South Lamar, Austin, Texas is a neighborhood in south Austin, Texas, United States. South Lamar is bounded by Ben White Boulevard/TX-71 and Westgate to the south, South Lamar Boulevard and Barton Hills and Galindo to the east. Homes in South Austin have single family homes, apartment complexes, multi-family homes and condo complexes. Most of the multi-family residences are duplexes that were built in the 1980s.