Graystone Hills, off Longmire in Conroe, is a Master Planned 331 acre community and home of National Blue Ribbon Geisinger Elementary. Builders in Graystone Hills include Village Builders, Chesmar Homes, H.G. Walton & Sons Custom Homes, and Gehan Homes.  Ammenities include Greenbelt trails, community parks, a nature preserve and a recreation center with resort-style swimming pool.  Homes are currently (September 2015) listed for sale in Graystone Hills from $243,00 to just under $500,000.

Graystone Hills has an estate section on Cliff Manor and Lake Manor feature larger lots and homes built by Village and Trendmaker.  Homes are currently listed from the 500's.