Septic and the Home Sale in Tennessee: What Is Actually Required

This is one of the most confidently mis-stated facts in Middle Tennessee real estate, so here is the actual rule.

What the law requires: disclosure

Under the Tennessee Residential Property Disclosure Act (T.C.A. § 66-5-201 et seq.), sellers complete a disclosure form. The statutory form at § 66-5-210 includes a waste disposal section — City Sewer / Septic Tank / Other — and a defect checkbox for Sewer/Septic: Yes / No / Unknown.

The form itself states it is "not a warranty, or a substitute for any professional inspections or warranties that the purchasers may wish to obtain," and advises only that parties "may wish to obtain professional advice and/or inspections." No seller inspection is mandated.

What buyers and lenders actually order

Two optional, fee-based state services fill the gap:

Williamson County is different

Williamson runs its own septic program and has its own instrument, called Recertification — defined in the county regulations as a service in which a department representative makes an on-site investigation of a property served by an existing system, to determine whether the system is failing and whether any portion has been encroached upon.

Whether recertification is mandatory at transfer or optional, what it costs, and what triggers it are questions we have not been able to answer from public documents — the section governing it reads "Reserved" in the version available to us. Call the Williamson County Department of Sewage Disposal Management at (615) 790-5751 before relying on anything about it.

The practical read

Nothing forces an inspection, which means on an acreage purchase nobody may look at the system unless you ask. The failure you are trying to avoid is not the tank — a tank is a few hundred dollars to pump. It is the drain field, where replacement runs into five figures, and where an encroached or saturated field will not announce itself at a walkthrough.