The Security Building is an 11-story high-rise building located at 510 South Spring Street within the Spring Street Financial District in Downtown Los Angeles, California. It has been converted to the residential Lofts at the Security Building.

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Security Building
Location within the Los Angeles metropolitan area Show map of the Los Angeles metropolitan area Security Building (Los Angeles) (California) Show map of California Security Building (Los Angeles) (the United States) Show map of the United States
Alternative names	Lofts at the Security Building
General information
Status	Completed
Type	Residential apartments
Location	510 South Spring Street Los Angeles, California
Coordinates	34.0469°N 118.2497°W / 34.0469; -118.2497
Completed	1906
Management	Simpson Property Group
Height
Roof	50.29 m (165.0 ft)
Technical details
Floor count	12
Design and construction
Architect(s)	John Parkinson and Bergstrom Killefer Flammang Architects
Security Building
U.S. Historic district Contributing property
Los Angeles Historic-Cultural Monument No. 741
Architectural style	Classical Revival and Chicago style
Part of	Spring Street Financial District (ID79000489)
LAHCM No.	741
Designated CP	1979
References
[1][2]

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It was the former headquarters office building of Security First National Bank, completed in 1906. The building was the tallest building in the city for four years when completed.

Landmark

The Security Building is a Los Angeles Historic-Cultural Monument, and is a Historic district contributing property to the Spring Street Financial District, listed on the National Register of Historic Places.^[2]

• Spring Street Financial District
• List of Los Angeles Historic-Cultural Monuments in Downtown Los Angeles
• National Register of Historic Places listings in Los Angeles, California