A custom-built mailbox may be installed in developments constructed and already receiving mail service before the adoption of this chapter if an application for approval of a custom-built mailbox is submitted to the City for review and is approved. A custom-built mailbox must conform to the following requirements and the rules set forth in the application:
1. The structure supporting the mailbox shall be at least 12 inches from the back of curb.
2. The mailbox structure shall not exceed the dimensions of 2 feet in width, 2 feet in depth, 5 feet in height.
3. The mailbox structure shall be located on a concrete pad, 2 feet 6 inches wide, 2 feet 6 inches deep, and 4 inches thick. The mailbox structure shall not be permanently affixed to the concrete pad in an attempt to make structure rigid.
4. The local postmaster shall approve and sign off on the application before submittal to the City.