Study assessments for the Marrus Lab are conducted in the Developmental and Behavioral Assessment Unit in Suite 2650 at 4444 Forest Park Ave., St. Louis, MO 63108 on Washington University’s medical campus. The entrance to the parking lot is on Newstead Avenue.

For families coming in for a study, a research team member will greet you in the lobby.

Parking Information

Parking Lot: you can park in any visitor spot EXCEPT specially marked spaces. Be sure to display your parking permit (which we will send to you) on the dashboard of the car.

If the parking lot is full: please feel free to park at a metered spot in the surrounding area or park in the Duncan Visitor Garage at 4456 Duncan Ave. We will reimburse you.

Once you have parked, please use the main visitor entrance on Duncan Avenue. One of our research team members will greet you in the lobby.

You can download the driving directions and parking information here.