The listing, DC13070011, appears to be listed in the MLS as having 9.892 acres because it actually includes three different parcel's.  The MLS only let's you associate one parcel, and the one selected is APN 0585-231-22-0000, which is a 3.673 vacant lot.

The other two APN'S (parcels) that are included in the sale are:

058523123: Vacant Lot, 3.466 Acres
058523124: Vacant Lot, 2.753 Acres.

These three parcels combined equal 9.892 acres.  None of the tax records for the three lots indicate a cabin is present.
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