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1139 State Route 17b, 
Mongaup Valley, NY 12762

$299,000

5

Beds

3

Baths

1,530

Sq Ft

Single Family

Active

Listed by

Donna A Reese

Keller Williams Hudson Valley

Last updated:

January 10, 2026, 12:28 PM

MLS#

815382

Source:

OneKey MLS

About This Home

1139 State Route 17b

Spacious 5-bedroom home located in beautiful Sullivan County, NY. This inviting property features hardwood floors throughout, a large kitchen with sliding glass doors that open to the back deck, and a cozy breakfast nook perfect for your morning gatherings. With 3 full bathrooms, there’s room for everyone to live comfortably. Enjoy your coffee on the private deck off the Primary bedroom overlooking the peaceful yard. The expansive outdoor space is ideal for entertaining family and friends. Close to Forest Reserve Park, Toronto Reservoir, Bethel Woods Performing Arts Center, White Lake with its lakefront restaurants, Lake Superior, and just minutes to Kartrite Water Park, Resorts World Hotel & Casino, I-86, and the PA border for easy commuting and recreation.

Home Facts

Single Family

3 Baths

5 Bedrooms

Built in 1910

Price Summary

299,000

$195 per Sq. Ft.

MLS #:

815382

Last Updated:

January 10, 2026, 12:28 PM

Added:

6 month(s) ago

Rooms & Interior

Bedrooms

Total Bedrooms:

5

Bathrooms

Total Bathrooms:

3

Full Bathrooms:

3

Interior

Living Area:

1,530 Sq. Ft.

Structure

Structure

Architectural Style:

Farmhouse

Building Area:

1,530 Sq. Ft.

Year Built:

1910

Lot

Lot Size (Sq. Ft):

33,078

Finances & Disclosures

Finances

Price:

$299,000

Price per Sq. Ft:

$195 per Sq. Ft.

Source:OneKey MLS
Copyright 2026 OneKey MLS. All rights reserved. Listings courtesy of OneKey MLS as distributed by MLS GRID . OneKey MLS provides content displayed here (“provided content”) on an “as is” basis and makes no representations or warranties regarding the provided content, including, but not limited to those of non-infringement, timeliness, accuracy, or completeness. Individuals and companies using information presented are responsible for verification and validation of information they utilize and present to their customers and clients. OneKey MLS will not be liable for any damage or loss resulting from use of the provided content or the products available through Portals, IDX, VOW, and/or Syndication. Recipients of this information shall not resell, redistribute, reproduce, modify, or otherwise copy any portion thereof without the expressed written consent of OneKey MLS.

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Contact an Agent

Yes, I would like more information. Please use and/or share my information with a Coldwell Banker ® affiliated agent to contact me about my real estate needs. By clicking Contact, I request to be contacted by phone or text message and consent to being contacted by automated means. I understand that my consent to receive calls or texts is not a condition of purchasing any property, goods, or services. Alternatively, I understand that I can access real estate services by email or I can contact the agent myself.

If a Coldwell Banker affiliated agent is not available in the area where I need assistance, I agree to be contacted by a real estate agent affiliated with another brand owned or licensed by Anywhere Real Estate (BHGRE®, CENTURY 21®, Corcoran®, ERA®, or Sotheby's International Realty®). I acknowledge that I have read and agree to the terms of use and privacy notice.