experiencing a transition from semi-rural and agricultural uses into a suburban development patterns. Multi-family residential units began to be developed in the 1960s. In 1991, residents of the western half of Sepulveda, west of the San Diego Freeway, voted to secede from the eastern section to form a new community named North Hills. The City of Los Angeles soon changed the name of remaining Sepulveda to North Hills also. The city then formed a new sub-neighborhood of "North Hills West" which begins west of the 405 freeway and goes to Bull Creek Wash/Balboa Blvd. and from Roscoe Blvd. to Devonshire St. The eastern section became the sub-neighborhood of North Hills East. North Hills East boundaries are east of the 405-San Diego Freeway, along the Pacoima Wash, South of Lassen, and North of Roscoe. In June 1999, a damaged airplane landed safely on Hayvenhurst Avenue on its way to Van Nuys Airport. As of 2020, about 242 (1.3%) of the approximately 17,977 occupied structures in North Hills were built in 1939 or earlier, 34.9% were built from 1940 to 1959, 3.4% from 1960 to 1979, 5.2% from 2000 to 2009, 0.9% from 2010 to 2013, and 1% from 2014 or later. Government Local government North Hills is governed locally by the City of Los Angeles and is represented in the Los Angeles City Council by the members elected for districts 6, 7 and 12; each district includes three different sections of the neighborhood. Neighborhood Councils Both North Hills East and North Hills West Neighborhood Councils work together to improve the overall quality of life in North Hills communities. North Hills West Neighborhood Council was certified in 2003. Their slogan is "Fostering Community," and its logo is of a green tree in the city. The 2012-2014 North Hills West Neighborhood Council was seated into office on September 20, 2012. A northwestern section became part of the Northridge East Neighborhood Council in 2013. North Hills East Neighborhood Council was certified in 2010. It has a growing, multicultural group of neighbors dedicated to service and community activism. In early 2014, North Hills East Neighborhood Council was approved as an Official Certifying Organization for the President's Volunteer Service Awards program, which is an initiative of the Corporation for National and Community Service, the same organization responsible for AmeriCorps and Senior Corps. This status as an Official Certifying Organization has enabled the North Hills East Neighborhood