Publication 28 - Postal Addressing Standards > Appendix I > I2 Address Formats > I22 Apartment Buildings and Condominiums
There are two basic address formats for apartment buildings and condominiums.
Example:
Certain condominiums are located on an unnamed street and may not have an assigned number. The name of the condominium substitutes as the street name and the number 1 is used when no building number exists.
When there are multiple buildings (or towers) with the same name, the building number becomes the primary number.
Examples:
Incorrect Form
Correct Form
COND VERDE APT 1120
1 COND VERDE APT 1120
VISTA SUITES III APT 104
3 VISTA SUITES APT 104