Real Estate Agent

Profile Picture

30
Yrs Exp.

Tamatha Costello

Keller Williams
Agent Lic #: 9693565

Transactions
(last 12 mos.)
5
Avg. Days on Market
13
Avg. Sales Price
$668K

About

Tamatha “Tammie” Costello is a treasure in real estate, with nearly 30 years of experience specializing in residential sales, upsizing, and downsizing. A Union County native and longtime Cranford, New Jersey resident, Tammie brings deep local knowledge of the communities she serves, including Westfield, Cranford, Clark, Scotch Plains, and surrounding towns. She launched her career in 1996, quickly turning her passion for real estate into a personal success story by purchasing her own first home. Since then, her focus has remained on helping clients achieve their American dream—whether they are first-time buyers, growing families looking to upsize, or empty-nesters ready to downsize. Clients know her best by her friendly slogan: “Ask Tammie about real estate.” With a stellar ratings on Zillow from dozens of reviews, Tammie is consistently praised for her professionalism, market expertise, patience, and genuine care. She makes the buying and selling process smooth, educational, and stress-free for every client. When you’re ready to make your next move, just Ask Tammie about real estate! 🏡

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