One level. One home. The one you've been looking for. At 3,744 square feet, all on one floor, 15 Thorsson Court stands alone. There is simply very few other homes at this size, at this price, 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 the Pleasant Valley area in Novato. This custom-built 4-bedroom, 4-bath home was designed for a life without compromise. No stairs. No split levels. No carrying groceries up a flight. Just wide-open, gracious living from the moment you arrive. Inside, 10-foot ceilings and new wide-plank oak hardwood floors create an immediate sense of scale and warmth. The open kitchen with island, pantry, and gas cooktop flows seamlessly into the family room and breakfast area, anchored by one of two fireplaces. The spacious living room's second fireplace adds quiet warmth for cool Marin evenings. The primary suite is a true retreat: sitting area, outside access, double vanity, soaking tub and walk-in closet. A dedicated guest ensuite means visitors and family members have genuine privacy; a setup that works beautifully for multigenerational living or extended stays. A separate office keeps work neatly apart from life. And then there's the wraparound sun porch, flooded with natural light, it stops every first-time visitor in their tracks. It's the room that turns a great house into the one you remember. Outside: Lawn, garden areas, a bubbling hot tub, and room to simply breathe. A 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.