Duplex Legal Description Question

[Kenan Heppe]

Hey BP World!

I have a duplex, which consists of two detached units, as well as a detached garage. On ZIMAS, though, one can see my property is zoned LAR1. However, it’s assessed as a multi-family (duplex). 

The main house was made in 1921. The second house in the 1930s or 40s. In the appraisal, it’s shown as “legal non-conforming,” which implies it used to be zoned properly, but now it’s not. 

My question is, is it right to describe the property as a duplex? Is it a “legal duplex”? Is it a “legal non-conforming duplex”? What’s the best, legal description? 

Calling it a single family home isn’t right. It has two separate addresses, and two certificates of occupancy.

Originally, I was hoping to do a garage ADU conversion. But I think I won't be able to, because it's LAR1, and I technically already have a second unit built? Would my second unit, as far as zoning is concerned, be considered my "ADU"?

Thanks!