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Rosemary O'Neill

Daniel Gale Sotheby's International Realty
5.023 reviews
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Recent Sales

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  • $805,000
    4 bd2 ba1,638 sqft Valley Stream, NY
    4 bd2 ba1,638 sqft
    Valley Stream, NY
    Sold 2 months ago
    Buyer
    81 Todd Road, Valley Stream, NY, 11580
  • $1,708,000
    5 bd3 ba3,320 sqft Manhasset, NY
    5 bd3 ba3,320 sqft
    Manhasset, NY
    Sold 4 months ago
    Seller
    2 Stonytown Road, Manhasset, NY, 11030
  • $1,550,000
    3 bd3 ba1,860 sqft Port Washington, NY
    3 bd3 ba1,860 sqft
    Port Washington, NY
    Sold 8 months ago
    Buyer
    34 Davis Road, Port Washington, NY, 11050
  • $900,000
    3 bd2 ba1,259 sqft Port Washington, NY
    3 bd2 ba1,259 sqft
    Port Washington, NY
    Sold 1 year ago
    Seller
    10 Cross Street, Port Washington, NY, 11050
  • $3,250,000
    5 bd4 ba3,941 sqft Manhasset, NY
    5 bd4 ba3,941 sqft
    Manhasset, NY
    Sold 1 year ago
    Seller
    28 Valley Road, Manhasset, NY, 11030
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3
Sales last 12 months
200
Total sales
$784K-$4.1M
Price range
$1.8M
Average price

Get to know Rosemary O'Neill

Real Estate Salesperson

View My Website

Rosemary has successfully been practicing Real Estate since 1997, and has been recognized as a Top Producer for almost 20 consecutive years.

She specializes in residential sales, luxury homes, first time homebuyers and commercial property. Her personal knowledge of Manhasset and Port Washington also extends to the entire North Shore of Long Island, Garden City and Westhampton Beach area.

Born and raised in Manhasset, Ros...
Specialties
Buyer's AgentListing AgentRelocationProperty ManagementFirst Time HomebuyersLuxury Homes
SpeaksEnglish, Spanish
29 Years of experience
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Rosemary O'Neill's sales and listings (203)

This map and property list shows the most recent 100 sales and 100 listings

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Sold (200)

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For sale (2)

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For rent (1)

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Rosemary O'Neill's reviews (23)

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  • 5.0
    • 9/3/2026
    • • rlbnyc76

    Bought a Single Family home in 2026 in Valley stream, NY.

    Rosemary was an outstanding realtor throughout our home-buying journey. Her extensive network of trusted local contacts in Nassau County helped make the entire process sm...
    Rosemary was an outstanding realtor throughout our home-buying journey. Her extensive network of trusted local contacts in Nassau ...
    5.0
    • 11/18/2025
    • • esamuelramos

    Bought a Single Family home in 2024 in Sands point, NY.

    I had a fantastic experience working with Rosemary as my real estate agent. From the very beginning, she demonstrated an impressive knowledge of the local area, providing...
    I had a fantastic experience working with Rosemary as my real estate agent. From the very beginning, she demonstrated an impressiv...
  • 5.0
    • 11/15/2025
    • • Jonathan Feldman

    Bought a Single Family home in 2025 in Plandome, Manhasset, NY.

    Rosemary was a pleasure to work with. She acted professionally during my homebuying process, was very accessible and easy to communicate with. Her local market expertise ...
    Rosemary was a pleasure to work with. She acted professionally during my homebuying process, was very accessible and easy to commu...
    5.0
    • 11/9/2025
    • • amandarachelnowak

    Bought a home in 2025.

    Rosemary was instrumental in helping us purchase our first home, especially considering how unbelievably competitive the market was. Her knowledge of the areas we were se...
    Rosemary was instrumental in helping us purchase our first home, especially considering how unbelievably competitive the market wa...
  • 5.0
    • 9/13/2024
    • • Marzio Trotta

    Sold a Single Family home in 2024 in Plandome, Manhasset, NY.

    Rosemary was amazing to work with on our journey to sell our home that was in our family for 50 years. This is 3rd time we have worked with Rosemary over the last 25 yea...
    Rosemary was amazing to work with on our journey to sell our home that was in our family for 50 years. This is 3rd time we have w...
    5.0
    • 8/12/2024
    • • sdagasr

    Bought a Single Family home in 2023 in Munsey park, Manhasset, NY.

    Rosemary is a true professional who knows the Manhasset real estate market inside and out. Working with her was an absolute pleasure—her dedication, attention to detail, ...
    Rosemary is a true professional who knows the Manhasset real estate market inside and out. Working with her was an absolute pleasu...
  • 5.0
    • 1/28/2024
    • • sandrasevan

    Bought and sold a Single Family home in 2022 in Manhasset, NY.

    Rosemary is excellent to work with and extremely professional. She is diligent, responsive, has great people/communication skills, has lots of credibility with her peers...
    Rosemary is excellent to work with and extremely professional. She is diligent, responsive, has great people/communication skills...
    5.0
    • 1/31/2023
    • • butlermurphy

    Sold a home in 2022.

    Rosemary was wonderful to work with and a very dedicated professional. She responded to every question we had promptly and worked diligently. Rosemary was only a text or...
    Rosemary was wonderful to work with and a very dedicated professional. She responded to every question we had promptly and worked...
  • 5.0
    • 11/11/2022
    • • gettinghealthywithrobin

    Sold a Single Family home in 2022 in Great neck village, Great neck, NY.

    Selling your childhood home can be an emotional and challenging experience, but I knew I was in really good hands with Rosemary O'Neill from the very beginning. She was k...
    Selling your childhood home can be an emotional and challenging experience, but I knew I was in really good hands with Rosemary O'...
    5.0
    • 4/18/2022
    • • topsspin

    Bought a Condo home in 2021 in Riverhead, NY.

    I was very fortunate to have Rosemary O’Neill by my side during my recent home buying experience. She prepared me well during the search so that when I found the right pl...
    I was very fortunate to have Rosemary O’Neill by my side during my recent home buying experience. She prepared me well during the ...
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Rosemary O'Neill

Daniel Gale Sotheby's International Realty
5.023 reviews
3sales last 12 months
200total sales
$784K-$4.1Mprice range
$1.8Maverage price
29years of experience
(516) 578-3099
(516) 627-4440
rosemaryoneill@danielgale.com
364 Plandome Road
Manhasset, NY, 11030