Construction has started on the $21 million Park at Van Nuys, which will consolidate piston aircraft and related businesses into a single location at Van Nuys Airport. A groundbreaking took place Monday on the 30-acre development at the northwest corner of the airfield. It will include a terminal, maintenance services, flight schools, a restaurant, a self-service fuel station and aircraft wash rack. The first, 10-acre phase of the project will relocate 70 existing single-plane hangars and provide 24 new hangars in two buildings to be constructed. Completion is scheduled for spring 2015. The full build-out, including the terminal and restaurant, is expected to be completed by the end of 2018. “Van Nuys Airport is committed to working with all our aviation tenants to deliver successful projects,” said Steve Martin, chief operating officer, Los Angeles World Airports, the owner of Van Nuys Airport, in a prepared statement.