This a KiCad template for a Raspberry Pi Zero sized pHat ('partial' Hat). It is based on the Raspberry Pi B+ Hat template from Xess Corp. XESS Corp did all the hard work here.
Currently there is no definition for Raspberry Pi Zero Hats so the mechanical definition for the Raspberry Pi Zero itself was used instead.
Both a thru-hole and a surface mount connector are provided, along with a different PCB edge for each. Just keep the PCB edge and connector type that you're using for your design and delete the others.
The board outline looks like this:
This template has been used in a design successfully. See RPi-pHat-Thermocouple
Follow the instructions listed in the original Raspberry Pi B+ Hat template from XESS Corp.