Outbuildings accessory to one and two family homes are still residential.
They may be zoned residential but they are not dwelling units.
A stand alone garage is not a "dwelling unit" as defined in Article 100 regardless of how it is supplied.
It does not matter if it is located on a dwelling units property, it is still not a dwelling unit so you must use 310.16
[This message has been edited by iwire (edited 11-19-2006).]