1 / 8

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!
| Listed | October 22, 2026 |
| Days on Market | 1 |
| Last Updated | October 23, 2026 |
Full public sale/price history isn't available through our listing feed for this property.
Drag the sliders above to model your own purchase price, term, down payment, and rate — the numbers update live. For a precise breakdown, use our NYC Buyer Closing Cost Calculator and Commission Rebate Calculator.
Closed-sale data isn't available through our current listing feed for this neighborhood.




