Because its detached from the house would i have to call it an accessory dwelling unit?

It is what is termed an accessory use, meaning it has to go with something else i.e. a residence. 

Hi,So my friend is building a ~600 sq foot ADU (Accessory Dwelling Unit) in their backyard to be rented out as a "private residence" (think of it like a 1 bedroom studio/apartment with its own living space/bedroom/bathroom. 

What my wife and I ended up doing is remodeling the house with an addition and converted the garage into an Accessory Dwelling Unit (permitted and rentalble guest house with separate address and electrical meter).  

., which is usually right next to the Planning Dept.A shop like that would typically be allowed in a residential zone, but only as an incidental accessory use, not to be rented or used for business purposes.

Need to obtain a Certificate of Occupancy as a 1 or 2 family house (R‐3) with a tourist home accessory use.1.

He did note accessory dwelling unit.

You can call the Garage Conversion a "Junior ADU""Require the accessory dwelling units to comply with all of the following:(i) The unit may be rented separate from the primary residence, but may not be sold or otherwise conveyed separate from the primary residence.

Perhaps you can find a house with an accessory unit in the back, so everything is on one level for her.

I have a client who is renting their Accessory Dwelling Unit (a 350 square foot detached studio) for $2,150/month!