4545 Cosmos Hill Road
Cortland, NY, 13045 $ 1,399,900
Bedrooms6 Baths3.1 Sq 3,244 Monthly Estimate*
$ 8,839
for $1,399,900 with 6 bedrooms and 3 full baths, 1 half bath. This 3,244 square foot home was built in 1991 on a lot size of 35.37.
Escape to a private country estate where timeless architecture, extraordinary craftsmanship, and resort-inspired amenities come together to create an exceptional lifestyle. Set on 35 acres, this remarkable property offers a level of privacy and tranquility rarely found within an easy drive of Syracuse, Skaneateles, and Ithaca. Originally transformed through an extensive renovation in 2017, the main residence offers over 4,000 square feet of beautifully designed living space. At its heart is a spectacular chef's kitchen featuring an expansive island, Sub-Zero refrigerator, Wolf range, granite countertops, farmhouse sink, and custom cabinetry. The dramatic two-story great room is anchored by a soaring stone fireplace and opens through a stunning Pella accordion door to an outdoor oasis designed for effortless entertaining. The backyard is nothing short of extraordinary. A stunning in-ground gunite pool, expansive patio and deck, and curated specimen gardens create an atmosphere that feels more like a private retreat than a residence. The main residence also includes a grand two-story foyer with a sweeping curved staircase, elegant formal living and dining rooms, four bedrooms, two-and-a-half baths, first-floor laundry, a finished lower level with wet bar, and an attached three-car garage. Adding exceptional versatility to the estate is a detached multi-car garage with a beautifully appointed 1,107 square foot carriage house residence above. Completely renovated in 2025, this private living space features a new kitchen, updated bathroom, great room with a view, two bedrooms, laundry, and a private deck overlooking the grounds. Ideal for extended family, guests, caregivers, an au pair, multigenerational living, or a sophisticated home office retreat, it offers complete independence while remaining seamlessly connected to the estate. An additional outbuilding enhances the property's functionality, providing generous space for storage, equipment, hobbies, or a private workshop. More than a home, this is a destination property—an opportunity to enjoy the peace and privacy of a secluded country retreat without sacrificing convenience.
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Single Family ActiveColonial,TwoStory,Transitional
FeaturesInteriorInterior Amenities SeparateFormalDiningRoom EntranceFoyer SeparateFormalLivingRoom GuestAccommodations GraniteCounters GreatRoom KitchenIsland KitchenFamilyRoomCombo SecondKitchen InLawFloorplan BathInPrimaryBedroom
Basement Full PartiallyFinished
Flooring CeramicTile Hardwood Varies
Total Fireplaces 1
Total Stories 2
Basement (Y/N) Yes
Air Conditioning Y/N Yes
Heating Y/N Yes
Fireplace Y/N Yes
Half Baths 1
Laundry Features MainLevel
Total Bedrooms 6
Main Level Bedrooms 0
Main Level Bathrooms 1
Total Baths 4
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GeneralSewer SepticTank
Heating Gas ForcedAir
Cooling CentralAir
Utilities WaterConnected
Possession CloseOfEscrow
Appliances BuiltInRefrigerator Dryer Dishwasher ExhaustFan Disposal GasOven GasRange GasWaterHeater Microwave RangeHood Washer
Garage Spaces 5.0
Patio/Porch Features Deck
Architectural Style Colonial TwoStory Transitional
Pool Features InGround
Construction Materials Frame Other Stone
School District Homer
Year Built 1991
Stories Count 2
Township Not Applicable
Levels Two
Property Subtype SingleFamilyResidence
County Cortland
Property Type Residential
Attached Garage Yes
Garage Y/N Yes
Other Structures Barns Outbuilding GarageApartment
Total Rooms 12
Full Baths 3
Status Active
Directions IMPORTANT: GPS can take you to the backside of the 35 acres. From Syracuse: 81 South to Exit 12 (Homer). At the light go right on S West St. Left on Cayuga St. (Rt 90). Left on Cosmos Hill Rd. House
City Cortland
Senior Community Y/N No
High School District Homer
Number Of Units Total 0
MLS Area Cortland-110200
Lot Size Units Acres
Lot Size Square Feet 1540717.0
Year Built Details Existing
Tax Annual Amount 22383.0
Property Condition Resale
Virtual Tour https://vimeo.com/1105222750?fl=pl&fe=sh
Standard Status Active
Middle/Junior School District Homer
Elementary School District Homer
Tax Assessed Value 492000
TaxOtherAnnualAssessmentAmount 0.0
Tax Lot 1
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ExteriorExterior Amenities BlacktopDriveway Deck Fence Pool
Fencing Partial
Parking Features Attached Garage GarageDoorOpener
Lot Features IrregularLot ResidentialLot
Water Source Connected Public
Lot Size Area 35.37
Foundation Details Block
Building Area Total 3244.0
Lot Size Acres 35.37
Waterfront Y/N No
Road Frontage Type CityStreet
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* Excluded FeaturesList ByHigh Falls Sotheby's International RealtyBroker
Affordability Calculator
- Monthly Principal & Interest
- $8,839
- Monthly Property Taxes
- $1,865
- Monthly Home Insurance
- --
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
Learn more about how to save NearbySingle family listings in Cortland, NY
Average List Price $333,760
Percent of Sale Price 76%
About Cortland, NY 18,890 Population
1% Since 2002
$ 43,233 Median Income
29.51 Median Age
24% Households with Children
Trends Information provided by ATTOM Data Solutions.
4376567 Elementary School
4376565 Middle School
Unknown High School High School
Pricing History| Date | Price | Price Change | Description |
|---|
| 7/13/2026 | $1,399,900 | | Listed Price |