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    1 home
    1 home available
    PendingPrice Reduced $20,000
    423 Union Avenue, Mamaroneck, NY 10543
    $975,000
    5beds
    2bath
    sqft
    0.2acres
    Residential Income
    Down payment assistanceDown Payment Help

    423 Union Avenue, Mamaroneck, NY 10543

    Listing by: Houlihan Lawrence Inc.
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    Copyright © 2025 OneKey® MLS LLC
    Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
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    OneKey® MLS
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    423 Union Avenue, Mamaroneck, NY 10543
    Pending
    Price Reduced $20,000
    $975,000 $20,000 
    Down payment assistanceDown Payment Help
    5beds
    2full,half bath
    sqft
    0.2acres

    423 Union Avenue, Mamaroneck, NY 10543

    City/Town:Mamaroneck   Post Office: Mamaroneck     

    Residential Income by Emma PasqualiniHoulihan Lawrence Inc..

    Data checked -. Listing last updated 33 days ago.
    1. Overview
    2. Details
    3. More 

    This charming, fully renovated Colonial duplex is just one block from convenient transportation. The first unit features two bedrooms with hardwood floors, a modern kitchen, and a cozy enclosed sunroom. The second unit boasts three bedrooms plus three additional bonus rooms in the finished attic. Both units have separate entrances for added privacy. The property also includes a finished basement with a private entrance leading to the driveway, a generously sized flat yard, and ample parking with a long driveway and two garages. Taxes do not reflect any exemptions. Additional Information: ParkingFeatures:2 Car Attached,

    Details
      Property type
    Residential Income
      Year built
    1910
      Heating
    Natural Gas, Hot Water
      Cooling
    Wall/Window Unit(s)
      Total rooms
      Garage
    No
      City/Town
    Mamaroneck
      Post Office
    Mamaroneck
      Parking spots
    2
    H6327321
    MLS ID
    Pending
    Status
    09/11/2024
    On Market Date
      Laundry features
      Flooring
      Fireplace
    No
      Pets allowed
      Architectural Style
    Colonial
      View
    Interior features
    Master Downstairs, First Floor Bedroom, Pantry, Walk-In Closet(s)
    Exterior features
    Lot features
    Near Public Transit, Near School, Near Shops, Cul-De-Sac, Views, Level
    Appliances included
    Construction materials
    Frame, Aluminum Siding
    Monthly taxes
    $1,793
    Yearly taxes
    $21,512
    Community Features
    -
    School district
    Rye Neck
    Schools
    F E Bellows Elementary School, Rye Neck Middle School, Rye Neck Senior High School
    Senior community
    No
    Common Charges
    -
    Maintenance
    -
    Additional Fees
    -
    Open Houses
    In-Person
    No upcoming in-person open houses
    Virtual
    No upcoming virtual open houses
    Contact Agent
    Listing By:
    Emma Pasqualini
    Emma Pasqualini
    Emma Pasqualini
    Carmen J. Wilantowicz
    Emma Pasqualini
    Emma Pasqualini
    Associate Real Estate Broker, Houlihan Lawrence Inc.
    Direct Number 
     
    Emma Pasqualini
    Carmen J. Wilantowicz
    Real Estate Salesperson, Houlihan Lawrence Inc.
    Direct Number 
     
    Building Info
    Schools
    Elementary Schools
    Greenport Elementary School
    720 Front St, Greenport, NY 11944
    School Rating
    D+
    Grades
    PK-6
    Students
    318
    Teachers
    27.6
    Student to Teacher Ratio
    12:1
    Advanced Placement
    No
    Magnet School
    No
    Charter School
    No
    Middle Schools
    Greenport High School
    720 Front St, Greenport, NY 11944
    School Rating
    C+
    Grades
    7-12
    Students
    335
    Teachers
    34.1
    Student to Teacher Ratio
    10:1
    Advanced Placement
    Yes
    Magnet School
    No
    Charter School
    No
    High Schools
    Greenport High School
    720 Front St, Greenport, NY 11944
    School Rating
    C+
    Grades
    7-12
    Students
    335
    Teachers
    34.1
    Student to Teacher Ratio
    10:1
    Advanced Placement
    Yes
    Magnet School
    No
    Charter School
    No
    For properties located in the five boroughs of New York City, building data and tax history information is drawn from ACRIS records and is aggregated and provided by Cherre Inc. Buyer is responsible to verify all data presented.
    Demographics for 10543
    Population
    6,008
    Median age
    46.6
    Avg. household size
    2.3
    Avg. household income
    $150,966
    Households with children
    47.9%
    Households without children
    52.1%
    Employment
    Unemployment Rate
    5.8%
    Blue Collar
    37.0%
    White Collar
    57.3%
    Education
    Less than 9th grade
    6.6%
    Some high school
    3.9%
    High school graduate
    20.2%
    Some college
    19.3%
    Associate's degree
    8.0%
    Bachelor's degree
    25.0%
    Graduate degree
    16.9%
    For properties located in the five boroughs of New York City, building data and tax history information is drawn from ACRIS records and is aggregated and provided by Cherre Inc. Buyer is responsible to verify all data presented.
    Location
    GPS
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    Recently Sold
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    $998,500
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    500 Gagens Landing Road, Southold, NY 11971

    Listing by: Daniel Gale Sothebys Intl Rlty
    423 Union Avenue, Mamaroneck, NY 10543, is a 5 bedroom, 2 bathroom Duplex built in 1910. This property is currently available for sale and was listed on OneKey® MLS on 9-11-2024. The MLS# for this Duplex is MLS# H6327321.
    Display of MLS Data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and should investigate the data themselves or retain appropriate professionals.
    Copyright ©2025