Recently Listed Open House 9/19 1pm - 3pm
138 Knollwood Avenue
Mamaroneck, NY, 10543 $ 1,100,000
Bedrooms4 Baths3.0 Sq 2,030 Monthly Estimate*
$ 6,946
for $1,100,000 with 4 bedrooms and 3 full baths. This 2,030 square foot home was built in 1927 on a lot size of 0.2189.
Classic Tudor charm meets an easy, flexible layout in this character-filled Harbor Heights home. The main level is anchored by a dramatic living room with soaring cathedral ceilings, abundant natural light, and a wood-burning fireplace - the kind of space that immediately feels special. An adjoining dining area creates an easy flow for dinners and entertaining, while a separate den offers the perfect spot for a home office, cozy TV room, playroom, or reading lounge. Just off the dining room, the St. Charles kitchen features a sunny breakfast nook and full bath. A generous screened porch extends the living space outdoors and is ideal for morning coffee, summer dinners, or relaxed weekends at home. Direct access to the attached garage makes everyday life that much easier. Upstairs, the primary suite features a renovated ensuite bath and direct walk-up access to the attic, offering convenient additional storage. Three additional bedrooms and a full bath complete the second floor. Downstairs, the unfinished basement currently used for laundry, storage and as a workspace, could transform into a home gym or rec space. With its distinctive Tudor architecture, cathedral ceilings, fireplace, screened porch, and versatile spaces throughout, this is a home with the character that’s hard to recreate - and the opportunity to update in your own style is endless! Harbor Heights is a quiet, bike-riding neighborhood. Warren Park with playground, ball fields, tennis and pickleball is nearby, and train, school and town are nearby, too. Mamaroneck also enjoys Harbor Island Park on the sound with beach, boating, playground, bait shop, ball fields, dog park and numerous village events including concerts, fireworks, Sportime's clay tennis courts, pickleball courts, beach volleyball, softball and street parties. Enjoy!
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Open House
9/19/2026 1:00 PM - 3:00 PM
9/20/2026 1:00 PM - 3:00 PM
138 Knollwood Avenue Mamaroneck, NY
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm
FeaturesInteriorInterior Amenities First Floor Full Bath Beamed Ceilings Cathedral Ceiling(s) Eat-in Kitchen High Ceilings Pantry Washer/Dryer Hookup
Basement Unfinished
Flooring Carpet Hardwood
Total Fireplaces 1
Fireplace Features Wood Burning
Basement Features Unfinished
Basement (Y/N) Y
Window Features Double Pane Windows
Fireplace Y/N Y
Half Baths 0
Total Bedrooms 4
Total Baths 3
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GeneralSewer Public Sewer
Heating Natural Gas
Cooling Wall/Window Unit(s)
Utilities Trash Collection Public
Appliances Dishwasher Dryer Gas Oven Gas Range Refrigerator Washer
Garage Spaces 2
Patio/Porch Features Covered Porch Screened
Architectural Style Tudor
Construction Materials Brick Stucco
Year Built 1927
Property Subtype Single Family Residence
Tax Year 2025
Parcel Number 3203-008-000-00006-000-0451
County Westchester County
Property Type Residential
HOA N
Garage Y/N Y
Total Rooms 13
Full Baths 3
High School Mamaroneck High School
City Mamaroneck
Senior Community Y/N N
High School District Mamaroneck
Carport Y/N N
Elementary School Mamaroneck Avenue
Property Attached Y/N N
Tax Annual Amount 18506
Middle/Junior High School Hommocks School
Property Condition Actual
Building Area Units Square Feet
Standard Status Active
Middle/Junior School District Mamaroneck
Elementary School District Mamaroneck
Tax Assessed Value 844000
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ExteriorParking Features Driveway Garage Driveway Garage
Water Source Public
Total Parking 2
Parking Spaces 2
Building Area Total 2438
Waterfront Y/N N
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* Excluded FeaturesList ByMary StetsonListing Agent
Stetson Real EstateBroker
Affordability Calculator
- Monthly Principal & Interest
- $6,946
- Monthly Property Taxes
- $1,542
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Mamaroneck, NY
Average List Price $2,093,600
Percent of Sale Price 90%
About Mamaroneck, NY 30,187 Population
4% Since 2002
$ 120,494 Median Income
43.15 Median Age
38% Households with Children
Trends Information provided by ATTOM Data Solutions.
4892556 Elementary School
5162809 Middle School
Mamaroneck High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 9/13/2026 | $1,100,000 | | Listed Price |