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Digital permit application gateway

Apply for a permit in Washtenaw County

Start with the issuing authority’s own submission lane. A complete application package, accurate valuation, and accessible inspection path are the fastest route through statutory plan review.

Recommended first click

Open the official online permit gateway.

Use the official digital gateway to submit plans, monitor review comments, pay required charges, and request inspections when the permit is issued. If the link is unavailable, use the agency website or phone number on the administrative profile to confirm the current lane.

Typical review lane

N/A; no fixed plan-review turnaround was published. Plans must be submitted and approved before a permit is issued, and the application must include required zoning, health, soil-erosion, and other applicable approvals.

Treat this as a planning signal, not a guaranteed approval date. Completeness, corrections, resubmittals, and agency workload control the actual clock.

01

Confirm jurisdiction

Verify the parcel is inside this agency’s service area and note whether a city, state, fire marshal, septic authority, or utility district also has approval authority.

02

Assemble a complete package

Prepare legible plans, site information, project valuation, ownership authorization, contractor information, and any energy, floodplain, zoning, or utility documentation the issuing office requires.

03

Track the review record

Keep the permit number, approved plan set, correction comments, fee receipts, and inspection results together. Those records establish the compliance trail for the next trade.

Application documents

Use the official form when a portal is not the only filing route.

Before submission, call (734) 222-3900; automated inspection line (866) 458-7358 if the project involves a change of occupancy, structural alteration, accessory structure, demolition, or work near a regulated environmental feature.

Source trail

Official sources for this profile

Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.

Project questions

Frequently asked questions for Washtenaw County

Who handles permitting for this jurisdiction?

Washtenaw County Building Inspection Department is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.

How should I begin an application?

Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (734) 222-3900; automated inspection line (866) 458-7358.

How long might review take?

N/A; no fixed plan-review turnaround was published. Plans must be submitted and approved before a permit is issued, and the application must include required zoning, health, soil-erosion, and other applicable approvals.

How are inspections scheduled?

Schedule required building, electrical, mechanical, and plumbing inspections through the county's automated inspection system at (866) 458-7358, available 24 hours a day, or through the permit portal. Provide the permit number and job address, keep work accessible and uncovered until approval, and request inspections as construction progresses. The county's current trade application instructs applicants to give advance notice and states that a visible permit number is required.

Which codes and exemptions should I review?

Washtenaw County Building Inspection provides county enforcement of Michigan's State Construction Code for building, electrical, mechanical, and plumbing systems in the county jurisdictions it serves. The current Michigan framework includes the 2021 Michigan Building Code, 2015 Michigan Residential Code for one- and two-family dwellings while the proposed 2021 residential update is stayed, 2021 Michigan Mechanical and Plumbing Codes, 2023 National Electrical Code with Michigan amendments, and current Michigan energy and rehabilitation provisions. Local zoning approval and other agency approvals may also be required before issuance. The county's applications identify limited plan-review exceptions rather than a single cosmetic-work list. Examples include certain small electrical systems, minor mechanical alterations as determined by the official, and specified one- and two-family mechanical work; no work may be concealed before inspection. Confirm whether ordinary repairs, reroofing, siding, decks, pools, or accessory structures require a permit before starting.

What makes an application complete

A portal submission is only as strong as its supporting record.

Before you click submit, make sure the drawings agree with the site plan, project description, valuation, ownership authorization, and contractor information. If the work changes structure, occupancy, drainage, fire protection, energy performance, or utility demand, describe that scope plainly. Ambiguous narratives create correction cycles and delay the field schedule.

Save the confirmation number, payment receipt, uploaded plan set, and every correction comment. Those records are the backbone of a defensible compliance file when multiple trades or agencies share responsibility.

Submission quality check

Site: address, parcel, access, setbacks, and existing conditions are consistent.

Scope: structural, mechanical, plumbing, electrical, fire, and energy work is identified.

Closeout: inspection contacts and the final approval path are understood before work begins.