Apple Infinite Loop campus

Apple purchased the campus from Motorola for a discounted $25 million after damage from the 1989 earthquake. Construction of the campus began in 1992 and was completed in 1993 by the Sobrato Development Company. Its area is . Prior to its construction, the land was occupied by the company Four-Phase Systems (later acquired by Motorola). The campus was originally used exclusively for research and development, with Apple's corporate headquarters remaining at Building 1 on 20525 Mariani Ave (also known as Mariani One). At that time, its buildings were referred to as R&D 1–6. With the return of Steve Jobs to Apple in 1997, the campus became the company's official headquarters, and its buildings were renamed "IL" instead of "R&D". Jobs also banned employees' pets from the building. On the night of August 12, 2008, a fire started on the second floor of the building Valley Green 6. The firefighters worked until morning to extinguish the fire. No injuries were reported, but the forty-year-old building suffered $2 million of fire damage. ==Location==

The Apple Campus is located on the southeast corner of Interstate 280 and De Anza Boulevard and occupies in six buildings spread over four floors. Each building is numbered with one digit on the private U-shaped street Infinite Loop, so named because of the programming concept of an infinite loop. The street, in conjunction with Mariani Avenue, actually does form a circuit (or cycle) that can circulate indefinitely. The main building has the address 1 Infinite Loop, Cupertino, California. Employees refer to these buildings as IL1 to IL6 for Infinite Loop 1–6. Beyond Infinite Loop, the whole Apple Campus occupies an additional thirty buildings scattered throughout the city. Some of these buildings are leased (with an average rental cost of $2.50 per square foot). The company controls more than for its activities in the city of Cupertino. This represents almost 40% of the of office space and facilities for research and development available in the city. The Apple Campus had an Apple Store, first opened in 1993—predating the modern Apple Store chain—and was, at the time, the only place in the world where Apple merchandise could be purchased, including T-shirts, mugs, and pens. It was the only part of the campus open to the public. The store was closed on January 20, 2024. ==References==