Yes, and at least historically, you can also write only the short part of the addresses that differs from yours. Just put the street address if sending it in th

Yes, and at least historically, you can also write only the short part of the addresses that differs from yours. Just put the street address if sending it in the same town, and let the postal service take care of the rest. Today sorting centres are more centralised and that's not a good idea. But you don't include a line for the country if you're sending a letter domestically.