Welcome to 509 C St, a piece of SF in Marin. This remodeled 1900s traditional home lies in the heart of Gerstle Park. This 3+ bedroom single-level with a flexible floorplan blends classic architectural charm and period details with thoughtful modern updates. The living room features picture windows, inviting natural light and views of the front porch. The first bedroom or family room includes a built-in office nook. The updated kitchen marries timeless design with everyday functionality and flows seamlessly into the dining room and out to 1 of 2 decks--ideal for outdoor dining. Next is a full bathroom and versatile extra room which could be an office or a guest room. The primary suite features backyard access, ample closet space and a spa-inspired en-suite bath with double vanity and walk-in shower. A large lower level provides additional flexible space--perfect for a home gym, play area, or wine storage. The garage includes laundry, generous storage and a full bathroom with shower. Outdoors, enjoy the sun-filled, landscaped backyard with a level lawn, mature plantings and spacious wood deck--ideal for al fresco entertaining or quiet evenings under the stars. Featured on HGTV’s Curb Appeal. With a 92 Walk Score, its moments from downtown San Rafael’s vibrant restaurants, shops, cafés, and farmers' market.