From the south using 75 Central:

North on 75
West on 635 LBJ
Exit Galleria/Dallas Parkway
Stay on access road
Right on Noel Road
Left into One Galleria Tower parking lot
Park in the Yellow parking garage, on the left

From the south using the Dallas North Tollway:

North on Tollway
Exit Galleria/Dallas Parkway
Go over 635 on the bridge
Turn right on Alpha
Turn right on Noel
Turn right into One Galleria Tower parking lot
Park in the Yellow parking garage, on the left

From the north using 75 Central:

South on 75
West on 635
Exit Galleria/Dallas Parkway
Stay on access road
Right on Noel Road
Left into One Galleria Tower parking lot
Park in the Yellow parking garage, on the left

From the north using the Dallas North Tollway:

South on the Tollway
Exit Alpha/Galleria
Left on Alpha
Turn right on Noel
Turn right into One Galleria Tower parking lot
Park in the Yellow parking garage, on the left

From the west:

East on 635
Exit Montford/Dallas Parkway
Veer right, up to bridge
Stay on access road
Left to go on bridge over 635
Turn right on Alpha
Turn right on Noel
Turn right into One Galleria Tower parking lot
Park in the Yellow parking garage, on the left

From the east:

West on 635
Exit Galleria/Dallas Parkway
Stay on access road
Right on Noel Road
Left into One Galleria Tower parking lot
Park in the Yellow parking garage, on the left