Septic permit and as-built records are almost always public and almost always sit at the county or district health department that issued the permit, not with the state, the seller, or the title company. The reason most buyers never see one before closing isn't that the record doesn't exist; it's that nobody tells them which office holds it or whether they can search it themselves.
An inspector working without the as-built is probing blind: guessing at the tank location, guessing at the field layout, guessing at what the system was originally permitted to handle. Every one of those guesses gets easier, cheaper, and more accurate with the recorded drawing in hand. Finding the record before the inspection, not after, is what actually changes the quality of information you're buying on.
• Start with the county's own page for where you're buying: we publish, per county, where septic records are held, whether you can search them yourself online, and how many records we hold for that county.
• Most offices will do a parcel-number or owner-name lookup; having the parcel number ready (from the listing or the county assessor site) speeds this up.
• A written public-records request works everywhere, though the wait time and process vary; for the handful of states with a real public-records statute we've logged, see the relevant state regulation page.
• Where we already hold the record for that property, it's attached directly on our parcel map, which is faster than any request.
See what a septic as-built tells a buyer for what's typically on it and how to read it.
We hold recorded septic as-built drawings and parcel-level septic-versus-sewer classification for thousands of US counties, with the specific office that holds each county’s records. Generating a code-referenced septic design for a parcel is free.
Find your county’s septic records Open the parcel map / start a free design
In almost every jurisdiction, yes; it's a government permit record, generally released the same way any other public record is, though the exact process and any fee vary by county.
Almost always the county or district health office that issued the permit, not the state agency, even in states where the state sets the overall code.
In most counties you can request or search it yourself. Check the county's specific page for whether an online search exists or a written request is needed.
It can mean the system predates permitting in that county, was never permitted, or the record hasn't been digitized. See our guide on what an unpermitted system means for a sale.
Reviewed 2026-08-31 against the official sources linked above (where a source is cited) or, where none is cited, left deliberately general. Laws, lender overlays and local ordinances change; confirm current requirements with the county or state agency, your lender, and a licensed inspector before you rely on this for a closing.