Do You Need a Permit for a Porta Potty?
Most backyard and job-site units need no permit. Public events, parks and streets are different. Here is how to tell.
By Kingston, owner of Kingston Portable Toilets Rental. Reviewed October 13, 2026.
Does a porta potty on private property need a permit?
A porta potty on your own private property in St. Charles County or St. Louis County usually needs no permit. Remodels, new builds and backyard parties place units on driveways and yards without city approval. HOA covenants are the more common limit, so check yours for time and visibility rules.
When does a porta potty need a permit?
A porta potty usually needs a permit when it is part of a public special event, placed in a city park, or set on a street, sidewalk or other public right-of-way. In those cases the city's special-event or right-of-way permit covers it, and the application often asks for restroom counts and locations.
- City of St. Charles: special event application process
- City of St. Louis: requirements for special event permits
- St. Charles County (unincorporated): special event application
What do St. Louis event rules require for restrooms?
The City of St. Louis requires event toilets to be serviced at least once every 24 hours, secured against tipping, placed where a service vehicle can reach them, and accessible to adults, children and people with disabilities. Separate toilets are required for medical staff and food handlers.
Quick answers
Does St. Louis County require a health permit for event toilets?
Some St. Louis County city applications, such as Kirkwood's, ask about a county health department special event sanitation permit. Ask your city clerk.
Can I put a porta potty on the street in front of my house?
Not without permission. Street placement is public right-of-way, which usually needs a city permit. Use your driveway instead.
Will you help with the permit paperwork?
We provide unit counts, placement and a service schedule in writing for your application.
Get an itemized quote
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- One price covering the unit, delivery, pickup and any servicing
- No fuel surcharge added after the quote
- Free changes or cancellation up to 24 hours before delivery