Construction on the defense firm’s facility at Douglas Park will begin by midyear.

Anduril Industries, one of the leading defense companies in Southern California, will expand in Long Beach with a new $1-billion complex near the city’s airport.

Anduril is developing new defense technologies that include drones, missiles, robotic submarines, and autonomous fighter jets.

The Long Beach operation will include offices for designer engineers and coders, along with lab space and prototype manufacturing facilities, the company said Thursday.

The new facility will be built at Douglas Park, an industrial park just north of Long Beach Airport with a history of aerospace manufacturing. Anduril has leased more than 1 million square feet of land from real estate developer Sares Regis Group, which will build the new campus.

Construction will begin by the middle of the year, Anduril co-founder Matt Grimm said, and the first building in the complex will open by the end of 2027.

The campus will span approximately 1.18 million square feet across six buildings, combining 750,000 square feet of office space with 435,000 square feet of industrial space dedicated to research and development.