The Park at Garrison Oaks The Park at Garrison Oaks is an exclusive enclave of 13 homes in a fabulous Roswell location. Homes start at $600,000 and go as high as $1M+. The Park at Garrison Oaks residents attend the following top rated East Cobb schools; Garrison Hill Elementary School, Mabry Middle School, and Lassiter High School. Feel free to contact us if you have any detailed questions about the The Park at Garrison Oaks homes or any of the surrounding Roswell neighborhoods. We would love to be your The Park at Garrison Oaks listing agent. Click here to sell your home in The Park at Garrison Oaks. Click here for current The Park at Garrison Oaks homes for sale. 09/06/2009