Hello - you'll find information and links for the reference designs in the SOM User Guide.
I was able to build it following instructions from these threads: http://zedboard.org/content/how-re-create-designs-picozed-sdr-scratch-boot-sd-card and http://zedboard.org/content/how-do-i-rebuild-reference-design-hdl-project .
For Vivado 2016.2, you need the hdl_2016_r2 release from: https://github.com/analogdevicesinc/hdl/releases . And the project needs to be initially built by make, so if you're on Windows, you'll need to install Cygwin and make.
I am working using the PicozedSDR Development Board ( AES-PZSDRCC-FMC-G) with Zynq7z035 device. I am using VIVADO_2016.2 for my development purpose. I donot find any reference design to start my work for this development board. Can someone provide me with an example design for the above mentioned board that works on VIVADO_2016.2 .