Countywide Building Outlines (2014)

** Download as File Geodatabase The Countywide building outline dataset contains building outlines (over 3,000,000) for all buildings in Los Angeles County, including building height, building area, and the parcel number (also known as building footprints). This data was captured from stereo imagery as part of the LARIAC2 Project (2008 acquisition) and was updated as part of the LARIAC4 (2014) imagery acquisition. There are a number of sources. All buildings were updated to include changes between 2008 and 2014. City of Palmdale - building outlines from the LARIAC (2006) imagery derived from orthogonal imagery. City of Pasadena - building outlines from earlier imagery, updated with LARIAC2 (2008) imagery in 2008 City of Glendale - building outlines from earlier imagery, updated with LARIAC2 (2008) imagery in 2008 City of Los Angeles - building outlines from LARIAC2 (2008), stereo generated, for all buildings > 64 square feet The rest of the County - building outlines from LARIAC2 (2008), stereo generated, for all buildings > 400 square feet Most of the buildings in this dataset were generated using stereo imagery. This means that the person capturing the buildings actually saw them in 3-D, and therefore was able to more accurately capture the location of the roof line, since this method eliminated the impacts of building lean (where the height of the building impacts its apparent location). Basically this is the most accurate method for capturing building outlines. In many cases the location is more accurate than our aerial photography and parcel boundaries. This file contains a file geodatabase which has two feature classes: LARIAC4_BUILDINGS_2014 – this is the current set of buildings as of 2014 LARIAC2_BUILDINGS_DELETED_2014 – these are the buildings from LARIAC2 that have been modified or deleted. These can be for change analysis and detection.