&quot;The street finds its own uses for things.&quot;<p>Where I am (Australia) theres a whole bunch of places that&#x27;ll provide &quot;non Post Office PO boxes&quot; who&#x27;re perfectly happy for you to address things to &quot;Suite 306&quot; or &quot;Apartment 306&quot; as well as &quot;PO Box 306&quot; at whatever address the box is located. Fools _most_ of the &quot;must be a real address, not a PO Box&quot; restrictions.<p>(Interestingly StartSSL failed me on that once when I gave one of those as a personal address - they mailed me saying &quot;that looks like a business address, we need a personal home address for personal identity validation&quot;) - I dunno of they Google Street-viewed it or of they&#x27;ve got some automated system that flagged it...)