Who would purchase a lot in an undeveloped parcel? It is like having 5 acres of land that I plan to divide into 1/2 acre lots but I haven't yet subdivided the parcel. How can I then sell a lot until it is subdivided? Once the 5 acres is subdivided and developed, corner lots will have more value than non-corner lots and lots on a cul-de-sac will have more value than lots that are not so located. Lots with a view or that have a lot of trees or, or, or...will have more value. Until the property is developed it is a waist of time valuing the property per lot. Now, if this is a development loan and you will have a first lien position in the land, then you value the property per each anticipated lot and don't exceed 75% of the value of all lots in doing the development loan. But if it is just secured by the parcel don't value per lot, because there are no lots.