No stairs. Ever. At 3,744 square feet, all on one floor, 15 Thorsson Court stands alone. Very few homes at this size, at this price, exist on one level in Marin County. If you've been searching and coming up empty, this is why. They hardly exist. Until now. Set on a quiet cul-de-sac in Pleasant Valley, Novato, this custom-built 4-bedroom, 4-bath home was designed for a life without compromise. No split levels, no carrying groceries up a flight, just wide-open, gracious living from the moment you arrive. Inside, 10-foot ceilings and wide-plank new oak hardwood floors create an immediate sense of scale and warmth. The open kitchen with island, pantry, and gas cooktop flows into the family room and breakfast area, anchored by one of two fireplaces. A second fireplace warms the living room on cool Marin evenings. The primary suite is a true retreat with a sitting area, outside access, double vanity, soaking tub, and walk-in closet. A dedicated guest ensuite offers genuine privacy, ideal for multigenerational living. A separate office keeps work apart from life. The wraparound sun porch, flooded with natural light, is the room that turns a great house into the one you remember. Outside: lawn, garden areas, a bubbling hot tub, and room to breathe. A new roof, three-car garage, owned solar, central A/C, and underground utilities mean every practical detail is already handled. Moments from Harvest Market, Miwok and O'Hair Parks, Stafford Lake, Mount Burdell Open Space, and award-winning San Marin High School.