Water and Sewer Connection Permit in Chicago, Illinois (2026)
Without a Water and Sewer Connection Permit from the City of Chicago Department of Water Management, your contractor cannot legally tie your restaurant's water supply and sewage lines into the city's infrastructure—delaying your opening indefinitely and potentially voiding your builder's risk insurance. Also called a water service connection permit or sewer connection authorization, this permit certifies that your building meets Chicago's plumbing and public works standards. Key facts:
- 37 fields — ApronPrep auto-fills 31
- $0 government filing fees for the permit itself
- Timeline varies depending on inspection scheduling and any required utility upgrades
Analyzed from Water and Sewer Connection Permit
84% from one compliance interview
Manual entry or document upload required
Why You Need a Water and Sewer Connection Permit
The Water and Sewer Connection Permit is required under the Chicago Municipal Code, which governs all connections to the city's water distribution and sewer collection systems. Specifically, Chicago Municipal Code Chapter 11-12 (Water Supply and Distribution) and Chapter 11-20 (Sewers and Drainage) require any new, modified, or reactivated utility connection to be reviewed and approved by the Chicago Department of Water Management (DWM) before any physical work begins. For food service establishments, this requirement extends to grease discharge compliance under the city's pretreatment program, which is administered in coordination with the Metropolitan Water Reclamation District of Greater Chicago (MWRD). No contractor may tap into a city water main or connect to a public sewer line without a permit on file — meaning your restaurant cannot receive a Certificate of Occupancy or pass a final building inspection without documented utility connection approval.
Operating without a valid Water and Sewer Connection Permit exposes your restaurant to serious regulatory and financial consequences. The Chicago DWM has authority to physically disconnect service to non-compliant properties, which would force an immediate closure of your operation. Beyond service interruption, the consequences include:
- Daily fines for unpermitted connections, assessed per violation per day under Chicago Municipal Code § 11-4-150 — contact the DWM to confirm current fine schedules
- Mandatory remediation costs — the city can require you to excavate and disconnect unauthorized tap work at your own expense
- Permit revocation — if your Food Service Establishment Permit was issued on the assumption of code-compliant utilities, a failed connection inspection can trigger review of that license
- Insurance and lease implications — most commercial leases and general liability policies contain utility compliance clauses; an unpermitted connection can void coverage or constitute a lease default
- Lender holds — SBA and conventional lenders financing buildouts require utility permits to be cleared before disbursing construction draws
Not legal advice — verify current requirements with the Chicago Department of Water Management.
Legal code: Local sewer use regulations, water connection requirements, road/sidewalk ordinances, grease discharge limits
Recent update: As of 2025, the Chicago Department of Water Management updated its online permitting portal to accept digital submissions for standard water service connection applications, reducing the need for in-person filing at the DWM office at 333 S. State Street — contact DWM directly to confirm whether your specific connection type qualifies for the electronic submission pathway.
Who Needs a Water and Sewer Connection Permit?
| Type | Required | Notes |
|---|---|---|
| Restaurant (Full-Service) | Required | Full-service restaurants require a Water and Sewer Connection Permit from the City of Chicago Department of Water Management whenever they establish or modify a water service connection or sewer tap, as mandated under Chicago Municipal Code § 11-12-010, because high-volume food preparation and dishwashing create significant water demand and wastewater discharge that must be metered and inspected. |
| Bar / Nightclub | Required | Bars and nightclubs must obtain a Water and Sewer Connection Permit under Chicago Municipal Code § 11-12-010 because they require dedicated water service for sinks, ice machines, and sanitation equipment, and any new tap or modification to an existing connection triggers the permit requirement regardless of alcohol license status. |
| Food Truck | Not Required | Food trucks operating from a self-contained mobile unit are exempt from the Water and Sewer Connection Permit because they do not establish a permanent connection to Chicago's municipal water main or sewer system — instead, they must fill potable water tanks and dispose of wastewater at a licensed commissary that holds its own connection permits. |
| Coffee Shop / Café | Required | Coffee shops and cafés require a Water and Sewer Connection Permit under Chicago Municipal Code § 11-12-010 because espresso machines, batch brewers, and required three-compartment sinks draw directly from the municipal water main and discharge to the sewer, and any new service line or tap modification must be inspected by the Department of Water Management. |
See which restaurant types need this requirement — and which don't.
See Full Requirements →Field-by-Field Guide (37 Fields)
31 of 37 auto-filledProperty Address
addressEnter the full street address of the Chicago property where the water and sewer connection will be installed, including street number, street name, unit or suite number (if applicable), and ZIP code — this must match the address on file with the Cook County Assessor's Office.
COMMON MISTAKE: Entering a mailing address or corporate headquarters address instead of the physical restaurant location causes an immediate mismatch with city parcel records and triggers rejection.
Tax Parcel Number
textEnter the 14-digit Cook County Permanent Index Number (PIN) assigned to the parcel — formatted as XX-XX-XXX-XXX-XXXX — which the Chicago Department of Water Management uses to verify ownership records and locate the existing service lateral on the city's GIS system.
COMMON MISTAKE: Entering a truncated or incorrectly hyphenated PIN (e.g., omitting the leading zeros or using the wrong digit grouping) causes a parcel lookup failure and results in automatic rejection.
Property Ownership Status
selectSelect whether the applicant is the property owner, a tenant with written landlord authorization, or a licensed contractor acting on behalf of the owner — this selection determines which supporting documents the Chicago Department of Water Management will require alongside the permit application.
COMMON MISTAKE: Selecting 'Owner' when the applicant is actually a tenant or operator will cause a document mismatch when the city cross-references deed records, leading to a hold on the application.
Landlord Authorization Letter
documentUpload a signed letter from the property owner explicitly authorizing the applicant (tenant or contractor) to apply for and receive the water and sewer connection permit — the letter must include the property address, the owner's printed name, signature, and date.
COMMON MISTAKE: Submitting an undated letter or a letter that does not specifically name the permit type being authorized is a common reason the Chicago Department of Water Management places applications on hold pending additional documentation.
Business Legal Name
textEnter the exact legal name of the business entity as registered with the Illinois Secretary of State — for LLCs this is the name on the Articles of Organization, and for sole proprietors this is the name on the DBA filing — do not use a shortened trade name or 'doing business as' name in this field.
COMMON MISTAKE: Using a trade name (e.g., 'Joe's Diner') instead of the registered legal entity name (e.g., 'JD Restaurant Group LLC') creates a mismatch with the city's business license database and flags the application for manual review.
Type of Business
textEnter a brief, specific description of the business use that will drive water and sewer demand — for example, 'full-service restaurant with commercial kitchen,' 'food truck commissary,' or 'bakery with dishwashing station' — the Department of Water Management uses this to classify your connection size and assign the appropriate meter tier.
COMMON MISTAKE: Entering a vague description like 'food service' or 'retail' without specifying kitchen or dishwashing use can result in an undersized meter assignment, which will require a costly amendment later.
Applicant Name
textEnter the full legal name of the individual submitting the application — this must be a person, not a business entity name — and this individual must be authorized to act on behalf of the business (e.g., owner, officer, or licensed plumber of record).
COMMON MISTAKE: Entering the business name in the applicant name field instead of an individual's name causes a processing error, as the city system requires a human signatory for permit accountability.
Applicant Title
textEnter the applicant's official title within the business or contracting relationship — such as 'Owner,' 'Managing Member,' 'President,' or 'Licensed Plumber (City of Chicago License #XXXXX)' — this establishes the legal authority of the person signing the permit application.
COMMON MISTAKE: Leaving this field blank or entering an informal title like 'Manager' without clarifying ownership or licensure status can prompt the reviewer to request additional proof of signing authority, adding time to your approval.
Applicant Phone
phoneEnter a direct phone number for the applicant — formatted as (XXX) XXX-XXXX — where the Department of Water Management's permit desk can reach the responsible party if inspectors need to schedule a site visit or if the application requires clarification.
COMMON MISTAKE: Providing a general business line or answering service number that is not monitored by the applicant can result in missed callbacks from the city, causing avoidable delays in permit issuance.
Applicant Email
emailEnter a valid email address for the applicant where the Chicago Department of Water Management will send permit status updates, deficiency notices, and the final permit document — ensure this inbox is actively monitored, as deficiency response deadlines are typically communicated via email.
COMMON MISTAKE: Using an email address that auto-routes to a spam folder or a shared generic inbox (e.g., info@restaurantname.com) where the applicant may not see time-sensitive deficiency notices is a common cause of missed deadlines and application expiration.
ApronPrep auto-fills 31 of 37 fields from a single compliance interview — no re-typing, no guessing what the government expects.
Top 5 Water and Sewer Connection Permit Mistakes
1. Submitting Incorrect or Mismatched Property PIN
Based on ApronPrep's analysis of Water and Sewer Connection Permit applications in Chicago, the single most common rejection trigger is entering a Property Index Number (PIN) that doesn't match the Cook County Assessor's records for the exact parcel being connected. For example, entering a neighboring parcel's PIN — even one digit off — causes the Chicago Department of Water Management to flag the application as unverifiable, adding 2–3 weeks to your timeline while corrections are processed. Verify your PIN directly on the Cook County Assessor's website (cookcountyassessor.com) before completing any fields.
2. Failing to Submit a Licensed Plumber's Signed Certification
Chicago Municipal Code § 11-12 requires all Water and Sewer Connection Permit applications to be filed by or co-signed by a City of Chicago-licensed plumber — submitting an application under a general contractor's license alone results in automatic rejection. A common example: a restaurant owner submits the form with only their GC's signature, not realizing the plumber must hold an active Chicago plumbing license on file with the Department of Buildings. Confirm your plumber's license status at chicago.gov/city/en/depts/bldgs before filing to avoid resubmission delays of 1–2 weeks.
3. Omitting the Required Site Plan or Submitting an Outdated Drawing
Applications must include a current site plan showing the proposed connection point, pipe size, and distance from the water main — reviewers reject plans that are undated, lack a north arrow, or reflect a prior building configuration. For example, submitting a site plan from a previous tenant's build-out that doesn't reflect your current kitchen layout or grease interceptor location is a frequent cause of completeness holds. Have your licensed plumber or engineer date and sign the site plan within 90 days of submission to meet Chicago Department of Water Management standards.
Skip the Paperwork on Your Water and Sewer Connection Permit
ApronPrep auto-fills 31 of 37 fields from one compliance interview.
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Water and Sewer Connection Permit by City in Illinois
| City | Fee Range | Timeline |
|---|---|---|
| Aurora | Contact authority for current fees; fees typically vary based on water/sewer line length, connection type, and any road/sidewalk restoration required | Review timeframes vary; consult Review Timeframes PDF for specific processing windows. Typical process: 2-4 weeks for initial review, plus scheduling for inspections |
| Chicago | ||
| Rockford |
Timeline: Varies
1. Gather Property and Building Documents
Collect your restaurant's legal property description, current plumbing layout or as-built drawings, and proof of ownership or lease. You'll also need your business license number and EIN. The Chicago Department of Water Management requires these to determine whether your property already has sewer/water service or requires new connections. Properties in older Chicago neighborhoods often have incomplete records — contact the city's 311 line or visit the Department of Water Management website to confirm your current service status before submitting.
2. Request a Site Assessment from the City (if required)
If your property doesn't have documented water or sewer service, submit a preliminary inquiry to the Chicago Department of Water Management, Bureau of Customer Services. Provide your address and describe your intended use (food service establishment). The city will send an inspector to verify existing infrastructure and identify whether new connections are feasible. This step is NOT required if your building already has active accounts, but skipping it when needed causes 3–4 week delays later.
3. Complete and Submit the Water and Sewer Connection Permit Application
Fill out the Chicago Department of Water Management Connection Permit form (available on the city's water department portal or by mail). Include your property legal description, plumbing layout, contractor information (if applicable), and proof of payment for the application fee. Submit the completed packet to the Department of Water Management, Bureau of Customer Services, either in person at their office or by mail to the address listed on the form. Online submission is not currently available — in-person or mail delivery is required.
Where to Apply
Applications are handled by your local department of public works (dpw) in each city. Select your city below for authority details, fees, and processing timeline.
Other Requirements You'll Need
This is one of 13 requirements for opening a restaurant in Illinois.
ADA Compliance Self-Certification
federal
Alarm System Permit/Registration
local
Alcohol Server Training Certification (BASSET)
state
Annual Report Filing
state
See all co-required forms and how they connect to your compliance dossier.
See All RequirementsTimeline varies depending on whether your application is complete and the complexity of your site conditions, per the Chicago Department of Water Management's application guide. Most applicants can expect processing to take several weeks once submitted, though incomplete applications or requests for additional site surveys may extend this timeline significantly. Contact the Chicago Department of Water Management directly to confirm current processing times for your specific project, as timelines can vary by season and department workload.
Chicago does not charge a government filing fee for the water and sewer connection permit application itself. However, you may incur costs for required inspections, site surveys, engineering plans, and backflow prevention device certification—all of which are separate from the permit application. Contact the Chicago Department of Water Management or review their fee schedule to confirm whether any ancillary charges apply to your specific connection project. Not legal advice—verify all costs directly with the department.
No—water and sewer connection permits are site-specific and cannot be transferred to a different location. If you move your restaurant to a new address, you must submit a new water and sewer connection permit application for that property. You may also need to obtain a new Building Permit and Certificate of Occupancy for your new location, as these permits are location-dependent.
Water and sewer connection permits do not require periodic renewal once approved—the permit remains valid for the life of the connection at that address, per Chicago Department of Water Management policy. However, if you modify your connection, disconnect and reconnect, or change your water/sewer usage classification, you may need to file an amendment or new application. Contact the Chicago Department of Water Management to confirm whether changes to your operation trigger a new permit requirement.
The Chicago Department of Water Management will inspect your site to verify that proposed connections comply with city code, plumbing standards, and water/sewer main locations. Inspectors check pipe sizing, connection points, backflow prevention devices (often required for food service operations—see Backflow Prevention Device Certification), and grading to ensure proper drainage. If deficiencies are found, the department will issue a notice requiring corrections before final approval.
About This Data
This guide is generated from ApronPrep's compliance dossier system, which uses 53 parallel AI authority experts to discover requirements, then downloads actual forms and generates field-level intelligence for each one.
For Illinois specifically, we have analyzed compliance dossiers for 3 cities (Aurora, Chicago, Rockford), generating Rich FILs (Form Intelligence Layers) with 37 form fields analyzed for this requirement. Fee data is sourced from actual county department fee schedules, not estimates.
Our data is verified against official government sources and updated when regulatory changes are detected. If you find an error, please report it — accuracy is our core commitment.
Sources
- Local sewer use regulations, water connection requirements, road/sidewalk ordinances, grease discharge limits
- Aurora — Department of Public Works (DPW)
- Chicago — Department of Public Works (DPW)
- Rockford — Department of Public Works (DPW)
This Form Is One of 60+ Requirements.
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