1-26-705. Effect of condemnation action on value.
(a) The fair market value of the property taken, or of the entire property if there is a partial taking, does not include an increase or decrease in value before the date of valuation that is caused by:
(i) The proposed improvement or project for which the property is taken;
(ii) The reasonable likelihood that the property would be acquired for that improvement or project; or
(iii) The condemnation action in which the property is taken.
(b) If, before completion of the project as originally adopted, the project is expanded or changed to require the taking of additional property, the fair market value of the additional property does not include a decrease in value before the date of valuation, but does include an increase in value before the date on which it became reasonably likely that the expansion or change in the scope of the project would occur, if the decrease or increase is caused by any of the factors described in subsection (a) of this section.
(c) Notwithstanding subsections (a) and (b) of this section, a decrease in value before the date of valuation which is caused by physical deterioration of the property within the reasonable control of the property owner, and by his unjustified neglect, may be considered in determining fair market value.