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Agent Profile

Karen A. Gastiaburo

Karen A. Gastiaburo

Licensed Associate Real Estate Broker
Harlem Office


Tel: (212) 381-2507
Cell: (917) 885-9136

Languages Spoken:      SPANISH, ENGLISH

Karen has made an indelible mark on the real estate industry in the four decades she has been working as a real estate professional. She knows the New York City marketplace inside and out. Karen’s real estate career began while she was pursuing acting, when she quickly discovered she had a real knack for matching people and properties.

Drawing on her communication skills and 37 years in the industry, Karen ensures all her clients receive exceptional customer service. She is known for maintaining grace under pressure as she calmly guides her clients through the twists and turns of the sales process. “Having a clear mind is the key to a successful closing,” she likes to say.

Karen has sold properties in neighborhoods across the city these past four decades and facilitated the launch and managed two Tribeca real estate offices these past 20 years. Overseeing and managing a number of development projects along the way.

She was a longtime resident of the Upper West Side and now lives in Harlem, where she is a homeowner in a neighborhood she loves for the diverse restaurants, lively art and music culture and close-knit community. She dedicates a generous amount of time to community initiatives in the arts (Art In FLUX) and healthy living, where she is an ambassador to (THAY) a non-profit organization that inspires community healing and activism through yoga and is also a certified yoga and meditation teacher.

Karen is an NYRS Designee, having received the Real Estate Board of New York’s premier professional residential real estate credential and is an active member of REBNY. She has served several terms as Co-Chair of the Downtown Committee, where she was instrumental in facilitating harmonious relations among the industry firms, and on the committee, for Deal of the Year, an annual REBNY Gala and was appointed to REBNYS’s Ethics Committee.

“I have known Karen for over 15 years, having purchased at least half a dozen investment properties in Manhattan. On every single occasion we ended up buying either the first or second property that she had picked for me! She always knew what my needs were and took the time to listen and understand what I was looking for. When describing Karen, words that come to mind include: intuitive, knowledgeable, informed, dedicated, and above all, an amazing person. Karen’s skills and talents as a realtor are unparalleled.” – Indira K.
"Karen is an amazing real estate broker -- warm, personal, patient, and accommodating. During the most stressful time of my life -- selling a home of 30+ years, Karen's mastery made this challenge to a rewarding experience. Karen has a thorough understanding of the real estate market, including the complexities of NYC coops, is thoughtful and responsive and listens to her clients' needs. All in all, Karen was a pleasure to work with, I recommend her wholeheartedly." - Tina I.
“Karen was a godsend. My husband and I were first-time buyers in New York City; we didn’t know the first thing about becoming homeowners. Karen walked us through the entire process from beginning to end and was there for us the whole way, with knowledge and understanding. When we had questions, she had answers. When we needed resources, she connected us to them. She is calm, kind, competent, and has her act together. We ended up buying a co-op, and the board remarked to us how well put-together our package was! All thanks to Karen. We were in such good hands, and for that we are grateful and want to sing her praises to others!” – Kim B.

Halstead Manhattan, LLC

Current Listings

Past Closings

The following are selected closed transactions in which Karen A. Gastiaburo represented the buyer, the seller, or both:


Recent Press

Sneak Peek Inside 23 West 116th Street #11D - Upper Manhattan, NYC

This property is now closed or no longer available. Take a sneak peek at this property and if you are interested in something comparable, please reach out to: Leanne Stella, Lic. R.E. Salesperson Tel: (212) 381-2592 - Cell: (917) 273-4405 lstella@halstead.com Karen A. Gastiaburo, Lic. Assoc. R.E. Broker Tel: (212) 381-2507 -...

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