Confirmed by Zillow – the most costly mistake homeowners make when selling their home (and how to avoid it)

Published On: July 8, 2025 at 8:00 AM
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Confirmed by Zillow - the most costly mistake homeowners make when selling their home (and how to avoid it)

New research from Zillow, located at better known as Redfin and Realtor.com, according to Zillow Showcase data, reveals the most common misconceptions homeowners have about selling a home that could cost them thousands of dollars.

Selling a home is one of life’s most important financial decisions, but a Zillow survey conducted by The Harris Poll reveals that many Americans misunderstand important aspects of the process. Christina Pappas, president of The Keyes Company and Illustrated Properties in Miami, highlights the fact that many sellers assume that large, expensive renovations guarantee a higher sales price. The new data highlights five common mistakes homeowners make when selling, and the ones they usually get right.

1. Investing in the Wrong Projects

Today’s sellers face more competition and need to invest more to prepare their home for sale. However, investing in the wrong improvements can significantly affect their returns.

Nearly a quarter of homeowners (23%) believe that building an addition offers the best return on investment when preparing a home for sale. In reality, simple improvements such as painting and upgrading landscaping offer a much better and more affordable return on investment for resale.

“Many sellers assume that large, expensive renovations will guarantee a higher selling price,” said Christina Pappas , president of The Keyes Company and Illustrated Properties in Miami . “In reality, buyers respond best to a thoughtful presentation: smart pricing, impeccable staging, an impactful digital presence and strategic updates like a fresh coat of paint. A good first impression attracts buyers. That’s why it’s essential to work with an agent who understands what buyers are looking for and how to make a property stand out online.”

Rita Armenteros

Graduated in Translation and Interpreting (English) and Hispanic Studies, I currently focus my activity on journalistic writing and research in the field of translatology. My profile combines philological skills and translatological knowledge. I see journalism as a tool for communicative mediation, and translation as an understanding of cultural codes. I aspire to continue my professional career based on linguistic precision, critical thinking and commitment to textual quality, in academic and media environments.