Plan check.(Casden Co. seeking approval from city to add parking space to its mixed-use project)

After jousting with Westwood community groups over the Palazzo Westwood mixed-use project, billionaire developer Alan Casden is seeking some changes.

Casden Properties Inc. has filed plans with the city seeking permission to add more underground parking to the development. The extra parking is needed for Casden to change the project's 350 residential units into for-sale condominiums.

Howard Katz, Casden's vice president of development, said the company still intends to open the housing as luxury apartments, although those units are also being built to…