440 Cold Springs Road Howell Mountain Estate | 40 Acres | Panoramic Valley Views Perched on 40 private acres within the prestigious Howell Mountain AVA, this remarkable estate offers panoramic, unobstructed 180‑degree views spanning St. Helena, surrounding vineyards, and the Napa Valley floor. Completely private and positioned at the end of Cold Springs Road, the property delivers exceptional seclusion paired with awe‑inspiring vistas. The modern chteau‑style residence features six bedrooms, complemented by two additional guest or in‑law suites located on the fourth level, ideal for extended family, guests, or flexible living arrangements. The home's dramatic two‑story living room is highlighted by soaring ceilings and a wood‑burning fireplace, seamlessly opening onto an expansive deck designed to capture the sweeping valley views. The main level offers a thoughtfully designed flow, including a gourmet kitchen with walk‑in pantry, formal dining room, and inviting family roomperfect for both entertaining and everyday living. Additional amenities include a four‑car garage, dedicated workshop room, and potential wine cellar, offering abundant storage and customization opportunities. This rare Howell Mountain offering combines privacy, scale, architectural presence, and world‑class views, creating an exceptional Napa Valley retreat.