The street number should be mounted on the residence so that it is visible from and oriented toward the street from which the address is taken. If distance or vegetation blocks the number, then the number must be posted on a sign at the driveway entrance. Non-compliance with the street number posting may be subject to civil penalty. The address will be assigned during the building permit phase of construction. If you have a well on your property, you can apply for an address for the well. All you have to do is submit a completed "address request" form along with the site plan and a copy of the Arizona well registration number.