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535 W END Avenue #12, New York, NY 10024
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$14,900,000
Beds: 7
Sq. Ft.: 8,451
Baths: 7 | 1
 
113 E 64TH Street #House, New York, NY 10065
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$14,500,000
Beds: 6
Sq. Ft.: 9,738
Baths: 6 | 2
 
250 W 71ST Street #House, New York, NY 10023
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$11,950,000
Beds: 5
Sq. Ft.: 7,137
Baths: 5 | 3
 
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Chelsea

Chelsea

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East Village

East Village

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Financial District (Fidi)

Financial District (Fidi)

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Flatiron

Flatiron

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Gramercy

Gramercy

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Lower East Side (“LES”)

Lower East Side (“LES”)

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Get to know Karen Kostiw

Karen Kostiw’s extensive background in New York City real estate and finance allows her to uniquely understand her clients’ needs and concerns in today’s fast-paced market. Karen advises both buyers and sellers in the purchase and sale of new developments, condos, coops and town-homes. As a former financial services executive with team-building and negotiation experience, Karen utilizes a project management discipline to ensure all steps in the real estate transaction process move smoothly and stress free. Continue Reading

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What Clients Are SayingTestimonials

"Karen was a great agent for a first time homebuyer in NYC. She helped me go through the process (including coop board approval) extremely quickly, I was in my lovely new apartment in no time. She is very... continued"
- Eric
"Purchasing property in New York City is a tough endeavor, let alone for someone out of town. Having a real estate agent is just not enough to navigate the obstacles that seemingly arise at every corner.... continued"
- Christa
"Karen is the ONLY realtor you should ever consider using. As a real estate developer, I have yet to meet a realtor that exhibits the enthusiasm, attention to detail and, most importantly, professionalism... continued"
- Jeff
"Karen is outstanding! She goes above and beyond the call of duty. Always seeing the big picture. If you have no idea where to start. Karen will set the path and take you carefully and clearly through it... continued"
- Jose & Joanna
"Karen’s unique background in business and liberal arts distinguishes her from other real estate professionals we have worked with in the Tri-State area in general and Manhattan in particular. In addition... continued"
- Vivian & Calvin
"Karen was a very professional, diligent, and overall reliable agent when working through the process of buying my home. As it was a first home for me, there was definitely some hand-holding along the way... continued"
- Russ
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