Licensed contractor and cash home buyer since 2010

Sell a House With Unpermitted Additions

A converted garage, an enclosed carport, a basement apartment, a deck that was never inspected -- unpermitted work surfaces at exactly the wrong moment, usually during an appraisal.

A converted garage, a finished basement, an addition your father built in 1998 -- unpermitted work shows up as a square footage mismatch on the appraisal and a raised eyebrow from the buyer's lender. To us it is just work to evaluate.

Last reviewed: September 14, 2026

What you are dealing with

Sound familiar?

  • Square footage the county does not recognize
  • Appraisers refusing to count the addition
  • Retroactive permit processes that require opening walls
  • Buyers' lenders declining the whole file

Questions sellers ask us first

  • “Do I have to legalize it before selling?”
  • “Will the county make me tear it out?”
  • “Does it hurt the value?”

What you will need

  • • Property record card, if you have it
  • • Any permits that were pulled
  • • Deed

Why this matters here

We don’t have to guess what repairs cost. We do the work.

Most cash buyers pricing your repairs have never run the trades. Unique Construction has been a licensed Tennessee contractor since 2010 and self-performs most of the work, so the same team looking at the condition of the property understands what it takes to repair it. That is why the number holds up instead of getting cut a week before closing.

How we calculate your offer

How it works in Tennessee

The timeline, the law, and your options

  1. Step 1

    Discovery

    The mismatch usually appears when an appraiser compares the property record card to what is actually standing.

  2. Step 2

    Retroactive permitting

    Local building departments can permit existing work after the fact, typically requiring inspection and sometimes exploratory demolition.

  3. Step 3

    Correction or disclosure

    The work is either brought into compliance or the property sells to a buyer who will handle it.

Legal notes

  • • Unpermitted work should be disclosed; concealing it creates real post-closing exposure.
  • • Insurance carriers may deny claims arising from unpermitted construction.

Your options

  • • Pull retroactive permits and bring the work to code
  • • Remove the addition
  • • Sell as-is to a contractor-buyer

How we handle it

What selling to us looks like

You do not have to permit anything before selling to us. As a licensed contractor we know what retroactive permitting takes in each jurisdiction and we take that work on ourselves after closing.

  • We assess unpermitted construction the way an inspector would, because we build to code for a living.
  • No requirement that you legalize, permit, or demolish anything before selling.
  • If the work is sound, it stays; if it is not, our crews correct it after closing at our expense.
  • We are not relying on an appraiser's square footage, so a records mismatch does not blow up the price.

Decision guide

Build the plan around the actual file

Decisions to make before choosing a unpermitted additions or work sale

Begin with the questions that change the outcome: Do I have to legalize it before selling? Will the county make me tear it out? Does it hurt the value? Those answers establish who has authority, whether a court or lender controls the calendar, and how much room remains for repair work, marketing, or negotiation. They should be answered from the actual Tennessee file rather than from a rough online estimate.

The available paths include Pull retroactive permits and bring the work to code; Remove the addition; Sell as-is to a contractor-buyer. Comparing those paths means calculating net proceeds, time at risk, money required before closing, and the consequence if the transaction fails. A higher advertised price is not a better result when the plan cannot meet the controlling deadline or requires cash the owner does not have.

Documents that turn this unpermitted additions or work plan into a closing

Useful starting records include Property record card, if you have it, Any permits that were pulled, Deed. The closing attorney or title company uses the recorded deed and lien search to identify the legal owner and amounts that must be released. We use the property visit to price condition separately, so a repair issue is not confused with a title problem and a title problem is not hidden inside an arbitrary repair deduction.

Unpermitted work should be disclosed; concealing it creates real post-closing exposure. Insurance carriers may deny claims arising from unpermitted construction. Before signing, the written agreement should state the price, property included, closing date, responsibility for contents and possession, and which liens or charges are paid from proceeds. That makes the proposed solution testable against the real problem instead of relying on a verbal promise.

FAQ

Questions sellers ask

Will you report me to the county?
No. We handle permitting in our own name after we own it.
How much does it reduce the offer?
It depends on what has to be opened up and inspected. Sometimes very little.
The addition has no heat or permits at all.
Common. Still buyable.
Should I get a retroactive permit first?
Almost never. It can trigger a full inspection and required upgrades that cost far more than the discount they would avoid.
Do I still have to disclose it?
Yes. Known unpermitted work is a material fact in Tennessee. Tell us -- it will not change our willingness to buy.

No obligation

Get a written offer

Tell us what is going on. We will be straight with you about whether selling is actually your best move.

Unpermitted Work? Get your offer

No obligation, no fees, no repairs. Tell us about the property and you get a written cash offer within 24 hours of the walkthrough.

Prefer to talk? Call (865) 277-6808 or email jake@ucstn.com.

Unpermitted Work? Call (865) 277-6808 and we will tell you where you stand.

Call (865) 277-6808

This page is general information, not legal or financial advice. Every situation is different — call us and we'll walk through yours.