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MLS ID KEY1066603Last updated Oct 31, 2026

Stock Cooperative

21 North Chatsworth Avenue #7H

Active · Mamaroneck · Westchester County, NY 10538

Bedrooms
1 Bed
Bathrooms
1 Bath
Year built
1937
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About this home

Welcome to Stonecrest, a premier doorman building perfectly positioned for easy access to the local train station, vibrant restaurants, and eclectic shops. This cheerful top-floor penthouse end unit is a rare find, offering a sophisticated blend of space and light. The heart of the home is an inviting open-concept living and dining area, recently painted interior, where gleaming hardwood floors flow seamlessly under soaring ceilings accented by exposed beams. Large windows flood the space with natural light, creating a bright and airy atmosphere throughout the day. New custom EIK with Quartz counter tops, breakfast bar, enhanced with a herringbone stone flooring. Full , renovated new bath with dual sink vanity and Quartz countertops. Step outside onto your private balcony to experience the ultimate retreat. Being on the top floor provides unobstructed, panoramic views and a front-row seat to breathtaking sunsets. Whether you’re looking for a quiet spot to enjoy your morning coffee or a stylish space to entertain, this residence offers a unique opportunity to own a truly standout property. This building offers a charming lobby , lovely outdoor courtyard, common laundry room and storage.

Listing snapshot

Days on site
3 days
Listed on MLS
Oct 30, 2026
Full baths
1
Half baths
0
Area source (MLS)
Public Records
Listing brokerage
Coldwell Banker Realty
MLS ID
KEY1066603
Last updated
Oct 31, 2026

General features

Property type
Stock Cooperative
Year built
1937
Garage
No
Parking
On Street
Water source
Public
Sewer
Public Sewer
Utilities
Trash Collection Public

Interior features

Heating
Natural Gas
Cooling
Wall/Window Unit(s)
Interior
First Floor Bedroom
Appliances
Dishwasher, Gas Cooktop, Gas Oven, Microwave, Refrigerator, Tankless Water Heater, Wine Refrigerator
Flooring
Hardwood
Fireplace
No
Fireplaces
0

Exterior features

Architectural style
Mid Rise
Construction materials
Brick

Schools (MLS)

Elementary school
Murray Avenue
Elementary school district
Mamaroneck
Middle school
Hommocks School
Middle school district
Mamaroneck
High school
Mamaroneck High School
High school district
Mamaroneck

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. Listing updated from MLS
  2. First seen on this site
  3. MLS status changed

Location

Mamaroneck · Westchester County, NY 10538Show interactive map
21 North Chatsworth Avenue #7H

Mamaroneck · Westchester County, NY 10538

Google Maps directions

Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
MLS amounts are prefilled when available and can be edited. Confirm what fees include. Unknown fee frequencies cannot be converted automatically.Property expenses: MLS values where available; missing values stay blank.

Estimated monthly principal & interest—

Monthly property taxNot provided

Monthly association / maintenance feesNot provided

Estimated monthly total of entered costs—

Excludes insurance, mortgage insurance, special assessments and lender fees. MLS taxes may reflect abatements or exemptions and can change.

Listing data is supplied by the MLS and may change without notice.