1224 Knickerbocker Avenue, Mamaroneck, NY 10543

• 4 beds |
• 3 baths |
• 3,112 sqft

Property Description

Sun-drenched Two-Family Colonial in the desirable Harbor Heights neighborhood, offering over 3,100 square feet of combined living space. This impeccably maintained and highly versatile property is ideal for owner-occupants or investors, providing flexible living options and excellent income potential. A charming covered front porch welcomes you into this pristine home. The main residence spans approximately 2,100 square feet across three levels and features three bedrooms and two full baths. The first floor offers an inviting entry with side staircase, a spacious living room with two seating areas, formal dining room, eat-in kitchen, family room, and full bath. The second level includes two bedrooms with spacious closets and a full hall bath, while the walk-up third floor provides a third bedroom along with generous attic storage. An unfinished walk-out basement offers laundry, mechanicals, and abundant storage space. Notable highlights include tall ceilings, charming original architectural details, numerous updated windows, freshly painted interiors, and a mix of original hardwood floors. A level backyard and oversized detached 2+ car garage complete the main home. With its own private ground-level entrance, the charming One-Bedroom Apartment offers approximately 1,010 square feet of living space. It features an entry foyer with closets, living room with engineered wood flooring, a spacious dine-in-kitchen with tile flooring, and an upstairs bedroom and full bath. Endless possibilities await with this layout—ideal for rental income, multi-generational living, or flexible use as an in-law suite, home office, studio, gym, or guest space. A rare opportunity in the highly regarded Mamaroneck School District. Don’t miss it!

Listing Status:

Active

Data Last Updated:

March 25, 2026 at 7:20AM

Listing Office:

Houlihan Lawrence Inc. : 914-833-0420

MLS ID:

948198

Interior

• General: First Floor Full BathChandelierCrown MoldingEat-in KitchenEntrance FoyerFormal DiningOriginal DetailsRecessed LightingWalk-In Closet(s)
• Laundry: In Basement
• Basement: UnfinishedWalk-Out Access
• Flooring: CarpetTile
• A/C: None
• Heating: Forced AirNatural GasOilSeparate Meters

Exterior

• Style: Colonial
• Other Structures: Garage(s)PorchPatioCovered
• Parking: DetachedDriveway

Construction

• Windows: BlindsDrapes

Location

• Originating MLS: onekey2
• School District: Mamaroneck
• County: Westchester County

Lot

• Zoning: 3203-008-000-00015-000-0766

Utilities

• Utilities: Electricity ConnectedSewer ConnectedTrash Collection PublicWater Connected
• Water: Public
• Sewer: Public Sewer

Financial

• Source: onekey2
• Exclusions: None