Developers secured $398 million in construction permits to build the five largest projects in the Los Angeles. Sprawling multifamily projects in West Adams, Downtown Los Angeles and the San Fernando Valley largely dominated the top five. Here are the biggest construction permits, issued in May by the L.A. Department of Building and Safety. Only commercial and multifamily projects within city limits were considered. Permit valuation is based on the minimum construction requirements set by the Department of Building and does not reflect the total cost of the project.