In any Redevelopment Project adopted or substantially amended after May 1, 1983, neither the City nor Redevelopment Agency shall by eminent domain proceedings acquire property within a Redevelopment Project for the purpose of re-sale for private redevelopment without first submitting to and receiving the approval of the electorate.

This section shall not prohibit either the City or Redevelopment Agency from acquiring property by eminent domain proceedings for any other public purpose nor shall it prohibit either the City or Agency from acquiring property within a Redevelopment Project from a willing seller for any purpose.

The proposal to acquire property within a Redevelopment Project for re-sale to private redevelopers shall be placed before the electorate at either a general election or special election called for that purpose.