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MLS ID KEY976893Last updated Apr 20, 2026

Single Family

399 Gregory Road

Active · Thompson · Sullivan County, NY 12701

Bedrooms
14 Beds
Bathrooms
17 Baths
Year built
1989
Est. monthly taxes
$2,604
Property gallery0 / 48
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About this home

399 Gregory Rd, Monticello, NY – A Private Estate Like No Other Set on 20 breathtaking acres in Monticello, this extraordinary nearly 18,000sf gated estate delivers an unmatched combination of scale, luxury, and privacy. Surrounded by a perfect blend of open land and natural beauty—including a picturesque stream and sweeping views—this property offers a rare sense of seclusion just minutes from the area’s top destinations. Ideally located near Monticello Motor Club, Resorts World Catskills, Kartrite Indoor Water Park, Monster Golf Course, Bethel Woods Center for the Arts, and the scenic Catskill Mountains, this estate combines tranquility with convenience and access to year-round attractions. Inside, the home is designed for both grand entertaining and everyday comfort. Amenities include a spectacular indoor pool, full bar, pizza oven, game room, private theater, gym, multiple fireplaces, sauna, and hot tub—creating a true resort-style experience. With 14+ bedrooms, this property has successfully hosted weddings, retreats, and large gatherings. Nearly every aspect of the home has been thoughtfully upgraded by the current owners. Improvements include a brand new dehumidifier and heater for the indoor pool, new heating and cooling systems, upgraded electric, low-voltage wiring, security cameras, and a brand-new high-capacity septic system. The estate also offers a fully equipped kitchen, a fully equipped game room, a detached garage, and a separate, private suite on the upper level. The entire property is fully winterized and move-in ready. Zoned RR2, this estate presents exceptional flexibility and investment potential. With planning board approval, it is well-suited for use as a retreat center, summer camp, or event venue. A discerning buyer can enjoy this home as a private luxury escape while also generating substantial income through rentals, weddings, and organizational use throughout the year. This is truly a property that must be experienced in person to fully appreciate the scale, craftsmanship, and atmosphere it offers—photos simply don’t capture the full picture of what this mansion entails. A rare opportunity for the buyer who values privacy, prestige, and potential—this is more than a home, it’s a legacy estate. Reach out today to schedule your private tour.

Listing snapshot

Days on site
59 days
Listed on MLS
Apr 19, 2026
Full baths
12
Half baths
5
Annual property tax (MLS)
$31,248
Tax year
2026
Area source (MLS)
Plans
Listing brokerage
Catskills Home Services
MLS ID
KEY976893
Last updated
Apr 20, 2026

General features

Property type
Single Family
Property subtype
Single Family Residence
Year built
1989
Garage
Yes
Garage spaces
2
Total parking
20
Parking
Covered, Driveway, Garage, Parking Lot
Water source
Well
Sewer
Septic Tank
Utilities
Electricity Connected

Interior features

Basement
Partial, Storage Space, Unfinished
Heating
Forced Air
Cooling
Central Air
Interior
Chandelier, Entrance Foyer, Granite Counters, High Ceilings, High Speed Internet, Primary Bathroom, Open Kitchen, Sound System, Storage
Appliances
Dishwasher, Dryer, Exhaust Fan, Freezer, Gas Oven, Oven, Refrigerator, Washer, Tankless Water Heater
Flooring
Carpet, Ceramic Tile, Hardwood, Vinyl
Fireplace
Yes
Fireplaces
2

Exterior features

Architectural style
Estate
Construction materials
Stone
Exterior
Fire Pit, Gas Grill, Lighting, Mailbox, Playground
Private pool
Yes

Schools (MLS)

Elementary school
George L Cooke School
Elementary school district
Monticello
Middle school
Robert J Kaiser Middle School
Middle school district
Monticello
High school
Monticello High School
High school district
Monticello

School information is provided by the MLS. Confirm attendance eligibility with the school district.

Recent activity

  1. First seen on this site
  2. Listing updated from MLS
  3. MLS status changed

Location

Thompson · Sullivan County, NY 12701Show interactive map
399 Gregory Road

Thompson · Sullivan County, NY 12701

Google Maps directions

Estimate monthly payment

Loan detailsFixed-rate, fully amortizing loan. Edit the assumptions below; no market rate is supplied.
Property expenses (USD)
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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.