Can I get a separate mailing address and utilities for an ADU?

[Daniel Nishiguchi]

Hey Bigger Pockets Forum,

I'm currently in the process of purchasing a 4/2 single-family home that has 2/1 with kitchen upstairs and a 2/1 with kitchen downstairs with a separate entrance (the ADU). I'm wondering what the process is to separate utilities and get a separate mailing address for it - is this even possible?

After reading around the forums, it seems like there's a mixture of landlords charging utilities in the rents and landlords trying to sub-meter but my agent said that getting sub-meters installed will be too expensive so I think that's out of the question.  Are there any other solutions?  My plan is to treat the property as a duplex with two separate tenants.

With that said, I'd really like to have two mailing addresses (like 101A & 101B or something) so tenants don't have to interact with each other unless they want to.  Who do I contact to set this up? USPS?

This is my first residential property ever so I'm nervous but excited!

Any help would be greatly appreciated,

Thanks,

Daniel

Property is in Oregon City, OR.