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Back 18 RT-139
Off Market

18 RT-139

Katonah NY 10536

4
3
2
2452 sq. ft.
86249 sq. ft.
Single-Family
Last sold for $833,400
Mark BoylandMark Boyland, last sold this property on 10 November 2025 after 123 days on market.

Overview

A distinguished Colonial nestled on nearly two level scenic acres, where a peaceful garden sanctuary awaits. This lovingly maintained 4-bedroom, 2.5-bath Colonial offers timeless design, modern conveniences, and a deep connection to nature. Inside, discover an oversized living room, formal dining area, an updated kitchen with granite counters, stainless steel appliances, and a sunlit breakfast nook framed by a bay window, and updated bathrooms. The cozy family room with a fireplace and adjacent laundry area enhance everyday comfort. Upstairs, the primary bedroom offers two walk-in closets, and the en-suite bath features radiant heated floors for a spa-like experience. Three additional bedrooms and a full hall bath complete this level The walk-out basement provides incredible flexibility for your lifestyle with direct access to the backyard. A spacious driveway and an elegant stone wall boost both curb appeal and function. Step outside to discover your own private Eden: a multi-level deck and patio overlook a beautifully landscaped lawn, a flourishing vegetable garden, and a curated seasonal flower garden, all nurtured with care over the past two decades. Whether you're harvesting fresh produce or enjoying the changing blooms from spring tulips to fall roses of Sharon, this yard is more than landscaped it's a lifestyle. Located minutes from parks, shopping, and major roadways, this home blends enduring character with everyday ease. New Boiler, Air Handler and Heat Pump 2025

Features

4 bedrooms
3 bathrooms
2 carspaces
2 garage spaces
2452 sq. ft. floor area
86249 sq. ft. lot size
Single-Family

Estimated Value

Based on this property and similar 4 bedroom single-family properties sold in Katonah over the last 12 months, the estimated median property value of 18 RT-139 is $1.3m.

Median value
$1.3m
Estimated value range
$750k - $2.83m
Median days on market
21
Estimated value trend
3%
increase over the last 12 months
Average days on market is based on recent, comparable sales in Katonah. It is only an indication of the time a property is actively listed and should not be relied upon as an accurate representation of how soon a property will be sold.

Property history for 18 RT-139

2025
Sold
$833,400
10 Nov 2025 by Mark Boyland, of Keller Williams Realty Partner

Happy sellers in Katonah

~%

We have insufficient information to provide an overview of customer satisfaction for Katonah. Viewing the agent profiles, reviews and sales for Katonah can provide insights for this location.

Local market activity for 4 bedroom single-family properties in Katonah

In the last 12 months, 43 four-bedroom single-family properties similar to 18 RT-139, have been sold.

This represents a 24% increase in four-bedroom single-family properties sales when compared to the previous 12 months.

Nearby agents

Compare and contact these top performing agents who’ve delivered exception customer service for their clients in Katonah

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Edward Holmes

Edward Holmes is a recommended agent for Katonah.  They have 1 local sale and collected 1 local review across the last 12 months.

  •   5   (9 reviews)
  •  1 Review in Katonah
  •  1 Sale in Katonah
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Lynn Harmonay

Sellers who recommend Lynn Harmonay have praised them for being local expert, responsive, detail-oriented, empathetic, dedicated, strategic, and clear communication

  •   5   (38 reviews)
  •  1 Review in Katonah
View profile
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Julia Brasesco

Julia Brasesco is a recommended agent for Katonah.  They have collected 1 local review across the last 12 months.

  •   5   (14 reviews)
  •  1 Review in Katonah
View profile
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Hope Ross Mazzola

Hope Ross Mazzola is a recommended agent for Katonah.  They have 5 local sales across the last 12 months.

  •  5 Sales in Katonah
View profile
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