The mailing / home address for a lead is pertinent information that you must have saved on the CRM system.
To add in the mailing address just follow the steps below.
Step by Step Instructions:
Click on the person's name that you want to add in the address for.
Now scroll down to the Lead Details section on the left of the lead profile screen.
Clcik on More Details
Now enter in the complete address into the empty address field.
Click anywhere outside of the address field to save the information.