Castlebrooke Homes for Sale in Cumming GA Search MLS listing for homes for sale in the Castlebrooke subdivision in Cumming GA 30040.  Castlebrooke is a Cumming GA subdivision of 225 single family homes and the listing prices as of today's post are in the low $300K's to mid $400K's.  Castlebrooke subdivision amenities include a community swimming pool, tennis, a community clubhouse, a lake, has a playground for the kiddies and located not too far from Lake Lanier.  If you are interested in buying or selling a homes in Castlebrooke, please feel free to contact us for more information!  We can represent you as Cumming GA real estate agents, either buying or selling.  There are a few homes in Castlebrooke for sale and ready now, call for details. Schools Elementary: Whitlow Middle: Otwell H... 06/05/2011