Checking Address registration?

[Brandon Miquelon]

This is my 1st post in the forum, so this might be a dumb question.  I recently bought an old multi-unit property in southwest denver that needs a LOT of work. I need to request new service from Xcel Energy to pull dedicated power to a carriage house that I plan to live in while I rent out the main house. Xcel requires a registered address to install new electrical service to a property.
...How do I check to see if my carriage house has an official address?

i should also clarify this is my 1st purchase, so I'm very new at this and a little intimidated! Trying to buy in Denver right now is like fighting in a gladiator arena

😩