A listing entered in both the REBNY RLS and OneKey MLS is visible to 57,000+ agents, and each system covers ground the other does not. The RLS is the core system for Manhattan and the rest of NYC. OneKey's service area runs through Brooklyn, Queens, Nassau, Suffolk, Westchester, Rockland, Orange, Putnam, and Sullivan counties as well as Manhattan. I list across Manhattan, Queens, and the Hudson Valley, so I work in both systems.
What Dual MLS Syndication Means
Dual MLS syndication means listing one property in more than one Multiple Listing Service. In the New York metro area those are the Real Estate Board of New York's Residential Listing Service (RLS) and OneKey MLS. Each has its own participating brokerages, so a buyer's agent who only searches one system never sees a listing that lives only in the other.
| System | Where it is strongest | Governed by |
|---|---|---|
| REBNY RLS | New York City, centered on Manhattan | RLS Universal Co-Brokerage Agreement |
| OneKey MLS | Brooklyn, Queens, Long Island, Westchester, and the Hudson Valley counties, plus Manhattan | OneKey MLS Rules and Procedures |
| Both together | 57,000+ agents across the metro area | Each system's own rules apply to its own entry |
Source: OneKey MLS Rules and Procedures (Version 2024F); REBNY RLS Universal Co-Brokerage Agreement
Why Two Systems Reach More Buyers
An agent working Hell's Kitchen condos and an agent working single-family homes in Queens or Westchester may search different systems. Listing in both reaches each of them without anyone changing how they search.
The Rules That Apply to Your Listing
- One business day. Under OneKey's Clear Cooperation rule, a residential listing must be entered in the MLS within 1 business day of being marketed to the public.
- Coming Soon is capped. Both systems allow Coming Soon status for up to 14 days. No showings are allowed during that period, and days on market start when the listing goes Active.
- Each system has its own entry. A listing in the RLS does not automatically appear in OneKey. Your broker enters it in each one and keeps price and status matched.
Questions for your broker before you sign
- Which systems will the listing be entered in, and how quickly does each entry go live?
- Who keeps price and status matched in both?
Active NYC Listings: Full MLS Exposure
Properties reaching 57,000+ agents via RLS + OneKey syndication
126 E 57th Street #701
Midtown East
28-08 21st Street #4-D
Astoria
Listing information provided courtesy of the Real Estate Board of New York's Residential Listing Service (RLS). Information is deemed reliable but not guaranteed. Sale listings verified. ©2026 REBNY. RLS data displayed by Keller Williams NYC.
Make the Listing Itself Work
- Photos and staging: see the home staging guide and our staging and photography ROI data.
- Specific descriptions: name the nearby subway line and what it reaches. An apartment near the 1 train reaches Times Square and the Financial District directly.
- Virtual tours: they let buyers rule a unit in or out before scheduling a visit.
- Accurate pricing: a comparative market analysis sets a price that holds up, and overpricing extends time on market.
For a complete selling roadmap, see our guide on selling your NYC home in 45 days.
Active Listings
Active Listings in Manhattan
Listings sourced live from REBNY RLS and OneKey MLS. All listings verified active at time of viewing. Updated daily.
View Active Listings Get Custom SearchThis information is not verified for authenticity or accuracy and is not guaranteed. ©2026 The Real Estate Board of New York, Inc. All rights reserved. Listing data sourced from REBNY RLS and OneKey MLS. Listing Courtesy of Keller Williams NYC.
Milton Coste
Licensed Real Estate Associate Broker · Keller Williams NYC
License No. 10301213304 · 360 Madison Avenue, 9th Floor, NY 10017
Equal Housing Opportunity. We are pledged to the letter and spirit of U.S. policy for the achievement of equal housing opportunity throughout the Nation. Milton Coste and Keller Williams NYC are committed to full compliance with the Federal Fair Housing Act (42 U.S.C. §§ 3601-3619), the New York State Human Rights Law (Executive Law, Article 15), and the New York City Human Rights Law (Title 8, NYC Administrative Code).
MLS & Listing Data Disclaimer: This information is not verified for authenticity or accuracy and is not guaranteed and may not reflect all real estate activity in the market. ©2026 The Real Estate Board of New York, Inc. All rights reserved. Listing information is provided solely for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Listing data sourced from REBNY RLS and OneKey MLS. Listing Courtesy of Keller Williams NYC.
Financial & Market Data Disclaimer: All financial figures, market statistics, price estimates, and rental rates are sourced from StreetEasy Market Reports and provided for informational purposes only. Market conditions change frequently. This content does not constitute financial, tax, investment, or legal advice. Consult a licensed financial advisor, CPA, or attorney before making financial decisions. Published in accordance with 19 NYCRR Part 175 (NY DOS Real Estate Broker Advertising Regulations). Milton Coste operates as a Licensed Real Estate Associate Broker under the supervision of Keller Williams NYC.
Content published: February 2026 · Milton Coste · Keller Williams NYC · License No. 10301213304
