Water and Sewer Connection Permit in Detroit, Michigan (2026)
You cannot legally connect your new restaurant's plumbing to the public system or open for business without a Water and Sewer Connection Permit from the Detroit Water and Sewerage Department (DWSD). This local requirement, also called a plumbing service tap permit, ensures your project meets municipal plumbing codes before any water flows or waste discharges. Most applicants complete this in under 15 minutes with ApronPrep, which auto-fills 21 of 25 fields.
Analyzed from Water and Sewer Connection Permit
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Why You Need a Water and Sewer Connection Permit
Your restaurant cannot open without a legally compliant connection to the city's water supply and sewer system. This requirement is enforced through several local ordinances. Water service connections fall under the Detroit Water and Sewerage Department's (DWSD) regulations, while sewer connections are governed by the City's sewer use ordinance, which addresses grease discharge limits for food service establishments. Additional requirements for excavations that impact public rights-of-way are stipulated by city road and sidewalk ordinances. Without documented approval from DWSD and associated city departments, your utility service cannot be legally activated.
Operating without the proper permit or violating its conditions triggers immediate enforcement. The consequences are severe and can derail your business opening or shut down an existing operation. Based on standard enforcement actions in Detroit, penalties include:
- Service disconnection: DWSD can terminate water and sewer service to your property, making occupancy and operation impossible.
- Daily fines: You can be cited for ordinance violations, incurring daily monetary penalties until the violation is corrected.
- Required remediation and permit revocation: If, for example, an unpermitted connection causes a grease clog or line damage, you will be responsible for all cleanup costs and may have an issued permit revoked, requiring a new, more complex application.
- Lease and insurance implications: Violations can breach commercial lease agreements requiring code compliance and may void property insurance if damages occur from unpermitted work.
Legal code: Local sewer use regulations, water connection requirements, road/sidewalk ordinances, grease discharge limits
Recent update: As of 2026, the DWSD has fully integrated its application tracking with the City's Building Safety Engineering and Environmental Department (BSEED) for coordinated plan review, reducing the risk of conflicting departmental requirements for new construction projects.
Who Needs a Water and Sewer Connection Permit?
| Type | Required | Notes |
|---|---|---|
| Restaurant (Full-Service) | Required | Required for any food service establishment with newly installed or altered plumbing fixtures, per Detroit's Department of Water and Sewerage (DWSD) Rules and Regulations for Water Service. |
| Bar / Nightclub | Required | Required for the installation of sinks, restroom facilities, or any other new water-using fixtures, as per DWSD regulations for commercial property connections. |
| Food Truck | Not Required | Typically not required for a mobile unit; water connection is managed via the licensed commissary's permit, as per DWSD mobile vendor water use guidelines. |
| Coffee Shop / Café | Required | Required due to the installation of espresso machines, commercial dishwashers, and restroom sinks, per DWSD rules for commercial water service. |
See which restaurant types need this requirement — and which don't.
See Full Requirements →Field-by-Field Guide (25 Fields)
21 of 25 auto-filledBusiness Legal Name
textEnter the exact legal name of your business entity as it appears on your Articles of Incorporation/Organization or any assumed name (DBA) filing, as Detroit's Department of Water and Sewerage (DWSD) requires a precise match for billing and service agreements.
COMMON MISTAKE: Submitting a 'doing business as' (DBA) name when the permit application must be under the formal LLC or corporate name, causing rejection as the legal entity cannot be verified.
Business Type
textState the legal structure of your business, such as 'Limited Liability Company (LLC),' 'Corporation,' 'Sole Proprietorship,' or 'Partnership,' as this determines liability and insurance requirements for the connection.
COMMON MISTAKE: Leaving blank or writing a generic term like 'Restaurant' instead of the formal legal designation, which delays the application while the DWSD requests clarification.
Federal EIN
textProvide your business's nine-digit Employer Identification Number (EIN) issued by the IRS, formatted as XX-XXXXXXX, which is used by DWSD for account setup and tax reporting.
COMMON MISTAKE: Entering a Social Security Number (SSN) for a sole proprietorship without an EIN, which can be accepted but requires specific additional declaration; entering an incorrect number triggers a verification failure.
Owner/Representative Name
textEnter the full legal name of the business owner, partner, or an authorized corporate officer who has the legal authority to sign contracts and accept liability for the water/sewer connection.
COMMON MISTAKE: Listing a property manager or employee without formal signing authority, leading to the permit being rejected until a notarized letter of authorization is submitted.
Owner/Representative Title
textState the official title or role of the person listed above, such as 'President,' 'Managing Member,' 'Owner,' or 'Authorized Agent,' to establish their capacity to bind the business.
COMMON MISTAKE: Writing informal titles like 'The Boss' or leaving it blank, which requires follow-up from DWSD to confirm legal authority and adds 1-2 weeks to your timeline.
Owner/Representative Phone
textProvide a direct, working phone number (including area code) for the owner/representative, as DWSD inspectors or billing staff will use this for urgent site access or account issues.
COMMON MISTAKE: Entering a disconnected or incorrect number, which can lead to missed inspection appointments and subsequent permit delays or fines for missed deadlines.
Owner/Representative Email
textEnter a valid, frequently monitored email address for official permit status updates, inspection schedules, and electronic correspondence from the DWSD.
COMMON MISTAKE: Using an outdated or misspelled email, causing critical notifications like inspection approvals or deficiency notices to be missed and halting the connection process.
Property Address
textEnter the complete street address of the restaurant property where the water and sewer connection will be made, including street number, name, and unit/suite if applicable, as this must match DWSD's parcel records.
COMMON MISTAKE: Submitting a mailing address or P.O. Box instead of the physical service location, which is grounds for immediate rejection as DWSD cannot locate the parcel for engineering review.
Property Ownership Status
textDeclare whether you 'Own' or 'Lease' the property, as lessees typically need to provide a copy of the lease and may require the property owner's co-signature on the permit application.
COMMON MISTAKE: Incorrectly selecting 'Own' when leasing, which leads to rejection once DWSD cross-references property records and discovers a discrepancy in ownership.
Property Deed
textProvide the official Liber (book) and Page number or Instrument Number from your property deed or most recent title document, which DWSD uses to verify legal ownership and parcel identity in the county register of deeds.
COMMON MISTAKE: Leaving blank or entering an incorrect, incomplete, or outdated deed reference, forcing DWSD to suspend the application until proper documentation is submitted and verified.
ApronPrep auto-fills 21 of 25 fields from a single compliance interview — no re-typing, no guessing what the government expects.
Top 5 Water and Sewer Connection Permit Mistakes
1. Mismatching the Service Address with Official Parcel ID
Using the restaurant's marketing address or a previous lot number instead of the legal Parcel ID assigned by the Detroit City Assessor. The Detroit Water and Sewerage Department (DWSD) cross-references the application with city property records; a mismatch triggers a manual review. This common error adds 10–15 business days to your timeline while DWSD clerks reconcile the discrepancy. Always provide the exact Parcel Identification Number (PIN) from your property tax bill or deed.
2. Underestimating the Required Water Meter Size
Selecting a standard 3/4" or 1" meter based on guesswork, not on the calculated peak demand for your commercial kitchen and fixtures. DWSD reviews your proposed meter size against your submitted plumbing plans; an undersized meter requires a full application resubmission with corrected engineering specs. This mistake adds 3–4 weeks for re-approval and may incur additional plan review fees. Have your licensed plumber or engineer calculate the required meter size (e.g., 1.5", 2") using the Detroit Plumbing Code's fixture unit table before you apply.
3. Submitting Outdated or Unsealed Plumbing Plans
Filing preliminary sketches or plans without the wet stamp and signature of a Michigan-licensed professional engineer or architect. DWSD's Engineering Division mandates sealed plans for all commercial water service connections to verify compliance with state and city codes. Applications with unsealed plans are rejected immediately, requiring you to restart the process with a professional. This oversight can delay your opening by 4–6 weeks and costs you the initial government filing fee.
Skip the Paperwork on Your Water and Sewer Connection Permit
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Water and Sewer Connection Permit by City in Michigan
| City | Fee Range | Timeline |
|---|---|---|
| Detroit | Contact Detroit Water & Sewerage Department for current permit fees and connection charges | Typically 2-4 weeks from complete application submission to permit issuance, pending inspection requirements and DWSD workload |
| Grand Rapids | Contact authority for current fees - typically permit fees plus inspection charges apply | 2-4 weeks from application submission to inspection scheduling; actual construction and final approval timeline depends on scope of work |
| Warren | Contact Warren County Water District at 270.842.0052 for current application fees and service connection charges. Reference 2025-2026 Water & Sewer Rates PDF for rate schedule. | 2-4 weeks from application submission to service activation, pending permit approvals and meter installation scheduling |
Government Filing Fees
Contact Detroit Water & Sewerage Department for current permit fees and connection charges
Timeline: Varies
Step 1: Obtain the Water & Sewer Service Permit Application Packet from Detroit Water & Sewerage Department (DWSD)
Download the latest version of the 'Water & Sewer Service Permit Application Packet' directly from the official DWSD Business Services website. You need Form 101 (Application), Form 102 (Water Service Statement of Understanding), Form 103 (Sewer Service Statement of Understanding), and the current insurance requirements document. Using an outdated packet is the most common cause of immediate rejection. This step typically takes 15–30 minutes.
Step 2: Complete the Water and Sewer Service Permit Application form with property and business details
Fill out all 28 fields on Form 101, including the legal property description from your deed or purchase agreement, the parcel ID (aka Tax ID Number), and precise details about the requested meter size and connection location. ApronPrep can auto-fill the business name, EIN, and owner contact info. Incorrect parcel identification adds 1-2 weeks of correction time. Allot 1–2 hours for careful completion.
Step 3: Review and sign the Water Service Statement of Understanding
Read and sign Form 102, which outlines your responsibilities for backflow prevention and payment for all water usage. You must have your business's legal name and address exactly as registered with the State of Michigan. The authorized signatory must match the name on the application. Missing or mismatched signatures cause processing halts. This review takes about 30 minutes.
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 Michigan.
ADA Compliance Self-Certification
federal
Alarm System Permit/Registration
local
Annual Report Filing
state
Application for Employer Identification Number
federal
See all co-required forms and how they connect to your compliance dossier.
See All RequirementsProcessing times vary widely, typically from 2 to 8 weeks after application submission, as posted on the Detroit Water and Sewerage Department (DWSD) website. The timeline depends on the complexity of the project, inspection availability, and whether your application requires concurrent approvals like a Building Permit. Contact DWSD for a current estimated timeline for your specific project.
The official government filing fee for the application itself is listed as $0–$0, per the DWSD fee schedule. However, you are responsible for all costs associated with the physical connection, inspection, and any required infrastructure upgrades, which can total several thousand dollars. Not legal advice — verify all costs with the Detroit Water and Sewerage Department before starting work.
No. Permits are issued for a specific property and connection point based on its unique site plan. A new location requires a completely new application and inspection process. You must also secure all new location-specific permits, including a new Certificate of Occupancy, before the water and sewer permit can be approved.
This is a one-time construction permit, not a recurring license. Once the connection is installed, inspected, and approved by DWSD, the permit is closed. Ongoing responsibility is governed by your utility account and adherence to city codes, such as maintaining any required Backflow Prevention Device Certification.
A DWSD inspector will verify the installation matches the approved plans, checking pipe materials, sizing, depth, proper sealing, and connection to the public main. They will also ensure the work does not conflict with other underground utilities. The inspection must be scheduled in advance, and all work must be exposed and accessible—failure results in a re-inspection fee and project delay.
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 Michigan specifically, we have analyzed compliance dossiers for 3 cities (Detroit, Grand Rapids, Warren), generating Rich FILs (Form Intelligence Layers) with 25 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
- Detroit — Department of Public Works (DPW)
- Grand Rapids — Department of Public Works (DPW)
- Warren — Department of Public Works (DPW)
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