Permits
Unpermitted work in Houston: how to find it, fix it, or sell anyway
The previous owner enclosed the patio. Nobody pulled a permit. Now you are selling, and the buyer's lender has questions. This is the finding that ends Houston transactions at day 25 — and it is entirely manageable if you find it first.
Why this matters more than people expect
Unpermitted square footage causes three separate problems, and most people only anticipate the first.
- The appraisal. Appraisers credit permitted, heated and cooled, finished living area accessible from the main house. Space that does not appear in the county record frequently cannot be counted in gross living area at all. You built it, you paid for it, and it does not appear in the value.
- The lender. This is the one that kills deals. Underwriting reviews the appraisal, notices the discrepancy between county records and what is physically there, and may require a retroactive permit — which can mean opening finished walls for inspection. On a signed contract with a moving date, that is a crisis.
- Insurance. A carrier can take the position that unpermitted work is not covered, which becomes a real problem exactly when you need it to not be.
Find it before you list, not during
Every option on this page is available to you calmly before you go to market. Almost none of them are available calmly after a buyer's lender raises it. This is the single strongest argument for the pre-market walkthrough.
How to check the permit history on a Houston address
Compare three things:
- The county appraisal district record — what square footage and improvements are officially on file.
- The city or county permit record for the address, going back as far as it goes.
- What is physically there. Measure it.
Discrepancies concentrate in predictable places: enclosed patios and porches, converted garages, converted attics, sunrooms, added bathrooms, and detached structures with power or plumbing run to them. If a space feels like it was added later — different ceiling height, a step up or down, a wall that does not align with the roof line — it probably was.
I run this check for clients as part of the walkthrough, because as a contractor I can usually tell from the construction which parts of a house came later even before pulling the record.
Your four options
1. Permit it retroactively
The cleanest outcome and sometimes the most expensive, because inspection may require opening finished surfaces to verify framing, electrical and plumbing. Cost depends entirely on whether the work was built to code in the first place. Well-built unpermitted work is usually a paperwork exercise; badly built unpermitted work is a renovation.
2. Disclose it and price accordingly
Legitimate and common. You disclose the space as unpermitted, the listing does not claim it in the heated square footage, and the price reflects the house that can actually be appraised. Cash buyers and investors are unbothered. You lose the value of the space but you keep the transaction intact.
3. Reverse it
Occasionally the right answer for a badly executed garage conversion, particularly in neighborhoods where covered parking has real value and the conversion is visibly amateur.
4. Fix it properly and permit it
Where the space is genuinely useful and the house benefits from having it counted. This is the option where handling the construction and the permitting together actually saves money and time, because the scope and the submittal are planned together.
Disclosure
Texas sellers complete a disclosure notice covering known defects, repairs and additions. Knowingly concealing unpermitted work is not a strategy — it survives exactly until the buyer's lender or the buyer's own research surfaces it, at which point you have a legal problem in addition to a transaction problem. Disclose, and control the framing.
If you are the buyer
Unpermitted work is not automatically a reason to walk. It is a reason to find out, during the option period, what it would take to make right and what the house appraises for without it. Then negotiate with that number. More on underwriting a house with issues →
Both trades, one answer
I am a Texas licensed real estate agent and a general contractor. On questions like this that is not a marketing line — it is the reason I can answer both halves.
Frequently asked questions
Can I sell a house in Houston with an unpermitted addition?
Yes. You can permit it retroactively, disclose it and price the house on its appraisable square footage, reverse the work, or fix and permit it. What you cannot safely do is conceal it — it typically surfaces in the buyer's underwriting, which turns a manageable pricing issue into a collapsed transaction and a legal problem.
How do I find out if work on my Houston house was permitted?
Compare three records: the county appraisal district's square footage and improvements, the city or county permit record for the address, and what is physically present when you measure. Discrepancies cluster in enclosed patios, converted garages and attics, sunrooms, added bathrooms, and detached structures with utilities.
Does unpermitted square footage count in an appraisal?
Frequently not. Appraisers credit permitted, heated and cooled, finished living area accessible from the main dwelling. Space that does not appear in the county record often cannot be included in gross living area, meaning you paid to build it and receive no value for it at sale.
How much does it cost to permit an existing addition in Houston?
It depends almost entirely on whether the work was built to code. Well-built unpermitted work is largely a paperwork and inspection exercise. Work that was not built to code may require opening finished walls to verify framing, electrical and plumbing, which turns it into a renovation.
Will a lender approve a house with unpermitted work?
Sometimes, and sometimes only after a retroactive permit is obtained. Underwriting compares the appraisal to county records, and a discrepancy can trigger a condition that must be cleared before closing. This is why it should be identified during the option period rather than at day 25.