189 ONYX Court
St. Augustine, FL 32086
MLS# 2142854
5 beds | 4 baths | 3673 sqft
Open House (05/02/2026 - 12:00 pm - 2:00 pm)
Property DescriptionWelcome to life on one of the coolest cul-de-sacs in Treaty Oaks -- where neighbors gather, block parties happen, and community feels effortless.
Tucked away on a quiet street and backing directly to a peaceful preserve, this home offers a rare combination of privacy, space, and connection in the only St. Augustine community that offers a private entrance directly into all the incredible amenities of Treaty Park.
Built in 2019, this thoughtfully designed 5-bedroom + office/flex room, 3.5-bath home offers a layout that truly works for the way people live today. The main level is both functional and inviting, featuring a versatile flex room at the front of the home - currently offered as an office but is also a conforming sixth bedroom or guest space if needed. A separate formal dining room provides the perfect setting for hosting holidays and special gatherings, while still maintaining a sense of privacy from the main living areas.
Property Attached YN: No
Current Price: $565,000
Property Sub Type: Single Family Residence
Status: Active
List Price: $565,000
Listing Contract Date: 2026-04-29
Country: US
Parcel Number: 1361411460
Tax Annual Amount: 4083.68
Tax Year: 2025
Tax Legal Description: 88/33-38 TREATY OAKS PHASE 1 UNITS 3 AND 4 LOT 146
Elementary School: Otis A. Mason
Middle School: Gamble Rogers
High School: Pedro Menendez
Lot Size Acres: 0.19
Bathrooms Half: 1
Living Area: 2753
Living Area Source: Public Records
Building Area Total: 3673
CDD Fee YN: No
Accessory Dwelling Unit Y/N: No
Association YN: Yes
Homestead YN: Yes
Association Fee: 770
Association Fee Frequency: Annually
Waterfront YN: No
Senior Community YN: No
Direction Faces: West
Directions: I95 to exit 311. Head north on SR-207 for approx 1.2 miles and make right onto Brinkhoff Road. Make first right onto Aventurine Avenue into Treaty Oaks community. Turn left onto Sandstone Drive. Turn right onto Onyx Court. The home will be on the left near the end of the cul-de-sac.
Public Remarks: Welcome to life on one of the coolest cul-de-sacs in Treaty Oaks -- where neighbors gather, block parties happen, and community feels effortless.
Tucked away on a quiet street and backing directly to a peaceful preserve, this home offers a rare combination of privacy, space, and connection in the only St. Augustine community that offers a private entrance directly into all the incredible amenities of Treaty Park.
Built in 2019, this thoughtfully designed 5-bedroom + office/flex room, 3.5-bath home offers a layout that truly works for the way people live today. The main level is both functional and inviting, featuring a versatile flex room at the front of the home - currently offered as an office but is also a conforming sixth bedroom or guest space if needed. A separate formal dining room provides the perfect setting for hosting holidays and special gatherings, while still maintaining a sense of privacy from the main living areas.
Accessibility Features YN: No
New Construction YN: No
Garage YN: Yes
Garage Spaces: 2
Carport YN: No
Pool Private YN: No
Water Body Access YN: No
Stories: 2
Entry Level: 1
List Price/SqFt: 205.23
Bedrooms Total: 5
Bathrooms Full: 3
Bathrooms Total: 4
Year Built: 2019
Electric Cooktop: 1
Electric Oven: 1
Clubhouse: 1
Fitness Center: 1
Central Air: 1
Electric: 1
Residential: 1
Single Family: 1
Fireplaces Total: 1
Wood Burning: 1
Electric Dryer Hookup: 1
In Unit: 1
Lower Level: 1
Washer Hookup: 1
Cul-De-Sac: 1
Dead End Street: 1
Sprinklers In Front: 1
Sprinklers In Rear: 1
Garage: 1
Garage Door Opener: 1
Electricity Connected: 1
Sewer Connected: 1
Protected Preserve: 1
Trees/Woods: 1
Street Lights: 1
Suburban: 1
Breakfast Bar: 1
Breakfast Nook: 1
Ceiling Fan(s): 1
Eat-in Kitchen: 1
Guest Suite: 1
Kitchen Island: 1
Open Floorplan: 1
Pantry: 1
Primary Bathroom -Tub with Separate Shower: 1
Primary Downstairs: 1
Split Bedrooms: 1
Walk-In Closet(s): 1
Bathroom 2: 1
Bathroom 2 Level: First
Bathroom 3: 1
Bathroom 3 Level: Second
Bathroom 4: 1
Bathroom 4 Level: Second
Bedroom 2: 1
Bedroom 2 Level: Second
Bedroom 3: 1
Bedroom 3 Level: Second
Bedroom 4: 1
Bedroom 4 Level: Second
Bedroom 5: 1
Bedroom 5 Level: Second
Dining Room: 1
Dining Room Level: First
Laundry: 1
Laundry Level: First
Primary Bathroom: 1
Primary Bathroom Level: First
Primary Bedroom: 1
Primary Bedroom Level: First
Street Number: 189
Street Name: ONYX
Street Suffix: Court
County: St. Johns
State: FL
Postal Code: 32086
MLS Area Major: 337-Old Moultrie Rd/Wildwood
Subdivision Name: Treaty Oaks
Major Change Timestamp: 2026-05-01T02:46:07Z
Major Change Type: New Listing
Architectural Style: Traditional
Rental Restrictions: 1 Year
Appliances: Dishwasher; Disposal; Double Oven; Dryer; Electric Cooktop; Electric Oven; Ice Maker; Microwave; Refrigerator; Washer
Fireplace Features: Wood Burning
Interior Features: Breakfast Bar; Breakfast Nook; Ceiling Fan(s); Eat-in Kitchen; Guest Suite; Kitchen Island; Open Floorplan; Pantry; Primary Bathroom -Tub with Separate Shower; Primary Downstairs; Split Bedrooms; Walk-In Closet(s)
Laundry Features: Electric Dryer Hookup; In Unit; Lower Level; Washer Hookup
Utilities: Electricity Connected; Sewer Connected; Water Connected
Cooling: Central Air; Electric
Heating: Central; Electric
Security Features: Smoke Detector(s)
Construction Materials: Fiber Cement
Patio And Porch Features: Covered; Front Porch; Rear Porch; Screened
Parking Features: Garage; Garage Door Opener
Lot Features: Cul-De-Sac; Dead End Street; Sprinklers In Front; Sprinklers In Rear
View: Protected Preserve; Trees/Woods
Fencing: Back Yard; Fenced; Privacy; Vinyl; Other
Current Use: Residential; Single Family
Association Amenities: Clubhouse; Fitness Center; Park; Playground; Pool
Community Features: Curbs; Sidewalks; Street Lights; Suburban
Road Frontage Type: County Road
Road Surface Type: Asphalt
Possession: Close Of Escrow
Listing Terms: Cash; Conventional; FHA; VA Loan
Room Types: Bathroom 2; Bathroom 3; Bathroom 4; Bedroom 2; Bedroom 3; Bedroom 4; Bedroom 5; Dining Room; Laundry; Primary Bathroom; Primary Bedroom
At the heart of the home, the open-concept kitchen and living space come together beautifully--designed for connection, comfort, and everyday moments. The kitchen features a large center island, farmhouse sink, and plenty of room to gather, all flowing seamlessly into the living room where a cozy fireplace creates a warm and welcoming focal point. Sliding doors lead directly out to the expansive screened lanai, extending your living space outdoors and making it easy to enjoy everything from quiet mornings to lively evenings with friends and family.
The primary suite is conveniently located on the first floor, creating a private retreat with a free-standing soaking tub, walk-in shower, large walk-in closet, and a spacious, comfortable layout overlooking the private backyard.
Upstairs, you'll find four additional bedrooms and two full bathrooms, including a bedroom with a private en-suite bath, offering flexibility for guests and literally built for multi-generational living.
Step outside to your expansive screened lanai (approx. 40' x 10')--an ideal extension of your living space. Already equipped with a TV mount, it's the perfect setting for morning coffee, evening wind-downs, or weekend gatherings while enjoying uninterrupted preserve views. The fully fenced backyard adds both function, privacy, and peace of mind.
Beyond the home, Treaty Oaks offers a lifestyle that's hard to beat, with access to community amenities including a pool, fitness center, playground, and a private gated entrance into Treaty Park, where walking/running trails, pickleball courts, a dog park, skate park, and outdoor recreation are just moments away.
With a 2-car garage, easy access to I-95, and a short drive to the beaches and historic downtown St. Augustine, this home brings together location, lifestyle, and livability. This truly is not one to miss - this is the lifestyle upgrade you deserve. Schedule your showing today!
| Room Name | Level | Remarks |
| Primary Bedroom | First | |
| Primary Bathroom | First | |
| Dining Room | First | |
| Laundry | First | |
| Bathroom 2 | First | First Floor Half Bath |
| Bedroom 2 | Second | |
| Bathroom 3 | Second | |
| Bedroom 3 | Second | |
| Bedroom 4 | Second | |
| Bedroom 5 | Second | |
| Bathroom 4 | Second | |
Listing Office: KELLER WILLIAMS REALTY ATLANTIC PARTNERS ST. AUGUSTINE
Last Updated: May - 01 - 2026
Information deemed reliable but not guaranteed.