S.D. Codified Laws § 11-8-53
If any official, commissioner, or employee referred to in § 11-8-52 presently owns or controls or owned or controlled within the preceding two years, any interest, direct or indirect, in any property which he knows is included or planned to be included in an urban renewal project, he shall immediately disclose this fact in writing to the local governing body, and such disclosure shall be entered upon the minutes of the governing body, and any such official, commissioner, or employee shall not participate in any action by the municipality (or board or commission thereof), housing authority, or urban renewal agency affecting such property. Any disclosure required to be made by this section to the local governing body shall concurrently be made to a housing authority or urban renewal agency which has been vested with urban renewal powers by the municipality pursuant to the provisions of §§ 11-8-38 and 11-8-39. Any violation of the provisions of this section shall constitute misconduct in office.
SDCL 11-8-53