Welcome to Treetops. A long private driveway passing a large pond sets the scene for this impressive hilltop retreat with 6,000 square feet across three levels and seasonal views of the Taconic Hills. Built with wood hewn from trees on the property, including the distinctive stairway, the home offers a huge open-plan main level ideal for gatherings, along with an indoor pool, hot tub, sauna and a dramatic two-story primary suite. Five bedrooms and five baths provide ample space for guests, with additional bedrooms on the upper and lower levels plus a family room downstairs. A second home may be built on a conserved, included, second parcel. Expansive decks, a three-car garage, sold fully furnished, and abutting the Appalachian Trail conservation lands complete the offering.

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Based on information submitted to BCMLS as of May 28, 2026 . All data is obtained from various sources and has not been, and will not be, verified by broker or BCMLS. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information. NOTICE: Many homes contain recording devices, and buyers should be aware they may be recorded during a showing.

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Property Details of 89 Undermountain Road

Property Details

Basic Information

Building

Location

Water

Interior Features

Bedrooms

Bathrooms

Basement

Utilities and Appliances

Utilities and Appliances

Community

Schools

Map Location

Driving Directions

Hi there! How can we help you?

Hi there! How can we help you?

Hi there! How can we help you?

Alton & Westall Real Estate Agency