it is, but since most of the courier will insist of the exact address, then you must include it as well. if its a well known courier (i.e. DHL, Fedex, TNT) they would know your office. and dont forget to provide your contact number as well :) 

- live your life as simple as you are

- money doesn't create man, but it is the man who created money

- don't do what others say, just listen to them, but do what you feel good