An appraisal method for setting a value on a corner lot. The lot is appraised as an inside lot for its front footage on both streets. The two values are then added to find the value of the corner lot. For example: Lot 1 fronts 100' on street A and 100' on street B. The value of a 100' inside lot on street A is added to the value of a 100' inside lot on street B to find the value of lot 1. Also called the Bernard Rule.