Both Buyer And Seller, Portland, OR
If the cabin is attached to the land via foundation, then it is viewed as a stick built home and taxed accordingly. The value of the cabin will be attached to the value of the property, and so you're looking at the value of the over all package instead of one or the other. The cabin will maintain its value and assist the value and future marketability of the land cabin package. If the value of the package goes down, it will not be because of the depreciation of the cabin, but rather poor market conditions. Also when the cabin is attached to the land, the RV label is stripped and the structure is converted to conventional stick built/ manufactured home status, but now days having the RV status is no longer important because the portable cabin is taxed as if it were a manufactured home or stick built.