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St. Johns 32086
189 ONYX Court
$555,000
● House - Off Market

189 ONYX Court

St. Augustine, FL 32086
bedrooms
5 Beds
bathrooms
3 Baths, 1 Half Bath
square feet
2,753 Ft²
$3,179
Est. Monthly
$64
HOA / Fees

About This Property

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. 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!
Unit Size
2,753 Ft²
Days on Market
56 days
Land Size
0.19 acres
Price per sqft
$205
Property Type
House
Property Taxes
$340
HOA Dues
$64
Year Built
2019

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Last updated: 4 months ago (Real MLS #2142854)

Price History

Date / Event Date Event Price
Jun 26, 2026 Sold
Sold
May 12, 2026 In contract -
In contract
Apr 29, 2026 Listed by KELLER WILLIAMS REALTY ATLANTIC PARTNERS ST. AUGUSTINE $565,000
Listed by KELLER WILLIAMS REALTY ATLANTIC PARTNERS ST. AUGUSTINE
Apr 1, 2019 Sold
Sold

Property Highlights

Garage
Air Conditioning
Fireplace

Building Info

Overview

    General

  • Year Built: 2019
  • Effective Year Built: 2019
  • Building Count: 1
  • Bedroom Count: 5
  • Bathroom Count: 4
  • Full Bathrooms: 3
  • Partial Bathrooms: 4
  • Bathroom Plumbing Fixtures: 16
  • Building Condition: 7
  • Building Quality: 4
  • Construction Type: 17
  • Building Style: 0
  • Exterior Walls Type: 6
  • Interior Walls Type: 3
  • Roof Shape Type: 7
  • Roof Cover Type: 3
  • Floor Count: 200
  • Floor Cover: 9
  • Basement Type: 0
  • Basement Area: 0
  • Garage Type: 1
  • Garage Square Area: 420
  • Parking Space Count: 2
  • Patio Type: 0
  • Porch Type: 126
  • Pool Type: 0

    Dimensions

  • Lot Size Square Feet: 8,276
  • Total Building Area: 3,173
  • Gross Building Area: 3,173
  • Building Area: 2,753
  • Building Area Measurement: L

    Heating and Cooling

  • Air Conditioning: 1
  • Heating: 4
  • Heated Square Feet: 2,753
  • Heating Fuel Type: 0

    Utilities

  • Sewer System: 0
  • Water Service: 0

Building

  • Building Type: 0
  • Property Class: R
  • Subdivision: TREATY OAKS PHASE 1 UNITS 3 AND 4
  • Land Acres: 0000000190
  • Standard Land Use Code: 1001
  • County Land Use Code: 0100
  • Legal Description 1: 88/33-38 TREATY OAKS PHASE 1 UNITS 3 AND 4 LOT 146 OR4702/90

Neighborhood

  • School District Name: St. Johns County School District
  • Census Tract: 021207

Geography

  • Assessors Map Reference: 146B
  • Subdivision Phase Number: 1
  • Parcel: 136141-1460
  • Block: 1
  • Lot: 146
  • Meridian: SEC 03 TWN 08S RNG 29E
  • Municipality: COUNTY
  • Latitude: 29.8294
  • Longitude: -81.3633

    Address

  • Full Address: 189 Onyx Ct
  • Legal Unit: 3
  • Address - House Number: 189
  • Address - Street Name: Onyx
  • Address - Suffix Type: Ct
  • State: FL
  • City Name: Saint Augustine
  • Carrier Code: R056
  • 4-Digit Zip Code: 0365
  • Zip Code: 32086

Valuation

    Tax

  • Total Area: 3,113
  • Tax Year: 2022
  • Tax Amount: $345,114
  • Tax Rate Code Area: 300

    Appraisal Valuation

  • Standard Deviation: 0.1507
  • Valuation Date: Dec 20, 2023
  • Confidence Score: 81
  • Final Value: 560,182
  • High Value: 644,653
  • Low Value: 475,712

    Market Valuation

  • Market Total Value: $369,039
  • Market Land Value: $67,200
  • Market Improvement Value: $301,839

    Assessments Valuation

  • Assessed Year: 2022
  • Assessed Total Value: $290,515

    Exemptions

  • Homeowner Exemption: Yes

    Sales

  • Current Sale Contract Date: Mar 22, 2019
  • Current Sale Recording Date: Apr 01, 2019
  • Current Sale Price:
  • Current Sale Document Type: 68
  • Current Sale Input Document Number: 2019021718
Data used for valuation calculations is provided by RealtyHop, and other third party sources

Comparables

Unit
Status
Type
Beds
Baths
ft²
Price/ft²
Asking Price
Listed On
Closing Price
Sold On
HOA + Taxes

About St. Johns


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Frequently Asked Questions

When was property at 189 Onyx Court built and last sold?
The property at 189 Onyx Court was built in 2019 and last sold on Mar 22, 2019 for $318,000.
How much is this home worth?
The estimated value of the home located at 189 Onyx Court is $570,650.
What are some comparable homes to 189 Onyx Court?
There are currently no comparable homes to 189 Onyx Court.