The land which covers Baseco today was once the location of a
dockyard of the National Shipyard and Steel Corporation (NASSCO). In 1966, during the administration of then-President
Ferdinand Marcos, NASSCO was acquired by the Romualdez family, the kin of the president's wife
Imelda Marcos, through the Bataan Shipping and Engineering Company or BASECO. In the late 1970s, the urban poor population were resettled by the Marcos administration to give space for a possible international seaport. Baseco was formally declared a barangay (Barangay 649, Zone 68) in the 1980s. Following the
People Power Revolution of 1986, the national government under Marcos' successor
Corazon Aquino sequestered the property and the urban poor population began to resettle the area. People settled in an area within Baseco which would later be designated as "Block 40". At least 39 other blocks would be established. By 1999, Baseco attained full access to electricity. On February 12, 2002, then-President
Gloria Macapagal Arroyo proclaimed Baseco as a residential site. ==Geography==