Why we trust this route
Access type
Embedded well and septic records search
Completion
A property-matched well, sewage, septic, building, or inspection record
First file to pull
Any county septic permit, inspection record, and associated site plan tied to the property.
Sources checked
3 official sources
2026-07-28
Washtenaw County embeds its public permit-record search and says the best first search uses only the street number. Completion means A property-matched well, sewage, septic, building, or inspection record.
Washtenaw County is a strong Michigan wedge because the county gives owners a real online path to search septic records and site plans, alongside a formal time-of-sale program and a county permit workflow for new or replacement systems.
Local signal: Washtenaw County septic records checklist and permit lookup with online well and septic file search, time-of-sale workflow, and permit steps before you trust a repair or closing story.