GSA tenant agencies include most of the
entities that conduct the public's business: the U.S. courts, the
Social Security Administration, the Department of Health and Human
Services, the Internal Revenue Service, and many more.
The oldest buildings in GSA's inventory date back to 1810.They
include stately customhouses, post offices and office buildings
constructed of simple brick and stone. In fact, 8 percent of GSA's
historic buildings were constructed before 1900. Most are still in
use, meaning they are a bridge to the past as well as the future.
Some of the greatest structures were created between 1900 and
1941. These were years of incredible progress in technology, civic
planning and American emergence as a leader in Western popular
More than half the historic buildings in GSA's inventory were
constructed during the Great Depression. When President Truman
signed GSA into law in 1949 to bring federal procurement and
building management under one roof, a decision was made not to allow
progress to diminish the beauty of what already existed. Between
1960 and 1976, GSA undertook more than 700 projects across the
Historic buildings occupy about 25 percent of GSA's federally
GSA's historic preservation program supports the integrity and
reuse of historic buildings that the agency owns, leases and has the
opportunity to acquire. The agency is responsible for keeping them
functional, safe and efficient, all while being mindful that they
are links to our uniquely American heritage.