Tegel the end of 1948. Tegel is chiefly known for being the location of Berlin-Tegel "Otto Lilienthal", Berlin's main airport. It also houses the Tegel Penitentiary, Germany's largest prison with about 1,700 inmates as of 2007, known from Alfred Döblin's 1929 novel Berlin Alexanderplatz. One of Berlin's largest shopping malls "Borsighallen" is located in the former locomotive manufacturing halls of the "Borsigwerke". There is also the "Villa Borsig" at the shore of Lake Tegel, the former residence of the Borsig family. Today it is a school for future diplomats. Beside this Tegel is an extensive residential district with some industry. With
Lake City Gateway Airport the current tenant, which performs depot level maintenance on Boeing and Airbus commercial aircraft. In 2011, the airport completed construction of a new 6,000 square foot terminal facility to support corporate business jet and charter airliner traffic. This also coincided with a name change in which the airfield was renamed Lake City Gateway Airport. Lake City Gateway Airport covers an area of 1,250 acres (506 ha) at an elevation of 201 feet (61 m) above mean sea level. It has two asphalt paved runways: 10/28 is 8,003 by 150 feet (2,439 x 46 m) and 5/23 is 4,000 by 75