City of Mason

Ingham County, Michigan

Last verified September 17, 2026

City of Mason is a jurisdiction in Ingham County, Michigan, with an online portal for searching and pulling active or historical building permits. Use the contact information below to reach the local building department, or the mailing address if the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.

Certificate Holder Mailing Address

City of Mason, Community Development
201 W. Ash Street
Mason, MI 48854

Use this address when the jurisdiction needs to be listed as a certificate holder on a contractor's insurance documentation.

Additional Notes

BS&A Online portal (confirmed on bsaonline.com as serving City of Mason, Ingham, MI) is used for building department permit applications/record search per the portal itself; township site specifically mentions it for roof/siding permits but portal description covers the building department generally. Electrical/plumbing/mechanical permits are issued by the State of Michigan LARA Bureau of Construction Codes, not the city, per the city's own page. This is DIFFERENT from Mason Township, Cass County.

What You Need Before Applying for a Permit

Most building departments ask for the same core package before they'll issue a permit: a completed application naming the property owner and contractor, the contractor's state license number and proof of insurance (general liability, and workers' comp if employees are on the job), a notice of commencement or equivalent recorded filing for larger jobs where the state requires one, and scaled plans or a site plan for anything beyond minor repairs. Roofing, fence, pool, and solar permits typically have their own simplified checklists — City of Mason's department (above) can confirm exactly what applies to your project.

Why this matters for insurance: permit history is one of the first things an underwriter or adjuster checks. Unpermitted work — a finished basement, an added bedroom, a rebuilt roof — can complicate a claim or even void coverage for that portion of the loss, and it routinely surfaces during a home inspection. Pulling the right permit up front, and keeping the closed-permit record on file, protects both the property's value and its insurability at resale.

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