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MLS ID KEY1055441Last updated Oct 23, 2026

Stock Cooperative

138 Underhill Avenue #1A

Active · Harrison · Westchester County, NY 10604

Bedrooms
1 Bed
Bathrooms
1 Bath
Year built
1952
Property gallery0 / 8
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About this home

Welcome to 138 Underhill Ave. Unit 1A, a bright, sun-filled 800 sq. ft. 1-bedroom, 1-bath Park Knoll co-op in the heart of West Harrison. This charming, updated, unit has hardwood floors and crown molding throughout. Granite counters, a stone backsplash, and stainless steel appliances complete the kitchen. Enjoy summer at the community’s in-ground pool, with the town pool and Silver Lake Park nearby. Membership is also available at Harrison Meadows Country Club, the town-owned golf and tennis club. Laundry is in the basement of the building, and there is plenty of street parking out front. Downtown White Plains, shops, restaurants, the Metro-North train, and major highways are all close by. Move right in and enjoy!

Listing snapshot

Days on site
6 days
Listed on MLS
Oct 22, 2026
Full baths
1
Half baths
0
Area source (MLS)
Other
Listing brokerage
Julia B Fee Sothebys Int. Rlty
MLS ID
KEY1055441
Last updated
Oct 23, 2026

General features

Property type
Stock Cooperative
Year built
1952
Garage
No
Parking
On Street
Water source
Public
Sewer
Public Sewer
Utilities
Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Trash Collection Public, Water Connected

Interior features

Heating
Hot Water, Natural Gas
Cooling
Wall/Window Unit(s)
Interior
Ceiling Fan(s), Crown Molding, Galley Type Kitchen, Granite Counters
Appliances
Dishwasher, Microwave, Range, Refrigerator, Stainless Steel Appliance(s)
Flooring
Wood
Fireplace
No

Exterior features

Architectural style
Garden
Construction materials
Brick

Schools (MLS)

Elementary school
Samuel J Preston School
Elementary school district
Harrison
Middle school
Louis M Klein Middle School
Middle school district
Harrison
High school
Harrison High School
High school district
Harrison

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

Harrison · Westchester County, NY 10604Show interactive map
138 Underhill Avenue #1A

Harrison · Westchester County, NY 10604

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.