Exceptional investment and development opportunity in the heart

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Lot For Sale

423 - C1 Halstead Ave

Mamaroneck, New York 10543

Westchester County

Community: 

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$1,175,000 0.149 acres

Exceptional investment and development opportunity in the heart of Mamaroneck! Located just one block from Metro North with direct access to NYC, this C-1 zoned property offers tremendous upside for investors, end-users, and developers alike. Set on a 6,475 SF lot with a FAR of 0.88, the property allows for up to approximately 5,698 buildable square feet, with additional potential under transit-oriented development incentives. Ideal for mixed-use redevelopment or expansion. Currently configured as a legal two-family property, featuring: two spacious 3-bedroom units with separate entrances, recently updated interiors with strong rental appeal, separate gas, electric meters and heating systems for each unit, oversized 2-car garage plus additional storage, perfect for immediate income generation while planning future development. Situated within walking distance to Mamaroneck Metro North, Harbor Island Park & Beach, and the vibrant Mamaroneck Avenue corridor filled with restaurants, shops, and entertainment. A rare opportunity combining location, income, and development potential in one of Westchester's most desirable and transit-oriented communities.

  • Lot Size: 0.149 acre
  • Lot Dimensions: 
  • View Types: 
  • Property Taxes: $17,788
  • MLS #: 981305
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Contact Information:
Beach Lot For Sale in Mamaroneck, New York
Listing Agent: Mary Stetson, Stetson Real Estate, LLC, 914-381-7173, 914-381-7173 Listing Site, Listing Status: Active
Copyright © 2026 OneKey MLS. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.
Ad Number: 7577617
Viewed 21 times.
Updated: May 03, 2026

This property is a Lot located at 423 - C1 Halstead Ave, Mamaroneck, New York 10543, and is currently For Sale at $1,175,000.