Yall, Come on Down OUR PROPERTY. Located on South 1st Street, the Old South Austin Apartments embodies the soul of South Austin. Everything from the historic 78704, to the property sign (designed by Road House Relics owner and Austin local Todd Sanders) is intended to maintain the soul of South Austin. We have roots in Austin that lay down the foundation of our community. Stay Awhile RESIDENT INFORMATION. Residents are the heart of Old South Austin individuals coming together to build a community. This vibrant connection we have, inspires us in creating an environment where residents can have all the needs at their fingertips. From requests and payments to updates and easy-access notifications, our resident portal has it all. Join Our Community Old South Austin is located in the middle of the best part of Austin and holds true to its roots. Apply now and call Old South Austin home tomorrow.