So, this was not an actual assignment for money, it was for a family member in a different area from me. Okay, I called the assessor's office in the subject's county. Two different appraisers from the office had to help on this one. They kept saying that it is at least a PUD, because of the common area. I asked what common area, and they told me the land between the two dwellings was actually common area. Now this house was sold with a fence between the two dwellings, and with the understanding that everything between the dwelling and the fence was indeed owned/part of the subject dwelling. Boy was the owner angry when I called her and informed her that she might want to get some legal advice on this, in terms of personal liability for insurance purposes. BTW the subject is insured as a SFR-detached dwelling. Also, two different appraisals from the past two years state that it is indeed not a condo, but a detached SFR, and property taxes have been based on Detached SFR comps, not PUD common area type comps. The local assessor called this one "An odd duck." I'll say!
Thanks again to everyone who put in their opinions on this one!