21718 Southern Valley Ln is listed for sale at $ 329,990. The Single-Family property has 4 bedrooms, 3 Full Bathrooms, 2226 square feet and was built in 2026. The lot size is 5952 Square feet. ##BR##Welcome to the Olive III plan by Brohn Homes, offering refined single-story living in the sought-after Harrington Trails community of New Caney. This elegant home features 4 bedrooms, 3 full bathrooms, and 2,260 square feet of thoughtfully designed living space that blends sophistication with everyday comfort. The open-concept layout highlights expansive living and dining areas, perfect for family gatherings and entertaining. A stylish flex room adds versatility and can easily serve as a home office, cozy game room, or additional family lounge. The serene primary suite provides a private retreat, while the well-appointed secondary bedrooms offer comfort, flexibility, and privacy for the whole family. A 2-car garage enhances both convenience and functionality. Surrounded by tall pines and open green spaces, Harrington Trails offers a refreshing way of living in New Caney’s growing northeast corridor.