Enjoy the best of Boulder County living in this expansive 4BD/4BA residence featuring inviting living and entertaining areas and over an acre of exceptional outdoor space on a peaceful Niwot cul-de-sac. Inside, discover tall ceilings, hardwood floors, and oversized windows. The gracious entry opens to formal living and dining rooms. Ahead, the vaulted fireplace family room flows to a sprawling gourmet kitchen with wood cabinetry, granite countertops, and stainless steel appliances. The walk-in pantry delivers generous storage, while the breakfast nook overlooks mature conifers. A carpeted bedroom, full guest bath, two roomy closets and a mudroom complete the well-planned main level. Outside, take in the 1.09-acre property's gorgeous mature trees, manicured landscaping and lovely outdoor entertainment areas. Huge treetop decks boast dramatic views of Front Range peaks and cotton-candy sunsets. In the dining pavilion, a fireplace, television, speakers and a built-in outdoor kitchen make al fresco entertaining irresistible. Below, the fenced yard and shed are perfect for pets, play and gardening. Ascend the gracefully curved staircase to explore the serene primary suite's king-size bedroom, balcony, extra-large walk-in closet and en suite spa bathroom. Two spacious and bright secondary bedrooms share a full bathroom on this level, while a corner office, hall closet and laundry room add convenience. Those with a passion for entertaining will love the expansive lower level, where a huge media room and rec room flank a walk-up wet bar. Enjoy plenty of room for a gym, theater, billiards area and more alongside a full bath, large workshop/storage room, and two closets. A long driveway, attached three-car garage and curated gardens add ample parking and curb appeal to this turnkey Boulder County beauty close to charming local shops, miles of trails, top-rated St. Vrain Valley Schools and Longmont amenities. Just 20 minutes from Boulder and 45 minutes from Denver.