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New York City Realtor KAREN KOSTIW

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Blog

The Great Manhattan Bifurcation: Navigating a Two-Speed Market into 2026

  Manhattan Market October 6th: Bifurcation and the Breeze  The national real estate narrative of "rising inventory and price moderation" is a half-truth in New York City. Manhattan is currently operating on a bifurcated system, where the ultra-luxury and the middle tiers are exhibiting fundamentally different market behaviors. Understanding the "Two-Speed Market" gives you a Continue Reading

Cash is King, and Manhattan is its Throne: Decoding the All-Cash Luxury Market

The All-Cash Empire: Why Cash is Still King in NYC's Luxury Real Estate Market in 2025 Decoding the All-Cash Luxury Market In the rarefied world of New York City real estate.  The adage "Cash is King" is not a cliché; it is a market-defining reality. Manhattan is the throne for high-net-worth buyers and sellers.  This is particularly true in Manhattan, where all-cash transactions are Continue Reading

Manhattan Real Estate Market | Week of September 29, 2025

    Manhattan Real Estate September 29: Confidence Returns to the Market Market Finding Its Stride as Fall Momentum Builds The Manhattan real estate market snapshot for September 29 reveals a confident close to the third quarter and a strong transition into the fall selling season. As we move through one of the city’s most active periods, both co-ops and condos are drawing Continue Reading

99-Unit Buildings Are Shaping NYC Luxury Real Estate

\ Curtesy of David Watkis on Unsplash Understanding 99-Unit Buildings in NYC New York City’s skyline is evolving. A new development trend is reshaping the real estate industry. Buildings with exactly 99 residential units are appearing across the city. This pattern is intentional, driven by the 485-x tax abatement program. For luxury buyers and sellers, understanding this trend is essential. Continue Reading

Closing Costs in New York City Unpacked

Closing Costs in New York City Unpacked Buying or selling property in New York City comes with many moving parts—but one of the most critical, often overlooked, elements is closing costs. Whether you’re purchasing a co-op on the Upper East Side, a new development condo in Hudson Yards, or a townhouse in Brooklyn, understanding what goes into closing costs—and how they differ for buyers and Continue Reading

Manhattan Real Estate September 22 | Weekly Market Snapshot

By Karen Kostiw | Coldwell Banker Warburg Manhattan Real Estate September 22 Market Overview The Manhattan real estate snapshot for September 22 highlights a market that continues to balance momentum at attainable price points with resilience in the luxury segment. Activity increased across co-ops and condos, with Midtown and Downtown leading the way in both listings and signed Continue Reading

Weekly Market Snapshot | Manhattan Real Estate | Week of September 15, 2025

By Karen Kostiw | Coldwell Banker Warburg Manhattan Real Estate, September 15 Market Trends The Manhattan real estate snapshot for September 15 highlights a pivotal fall market. Activity picked up across co-ops, condos, and luxury properties. Traditionally one of the busiest seasons of the year, September continues to attract both new listings and active buyers across co-ops, condos, and Continue Reading

What to Do if Your NYC Home Isn’t Selling: Should You Become an Accidental Landlord?

Accidental Landlord NYC — Guide for New Landlords Becoming an accidental landlord in NYC can feel overwhelming. You may have inherited a property, relocated for work, or have chosen to rent out your home temporarily. Whatever the reason, renting property in New York City brings complex legal and financial responsibilities. Understanding these obligations early can help you protect your investment Continue Reading

Navigating New York’s Luxury Real Estate: Strategic Insights for Discerning Clients

  The New York City luxury real estate market is a dynamic ecosystem, characterized by unique opportunities and distinct challenges, for high-net-worth individuals seeking to acquire or divest of exceptional properties. Therefore, a strategic approach is not merely advantageous—it is imperative. My experience, forged on Wall Street and honed through rigorous project management, provides a Continue Reading

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124 Hudson Street
New York NY, 10013


Karen Kostiw
(917) 524-4152 Cell
(212) 327-9622 Office
(646) 422-4083 Fax

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