National Address registration in mandatory in Saudi Arabia for any official and Governmental documentation.
You will see in this Post how to get the Saudi Arabia National address registration Step by step.
How to Register National Address from Saudi Post Website.
Open the Website and Click on My Post Online
Click on Absher (National Sing Sign-On ) SSO Login
Enter your IQAMA Number and Absher Password.
Click National Address Registration
Fill the required Region, City, Area and Building number and Save.