, extended family, or potential ADU use. Set on an exceptional 17,500 sq ft lot, formerly two parcels, the property offers a rare sense of space, privacy, and sun exposure seldom found this close to downtown Mill Valley. The gardens, previously featured on the Mill Valley Garden Tour, include mature landscaping and multiple outdoor living areas. Bordering Staircase 17, the property enjoys a direct pedestrian connection to downtown Mill Valley, offering a unique combination of seclusion and accessibility. Zoned for two units and currently configured as a single-family residence, the property offers exceptional flexibility and future potential. Recent improvements include a new roof, updated electrical, remodeled kitchens and baths, and enhanced insulation. Additional features include a three-car Craftsman-style carport with EV charging, off-street parking, and multiple access points. Located moments from downtown Mill Valley, top-rated schools, and the trails of Mt. Tam, this is a rare opportunity to own a historic property with exceptional land, character, and versatility.