Ok.  Sounds good.  Honestly, easiest way is to draw the buildings in iD editor and then walk and add addresses, or use an app called StreetComplete where you can place the addresses live as you walk around and add otger details.  It's actually a really polished and easy to use app.

Let me know if you need help adding these addresses to the map or need someone to check your changesets.

Welcome to OSM!  There's also an active discord and Slack.  :D