The home I am speaking of is a one story brick home that does not have a carriage house. The home you are thinking of is across the street.
That is one in the same. White colored, right? The carriage house with business downstairs is actually on the neighboring lot, which if I remember correctly was split off the parent parcel, in order to be able to build it.
I, too have always understood that VMU includes residential use, if one chooses, but the Land Use Code is as clear as mud, noting residential use in another category, but doesn't list it as a specific use in the VMU.
Regardless, the lot is a nice lot in a great location for someone wanting to be in a very centralized location of SoWal. They don't get much more centered than this one.