You must submit an Architectural Change Request and wait for written approval BEFORE proceeding.
From covenants section VIII:
VIII. S. Fencing. All fencing is subject to the following conditions, commitments, and restrictions:
VIII. S. 1. All fencing in Burton Crossing shall be limited to one of the following choices: Wrought iron/aluminum, vinyl, wood shadow box or vinyl clad chain link.
VIII. S. 2. Fencing is not allowed to encroach upon front or side yards. Fencing must be placed at the rear foundation of the home.
VIII. S. 3. The maximum height for fencing shall be 48 inches above grade, subject to the following exception: Lots situated along the perimeter of Burton Crossing may erect fencing with a maximum height of 72 inches above grade. The following lots are subject to the height exception: 9, 10, 11, 12, 13, 14, 15, 16, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 77, 78, 79, 80, 81, 82, 83, 117, 118, 119, 120, 121, 122, 123, 124, 1125, 127, 128, 129, 130, 131, 132, 134, 135, 136.
VIII. S. 4. The following lots must maintain a uniform style and height of fencing, as required by Zoning commitment: 1, 2, 3, 4, 5, 6, 7, 8, 40, 41, 42, 61, 62, 63, 64, 71, 72, 73, 74, 75, and 76. The fence styles shall be limited to one of the following choices: Wrought iron/alumninum, vinyl, vinyl clad chain link. The height shall be limited to no more than 48 inches above grade.
Full covenants section is here.