An address can do several jobs
An address may locate a home, direct a reply, identify an account or describe where an object used to be stored. It does not automatically locate every event mentioned in a letter. Preserve the address as written and check what role it serves before using it to place a person or action on your map.
Worked example: workplace stationery
A letter written on yard stationery describes a private conversation. The printed workplace address may tell the recipient where to send a reply, while the conversation occurred elsewhere. A diary or explicit sentence can establish the meeting place. Without that support, setting the scene among machinery merely because of the letterhead adds detail the record does not provide.
Compare dated location evidence
If a street was renumbered or a building changed use, look for the supplied plan or note that connects old and new descriptions. Do not assume the modern map answers every historical address question. In Somatry, keep location aliases linked only where the case supports them. A precise note such as address used for replies, meeting location unstated is more useful than an atmospheric reconstruction that makes the documents seem clearer than they are.