New DADU build permit question in Nashville

[Zoltan Gati]

I'm wanting to build a new DADU on my property in Nashville that is eligible for such a structure. However, I understand that as a homeowner, I cannot pull building permit for a new DADU, a licensed GC has to do it.

The builders I talked either don't even bother giving any sort of estimate or the estimate is crazy high. Meanwhile, I already have a set of contractors (framers, plumber, electrician, HVAC, drywall, etc) so I'm ready to be my own GC and also DIY some of the finishes (trim, tiling, painting, etc).

Does anyone know if there is a way around this? Eg. pull an owner's permit to build a garage first and then pull a second owner's permit to convert existing structure to living space?

I'd also love hear any reasonably priced builder/GC recommendations if you have any! Thanks.