You also need to consider rodent control.   Evidence of rat dung (pills) inside will get you shut down. So washable concrete floors, seal walls to floor & all small access openings, and bait boxes around the property is a must.  A few hungery cats wouldn’t hurt either.

Check your zoning requirements.   This may forbid the commissary (commercial) in a residential area.   

Previously on here, several people have looked into it and decided it was too expensive to meet all the Health Dept. Requirements.

you can do it here in Kansas. usual rules, no direct access to house. may need to be a little more than a shed though. 

you can do it here in Kansas. usual rules, no direct access to house. may need to be a little more than a shed though. 

you can do it here in Kansas. usual rules, no direct access to house. may need to be a little more than a shed though. 

A licensed and approved commissary may require NSF equipment and a grease trap for the sink system. It may also require an indoor wash and storage area for the cart. If so, that will require a floor drain. Propane tanks cannot be stored indoors, so one must provide a locked, outdoor cage for the tank(s). Get an approval in writing before  building out. A few of my Hot Dog University graduates have build out a commissary on their property and the cost of permits, equipment, and plumbing is expensive. 

CSD