Ind. Code § 36-7-2-5.5
A unit may not require that a lawfully erected sign be removed or altered as a condition of issuing:
(4) any other order concerning land use or development;
unless the owner of the sign is compensated in accordance with IC 32-24 or has waived the right to and receipt of damages in writing.
As added by P.L.163-2006, SEC.19.