Funding for residence with ADU

[Lee Barbara]

My wife and I currently run an Airbnb in our basement apartment in our primary residence. We'd like to hold onto it as a rental and buy another SFH as our primary with an already-built separate ADU. My question is, do banks consider the potential rental income of the new ADU the same way they'd consider rents if we purchased a multifamily property when determining how much they'd be willing to loan us? The price range we are looking in might be slightly outside of what lenders might consider our purchasing power just from our combined w-2 income, but the numbers easily work if ADU rental income is considered on the new property.

Thanks in advance for your guidance!