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4 Beds
3 Baths
2,030 sqft

$1,100,000

138 Knollwood Avenue, Mamaroneck NY, 10543

Price per sqft$541.87
Built in1927
Property size2,030 sqft
Property typeResidential
Courtesy of Stetson Real Estate, Mary Stetson Listing Contact: 914-381-7173

Overview

Pending

Listed Sep 15, 2026

Updated 4 weeks ago

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!

$7,318/mo

Est. mortgage payment based on a $1,100,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
1044020

Interior Features

Bedrooms
4
Bathrooms
3
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
0.22 Acres

Other Property Details

Taxes
$18,506
Tax Frequency
Annually
Garage
Yes
55+/Senior Community
No

Listings courtesy of OneKey MLS as distributed by MLS GRID

All information deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) nor Jenny Jaffe shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Properties displayed may be listed or sold by various participants in the MLS.

Based on information submitted to the MLS GRID as of 3:10 AM UTC on 9/29/2026. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.

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