Welcome to the City of Ann Arbor, MI

NOTE: This system holds outstanding cases and archival information for permits and plans applied for from ~2008 through March 2022. All new applications must be submitted and managed via stream.a2gov.org.
  • To access digitized microfiche and paper records of permits and projects from ~1930 to 2007, please use this site.
For assistance using this tool please see our Help Guide. If you are having problems using this site please contact the Building Department ([email protected])​ for help.

Enter any known contractor information in the fields below. You can search by registration number or company name. The search system includes "fuzzy" matching, which means you don’t need exact terms—if no results are found, try broadening or simplifying your criteria for better results.

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