Estate Homes Built By Peachtree Residential Properties. Danbury Park is an estate community of homes located in the City of Alpharetta, North Fulton GA 30009, just off Mayfield Rd. near the heart of Crabapple. The average list price for a home is between $329,777.00 to $569,900.00, at time of post. Danbury Park is a swim and tennis community and there are 59+/- homes in the estate neighborhood of homes built between 1999 to 2000 and built by Peachtree Residential.