Model Home Open Sat & Sundays 11am-4pm. Welcome Home to St Helens' newest subdivision with the perfect blend of quality and affordability. Graystone Estates offers 78 New "semi-attached" 3 & 4 Bedroom homes ranging in price from $379,900 - 450,900. (No common walls). You'll love the modern open floor plan. Photos are of similar model home. Estimated completion 9/30/21.