That would be an assumption IMO. If you have to gain permission from 6 landowners just to gain access to the property, then that means there is no Right-of-Way in the purchase agreement.
If there is no ROW, then it is Land Locked.
Which means, the 6 other Land Owners would have to give permission for any new owner of this property, just to get to their own property. (The same would hold true for the present landowner.)
NOW, what is the value of the land?
You would have to ask the 6 other landowners.
What if they want it for themselves?
I imagine in the world of real-estate, this is what's called a Shit Show. lol
I personally know of such a property like this.
It was divided up family property, that was not well thought out years ago, when it was assumed that it would stay in the family.
A landlocked piece of it went up for sale and stayed that way for approx. 20 yrs.
One of the adjacent parcels, that had access to it, was purchased.
The new owner of that one, bought the first parcel, for about 40% of the asking price.
Market Data 
Markets 
AI
