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Guide

Permits for Portable Restrooms at a Detroit Event

How portable restrooms fit into a City of Detroit special event application: sign-off, the site plan, park permits and the 2020 intake form line.

Illustration for the guide "Permits for Portable Restrooms at a Detroit Event" (Detroit, MI)
Short answer

Special events in the City of Detroit go through a Special Events Application that needs department sign-off and City Council approval. Portable restrooms are part of what that process asks about, so their number and placement belong in the plan from the first draft, not added after approval.

Key takeaways

  • The City of Detroit’s Special Events Application needs department sign-off and City Council approval, according to the city’s November 2024 guide.
  • The 2019 application asked for a portable-toilet agreement and a site plan that shows where the restrooms will stand.
  • Park permits for larger events need a site plan where toilets are part of the event.
  • A 2020 intake form gives one restroom per 100 persons for food-vendor events. Its scope is unclear, so confirm it with the city.
  • Events in Hamtramck, Dearborn and the suburbs fall under their own municipalities, so the City of Detroit rules here do not carry across the line.
  • A permit does not replace the state septage licensing that applies to the truck which services the units.

Which permit route covers an event in Detroit?

Special events in the City of Detroit go through a Special Events Application that needs department sign-off and City Council approval. The restroom plan is reviewed as part of that application, so it has to be ready before the file is submitted.

The city’s November 2024 application guide describes the process: the applicant submits the Special Events Application, the relevant departments sign it off, and City Council approves the event. Each department looks at the part of the event it manages, and the restroom plan is one of the things that appears in the file.

Because approval comes at the end of that chain, an event that adds units late is asking for a change to an approved plan. Build the restroom plan into the first draft, with the number of units, the placement and the servicing schedule, so the file is complete when it is submitted.

The applicant is normally the event organizer, not the company that supplies the units. The supplier can help draft the site plan, but the organizer carries the application and should keep a copy of everything that is sent to the city.

What does the restroom part of the application ask for?

The older 2019 application asked for a portable-toilet agreement with the provider and a site plan showing where the portable restrooms would stand. Whether the current form asks the same questions is not confirmed here, so check the version the city sends you.

A site plan is the document that makes the rest of the application make sense. It shows where the units stand in relation to food vendors, stages, entries, exits and the accessible route, so an official can see the layout at a glance rather than reading a description.

The agreement with the provider is the second piece. It records who supplies the units, who services them and how the waste is handled. The waste handling is where the state rules apply, so the agreement should name the truck and the hauler the provider uses. The waste rules guide explains what to check.

Keep the plan and the agreement consistent with each other. If the plan shows twelve units and the agreement names ten, the file will raise a question that delays approval.

Permit steps as this guide can source them
StepWhat the source says
Special Events ApplicationDepartment sign-off and City Council approval (city guide, November 2024)
Site planShows portable restroom placement (2019 application; park permits for larger events)
Portable-toilet agreementNamed in the 2019 application; confirm it is still required
Intake line for food-vendor eventsOne restroom per 100 persons (2020 form); scope unclear

What about parks and smaller gatherings?

Park permits need a site plan for larger events that include toilets. Smaller gatherings may not need a plan of the same detail, but the park office decides, so ask before assuming a small event is exempt.

A park is not a street, and the permit questions differ. A site plan showing the restrooms is the thing the park office looks for when an event includes toilets, and it is the same kind of drawing the Special Events Application asks for, drawn to the park’s own layout.

For a smaller gathering, such as a block party or a community picnic, ask the office that would issue the permit whether a plan is needed and at what size. The park and community event restrooms service covers the units for that kind of event.

A street closure can be a separate question from the restroom plan. Ask whether the closure itself needs a permit before the restroom count is drawn, because the placement depends on where people will be standing once the street is closed.

How does the 2020 intake form fit in?

A 2020 temporary event intake form sets one restroom per 100 persons for food-vendor events. Its scope is unclear from the form as found, so use it as a question for the city about whether it applies to your event.

The form is a useful signal that the city has thought about restroom counts for food-vendor events, but it is not a complete rule. It does not say how a mixed event with food, music and a parade should be counted, and it does not say whether the figure applies to every food stall or only to a defined service area.

Put the question in writing to the office that handles the event. Ask which intake form version applies, whether the ratio is a minimum or a target, and how staff and vendor use is counted. A written answer is worth more than a count copied from a form that may not match the event.

Until the answer is in hand, plan from the event’s own peak estimate and show the working on the site plan. The event count guide sets out the inputs.

What about events outside the city limits?

Hamtramck, Dearborn and the suburbs are separate municipalities with their own event offices. The City of Detroit rules in this guide do not carry across the line, and each event needs its own permit route.

Several large events in the region sit on a border or draw crowds from several cities. The permit belongs to the place where the event happens, so check the boundary of the site before assuming the City of Detroit application covers it.

The waste side also has a county dimension. Oakland County’s septage receiving page says haulers must be licensed under GLWA and EGLE to use its unloading sites. That is a county rule, and this guide does not extend it to Wayne or Macomb counties.

Where the event is in another municipality, ask that municipality’s office for its own requirements, and ask the provider which disposal site it uses for units that come from that area.

Frequently asked questions

How long before the event should I apply?

This guide cannot give a number of days, because none is in the sources it draws on. Ask the city’s special events office for the lead time on the current form and build that date into your plan.

Who signs off on the restroom part of the application?

The application passes through the departments the city lists and then goes to City Council. Which department reviews the restroom plan for your event is a question for the office handling your file.

Can my restroom provider handle the paperwork?

The provider can help draft a site plan, but the event organizer is normally the applicant. Put the restroom placement on the plan and confirm that the agreement names the party the city expects to sign it.

Does a small block party need a permit for a unit?

This guide cannot say which small gatherings need an event permit. Ask the city office whether the gathering needs one, and separately whether a street closure needs its own permit.

Sources

  1. City of Detroit: Special Events Application guide (November 2024)
  2. Oakland County: septage receiving

This guide is general information for Wayne County homeowners, not a substitute for an on-site inspection. Prices are estimates. See our disclaimer.

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