Open a building. For more information on how to do so, see section 4.6.1., 5.4.3. or 6.1.1.
Go to the building card (see image below).
Click the tab called "General" (see image below).
Click "Add new address type" (see the first image below). When you do so, a window called "Add new address type" will open (see the second image below).
Go to the window called "Add new address type".
Specify which type of address you wish to link to the building you are working with by:
a. clicking the field "Add address type by selection" and selecting an address type from the list that opens (see images below).
b. enter an address type in the field "Add address type by text" (see images below).
Go to the building card. In the building card you will see that an address of the type that you selected in step 6 has been linked to the building you are working with (see image below).
Set a street address, a postcode, a city and a country for the address you linked to the building you are working with via the fields called "Street", "Postcode", "City" and "Country" (see image below).
Specify whether or not the address you linked to the building you are working with should be the building's primary address by selecting "Yes" or "No" below the label "Primary address" (see image below).
Click "More info" (see the first image below). When you do so, an address card will open that you can use to add more information to the address you linked to the building you are working with (see the second image below). If you do not wish to add more information to the address you linked to the building you are working with, you can skip this step.