Estate Homes In Milton GA. Homes Built from 2008+ on over 1 acre lots. 74 Acre Community of Valmont located just North of Alpharetta in the City of Milton GA / horse farm estate area of North Fulton. Lots range in size from 1 to 3 acres. The neighborhood of Valmont has a 6 acre conservation area with jogging / walking trails, and open green space, 4 distinct neighborhood parks, a free form pool, clubhouse, stocked fishing pond, and outdoor pavilion with a fireplace and BBQ pit. Builders include Steve Casey Homes