In Chicago, the public way means the street, alley, sidewalk and parkway. Using it for scaffolding, a dumpster or stored materials needs a separate permit from the Chicago Department of Transportation (CDOT), on top of any building permit. Structures in the public way generally need a public way use permit from the Department of Business Affairs and Consumer Protection (BACP), and trees or plants need a forestry permit. Ask your contractor who is pulling each one.
A building permit covers the work on your building. It does not cover the sidewalk in front of it. If your project puts scaffolding, a dumpster or a pile of brick on the sidewalk, alley, street or parkway, you need a second permit, from a second City office. Owners miss this one all the time, because the contractor says "permit's handled" and means only the building permit.
What is the public way in Chicago?
The City uses the term for the street, alley, sidewalk and parkway (City of Chicago). The parkway is the strip between the sidewalk and the curb. On a typical Chicago two-flat, the front sidewalk and parkway belong to the public way, and so does the alley behind the garage.
The line matters because it decides which office you answer to. Inside your lot lines, the Department of Buildings runs the permit. Outside them, the City's rules for the public way apply.
What needs a public way permit?
Three families of permits come up around construction (City of Chicago):
| What you are doing | Which permit |
|---|---|
| Using the street, alley, sidewalk or parkway for construction, including scaffolding, dumpsters or material storage | A separate permit from CDOT |
| Putting a structure in the public way | Generally a public way use permit from BACP |
| Planting or removing trees or plants in the public way | A forestry permit from Streets and Sanitation |
The first row is the one most jobs hit. CDOT's own wording is that any work in the public way, or use of it for scaffolding, dumpsters or materials, needs a CDOT permit separate from the Department of Buildings permit (City of Chicago).
Do you need a permit for scaffolding?
Think of it as two questions. The first is the permit for the work the scaffold serves, say tuckpointing a front elevation. The Department of Buildings lists Scaffolding among its Express Permit worktypes (City of Chicago), so ask your contractor which scaffolding permits your job needs on the building side.
The second question is the ground the scaffold stands on. If the legs, the planks or the sidewalk shed sit on the public way, CDOT has its say (City of Chicago). On a building that sits at the lot line, front work usually puts something on the public way. Our tuckpointing permit article covers how this looks on a typical front wall.
Do you need a permit for a dumpster?
If the dumpster sits on private property, the public way permit is not the issue. If it sits on the street, alley or parkway, it uses the public way and needs a CDOT permit (City of Chicago). The same goes for a pile of brick, lumber or debris staged on the sidewalk. Our dumpster permit article answers that question on its own.
What about alley work and sidewalk work?
Alleys are public way. Staging materials in the alley, blocking it, or working from it counts as using it. Sidewalk work is a separate case. Reconstructing a sidewalk is work in the public way, and CDOT has its own programs for that, which our sidewalk repair article covers rather than this one.
Note one thing that confuses people. The mason license exemption for brick or concrete sidewalks does not mean sidewalk work needs no permit (City of Chicago). The license is one rule. The public way permit is another. The City says a mason license is not required for brick or concrete sidewalks or concrete paving, and in the same breath, that any work in the public way needs a CDOT permit (City of Chicago).
Who applies for the public way permit?
The City's pages we reviewed do not tell an owner who must apply. So treat it as a question for the contract. Before work starts, ask your contractor in writing:
- Which public way permits does this job need: scaffolding, dumpster, material storage, or all three?
- Who applies for each one, you or me?
- What are the permit numbers, and where will the permits be posted?
- How long are they good for, and who renews them if the job runs long?
- What do you do if the permit hasn't arrived by the day the scaffold is booked?
We deliberately do not describe the CDOT application steps, fees or portal here. Those change, and we found no current CDOT page we could rely on for the details. Check with CDOT for how to apply.
What if it is an emergency?
Some emergency work that normally needs a permit may be done first to prevent imminent harm. The City requires a permit application the next business day, and emergency scaffolding needs an application within three business days (City of Chicago). Do not read that as a loophole for planned work. It is for imminent harm, and the clock starts immediately. Our emergency repair article goes through it.
Other City rules that follow you to the sidewalk
Even where a permit exemption applies, some rules do not go away. Dust control for masonry grinding, lead-safe work practices and asbestos notification still apply, and a possible CDPH air quality permit can be needed for masonry grinding (City of Chicago). Landmark and proposed-landmark properties may not qualify for the usual exemptions either (City of Chicago). Ask before you assume.
The usual miss is not a refusal to get a permit. It is a contractor who pulls the building permit and assumes the scaffold or the dumpster is somebody else's job. The first sign is a neighbor's call to 311 about a dumpster in the parkway or a scaffold over the sidewalk. Ask for every permit before the equipment arrives, not after.
We did not find a published penalty schedule for public way violations that we can quote, so we will not guess one. What we can say is that a scaffold, dumpster or material pile on the sidewalk or alley without the permit is easy for a neighbor or inspector to spot, and it can hold up the job while you sort it out. Check with CDOT about current enforcement and penalties.
Where does Akats fit?
Permits for the building and the public way are part of how we run a job. Tell us what you need on the sidewalk or alley, and our expediting team tells you which permits apply and who files them. Then you have the permit numbers before the first truck arrives.
For the whole permit picture, see the Chicago building permits guide.
Common questions
The City uses it for the street, alley, sidewalk and parkway. Using any of them for construction, including scaffolding, dumpsters and material storage, needs a permit from the Chicago Department of Transportation, separate from your building permit.
Yes, if it sits on the public way, which includes the alley, street, sidewalk and parkway. The City says dumpster storage in the public way needs a separate CDOT permit. A dumpster on your own lot is a different situation. Confirm details with CDOT.
Not the public way part. Scaffolding or materials on the sidewalk, street, alley or parkway need a separate CDOT permit. Ask your contractor which permits your scaffold needs and who applies for each one.
No. CDOT handles work in the public way and use of it for scaffolding, dumpsters and materials. BACP generally issues the public way use permit for structures in the public way. Trees and plants need a forestry permit from Streets and Sanitation.
Sources
- City of Chicago: Guide to Building Permits: What Types of Work Do Not Require a Building Permit?
- City of Chicago: Guide to Building Permits: Application Instructions
- City of Chicago: Guide to Building Permits: Mason Contractor License FAQ
Facts last checked: October 7, 2026.
This article explains general rules and common situations in Chicago. It is not legal advice, and City rules change. For a specific property, check with the Chicago Department of Buildings or a licensed professional.