Wrong Square Footage on Your Miami Listing? Fix It First
Why does my Miami home show different square footage in different places?
Because each source measures something different. The Miami-Dade Property Appraiser reports "adjusted" area built to assign taxable value, which counts garages, porches, and carports at a fraction. Lender appraisers report finished living area under the ANSI Z765 method. Listing sites copy whichever number they find first. If the numbers disagree by more than a room, resolve it before you list, not after the appraisal.
By Lynley Ciorobea | October 7, 2026
Pull up your house on the Miami-Dade Property Appraiser site. Then on Zillow. Then find the survey from your closing. Three numbers, and none of them is necessarily wrong.
They answer different questions. The county's figure is adjusted area, a number built to calculate taxable value, not to tell a buyer how much house they're getting. The Property Appraiser's own explanation says garages, carports, porches, and covered entries count at a fraction of a full room: roughly 0.5 to 1.4 for a garage depending on finish, 0.25 to 0.5 for porches and carports, 0.25 for a covered entry. A county figure of 3,400 can sit on top of 2,900 feet of air-conditioned living space.
A lender's appraiser measures a third way. Since April 2022, Fannie Mae has required appraisers to use the ANSI Z765-2021 method to report living area. The garage is out. Space that sits partly below grade is generally reported separately. Whatever the appraiser writes down becomes the number your buyer's lender cares about.
Where the gap costs you money
Picture a 1960s ranch in Pinecrest with a Florida room that was enclosed in the 1980s and a garage that became an office. The listing carries the county number. The buyer's appraiser measures and finds 300 feet less living area than the listing says. At an illustrative $1,000 per square foot on a $2.5 million house, that is $300,000 of implied value the appraiser will not credit. Now you are renegotiating price with a buyer who has already started their financing clock. I wrote about what that conversation looks like in what to do when an appraisal comes in low.
The reverse hurts too, and quietly. If the county shows 2,600 and you actually have 3,100 permitted feet, buyers who filter for 3,000 and up never see your listing. Nobody emails you about it. The showings just don't happen.
Older homes in Coral Gables and Pinecrest are where this shows up most, because decades of additions, enclosed lanais, and garage conversions pile up between sales. Records often lag the house.
One more thing, and it matters. An enclosed lanai or converted garage only helps if it was permitted. An appraiser may not count conditioned space that has no permit and no dedicated cooling, and correcting the county record means putting the work in front of the county. If you are not sure what you have, read about the state's $7,500 permit exemption before you call anyone.
There is also the legal side. Florida is not a buyer-beware state when a seller or agent supplies a number. In a 1985 case, Miller v. Sullivan, a house listed at 1,417 square feet turned out to have 1,092 of heated and cooled space. The court found the sellers not liable on those facts, because nothing showed they had made the representation, but it left the listing agent exposed. That is not a safe harbor for you. If you handed over a number, it's your number, and it's a good reason to have an attorney read what you put in writing.
So measure. Start with your property card from the Property Appraiser, free and online. Note the adjusted area and the building description. Then compare it to your last survey and your permit history. If they disagree by more than a room, pay for an ANSI-style measurement and floor plan from an appraiser or measuring service before you list. If the county record has an error, the Property Appraiser says to contact them at any time, with a survey or architectural plans to back it up.
Then decide how the listing describes the house. Living area from the measurement, with garage, porches, and any unpermitted space described separately and plainly. Buyers pay for what they can verify. An honest 2,900 that holds up at appraisal beats a 3,400 that falls apart on day 20.
Frequently Asked Questions
Is the Miami-Dade Property Appraiser's square footage the same as my home's living area?
No. The county uses adjusted square feet, which weights garages, patios, carports, and covered entries at fractions of living space. It is usually larger than the air-conditioned area a lender's appraiser would report.
Can I use the county's square footage on my listing?
You can, but it is risky. The county figure is a tax calculation, not a measurement of living area, and an appraiser's number may come in lower. Industry guidance warns agents not to rely on tax records alone.
How do I correct an error in my county square footage?
Contact the Miami-Dade Property Appraiser. They say you may do so at any time of year and can submit a survey or architectural plans to support the correction.
Does an enclosed lanai or garage conversion count as living area?
Often not, unless it is permitted, finished, and conditioned like the rest of the house. Appraisers apply the ANSI standard to what is actually there, and an unpermitted conversion can create a gap between the record and the appraisal.
Pull your property card tonight and set it next to your last survey. If the two numbers are far apart, that is the first thing to settle before photos get scheduled.
About Lynley Ciorobea
Lynley Ciorobea is a Miami-born real estate professional known for helping homeowners successfully prepare, position, and sell their homes across Coral Gables, South Miami, Pinecrest, Palmetto Bay, and the surrounding southern Miami neighborhoods. Since 2007, she has built her business around thoughtful strategy, strong negotiation, and a marketing-first approach designed to help listings stand out in an ever-evolving market.
A true local, Lynley grew up in Pinecrest and graduated from Palmer Trinity School before attending Duke University, where she earned a BA in Psychology. Her deep roots in Miami give her a nuanced understanding of the architecture, lifestyle, and character that make each neighborhood distinct. From classic Old Spanish homes in Coral Gables to newer construction in South Miami and Pinecrest, she brings a local perspective that goes far beyond surface-level market knowledge.
Over the years, Lynley has naturally become a trusted resource for homeowners preparing to sell. Many of her clients come to her long before their home ever hits the market, looking for guidance on timing, pricing, improvements, and how to position their property thoughtfully. She approaches each listing as a strategic launch rather than a simple transaction, combining market insight, negotiation experience, and elevated marketing to help sellers move forward with clarity and confidence.
As the founder of the Lynley Residential Group, Lynley remains personally involved in every listing she represents. She leads each transaction from initial strategy through closing, ensuring that every detail — from pricing and preparation to storytelling and exposure — reflects the uniqueness of the home itself. Her work often centers on architecturally interesting properties and homes where thoughtful positioning can make a meaningful difference in outcome.
Throughout her career, Lynley has consistently ranked among the top real estate agents in Miami. She has been recognized as part of EWM's Chairman's Club, placing in the top 5% of the company; in 2022 she was honored as the #2 individual agent at the company overall with $37 million in annual sales; and she's a leader in Miami with Real Broker. With more than $100 million in career transactions and more than 60 5-star Google reviews, her experience spans a wide range of property types while maintaining a strong focus on seller representation in southern Miami.
Beyond her work with clients, Lynley is known locally for her market insight and community-focused content. Through her weekly newsletter, neighborhood videos, blog posts, and social media, she shares thoughtful perspectives on the Miami real estate market and the lifestyle that surrounds it. Her approach is informative without being overwhelming, offering homeowners a clear understanding of how market conditions affect real decisions.
If you're preparing to sell a home in Coral Gables, Coconut Grove, South Miami, Pinecrest, Palmetto Bay, or nearby areas, Lynley offers a local perspective shaped by experience, relationships, and a genuine understanding of what makes Miami homes so special. Learn more at lynleyresidential.com.