HELOC on owner occupied duplex

[Alex Clopton]

I'm looking to get an +80% HELOC on an owner-occupied duplex I own in Denver, CO. I've talked to a few credit unions that tell me, despite me occupying one of the units as my primary residence, they consider it an investment property and can only provide up to 70% LTV with investment property interest rates. Anyone know of a credit union or other type of lender that would count a property like this as a primary residence and provide a HELOC at +80% LTV?

Thanks!