The council voted 5-to-2 to approve the proposed high-rise, following the unanimous approval of the local planning commission last month. The 250,000-sf tower would rise inside Koll's master-planned project at MacArthur Boulevard and Jamboree Road and be built by a group led by Newport Beach resident and investor Tim Strader Sr.

Last fall, 63% of voters in the city approved the so-called "Greenlight Initiative" that generally requires a public vote on projects that would exceed allowances in the general plan by 40,000 sf, or would involve more than 100 car trips or homes that the general plan allows. The initiative was incorporated into the city charter earlier this year.

Because of its size, the office tower proposed by Strader falls under the new provision and thus must be approved by a majority of local voters. Strader's group has promised to pay the city nearly $2.1 million to make traffic improvements in the area, plus another $112,500 to help fund a study of traffic around John Wayne Airport.