Date
Details
Price
Change
Source
9/22/2026
Listed
$3,400,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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$3,400,000 Just Listed
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Property Description
The result of a masterfully executed, comprehensive transformation, this property functions as a virtually new, private modern estate in the heart of Frontenac within the Ladue School District. With architectural and design contributions from Space Architects, Palermo Group, and Pooltron, alongside custom execution by Artizan Builders, the property reflects an exceptional standard of craftsmanship, sophisticated entertaining, and seamless indoor-outdoor living. Positioned at a premium elevation within the neighborhood yet engineered for effortless single-level living, the estate offers 6,499 square feet of finished main-level interiors between the 4,690-square-foot primary residence and the 1,809-square-foot pool house. More than 5,500 square feet of finished outdoor living space-including the expansive open-air terraces and the custom gunite pool-extend directly beyond, establishing an extraordinary 12,000-square-foot continuous entertaining environment across a single main-level footprint-with the scale, privacy, and amenities of a private resort. Defined by an uncompromising level of investment, virtually every surface, system, and architectural detail has been executed to an extraordinary standard. An extensive collection of custom appointments, curated materials, and highly considered design elements underscores the remarkable depth of this investment. Far beyond a conventional renovation, this is a comprehensive reinvention of the property-an exceptionally rare, move-in-ready modern compound offering a caliber of design, construction, and resort-level living seldom available in Frontenac's premier corridor.
Full Property Details
Full Property Details for 522 Tregaron Pl
General
- Price: $3,400,000
- Taxes: $13,514 (2025)
- Status: Active
- Type: Single Family
- Source: MARIS
- MLS ID: 26052654
- Updated: 9/23/2026
- Added to Site: 2 day(s) ago
Interior
- Number of Rooms: 11
- Interior Features: Beamed Ceilings, Bookcases, Built-in Features, Chandelier, Custom Cabinetry, Double Vanity, Entrance Foyer, High Speed Internet, Kitchen Island, Open Floorplan, Recessed Lighting, Sauna, Separate Dining, Separate Shower, Smart Home, Solid Surface Countertop(s), Special Millwork, Walk-In Closet(s), Wet Bar, Wired for Sound
- Fireplace: Yes
- Number of Fireplaces: 5
- Fireplace(s): Basement, Den, Living Room, Outside, Master Bedroom
- Appliances: Stainless Steel Appliance(s), Gas Cooktop, Dishwasher, Disposal, Freezer, Microwave, Double Oven, Refrigerator, Wall Oven, Warming Drawer, Gas Water Heater, Wine Refrigerator, Bar Fridge
Rooms
Bathrooms
- Total Bathrooms: 5
- Full Bathrooms: 4
- Half Bathrooms: 1
- Main Floor Baths: 4
Bedrooms
- Total Bedrooms: 4
- Bedrooms Main & Up: 4
Parking
- Garage: Yes
- Attached garage: Yes
- Garage Spaces: 3
- Parking Features: Additional Parking, Circular Driveway, Driveway, Electric Vehicle Charging Station(s), Garage Door Opener, Garage Faces Side, Heated Garage, Lighted, Oversized, Storage, Workshop in Garage
Location
- Area: 151 - Ladue
- County: St. Louis
- Township: Frontenac
- Subdivision: Tregaron
- Cross Streets: Geyer Road
School Information
- High School District: Ladue
- Elementary School: Conway Elem.
- Middle School: Ladue Middle
- High School: Ladue Horton Watkins High
Heating & Cooling
- Cooling Type: Central Air Conditioning, Zoned
- Heating Type: Electronic Air Filter, Forced Air, Natural Gas, Zoned
Utilities
- Sewer: Public Sewer
- Water: Public
- Utility Description: Cable Connected, Electricity Connected, Natural Gas Connected, Sewer Connected, Water Connected
Structural Information
- Architectural Style: Contemporary, Modern, Ranch
- Basement: Yes
- Basement Desc.: Bathroom, Concrete, Egress Window, Storage Space, Sump Pump, Walk-Out Access
- Roof: Architectural Shingle
- Square Feet: 6,165
- Year Built: 1966
Additional Structures
- Other Structures: Pool House
Lot Features
- Lot Size (Acres): 1.011
- Lot Size (Sq. Ft.): 44,039.16
- Lot Size Source: Public Records
- Lot Dimensions: 165 x 267
- Lot Features: Back Yard, Front Yard, Landscaped, Level, Rectangular Lot, Sprinklers In Front, Sprinklers In Rear
Financial Considerations
- Tax Amount: $13,514
- Tax Year: 2025
Disclosures and Reports
- Ownership: Private
- Special Conditions: Standard
- Documents Avail.: Aerial Photos, Survey
- Disclosures/Reports: Flood Plain No, Seller Property Disclosure
- Property ID: 20N-33-0328
Listed by Dielmann Sotheby's International Realty
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Listing agent
— 522 Tregaron Pl —
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Schools
Schools serving 522 Tregaron Pl
School District:Ladue School District
| Name | Grades | Distance |
|---|---|---|
Conway Elementary School 9900 Conway Rd, St. Louis, MO 63124 | K-4 | 1.6 mi |
Ladue Middle School 9701 Conway Rd, St. Louis, MO 63124 | 6-8 | 1.9 mi |
Ladue Horton Watkins High School 1201 S Warson Rd, St. Louis, MO 63124 | 9-12 | 1.4 mi |
Disclaimer:
School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 522 Tregaron Pl
Tax History
Tax History for 522 Tregaron Pl
Year
Property Taxes
Change
Tax Assessment
Change
2024
$13,977
—
$204,440
—
2023
$13,961
-7%
$204,440
-3%
2022
$14,944
—
$210,880
—
2021
$14,885
—
$210,880
1%
2021
$14,885
11%
$209,670
—
2019
$13,460
16%
$209,670
26%
2018
$11,626
7%
$167,020
7%
2017
$10,827
-9%
$156,130
-5%
2016
$11,844
5%
$165,170
—
2015
$11,277
1%
$165,170
4%
2014
$11,209
2%
$158,710
—
2013
$11,000
—
$158,710
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 522 Tregaron Pl
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522 Tregaron Place, Frontenac, MO 63131 (MLS# 26052654) is a Single Family property with 4 bedrooms, 4 full bathrooms and 1 partial bathroom. 522 Tregaron Place is currently listed for $3,400,000 and was received on September 22, 2026. Want to learn more about 522 Tregaron Place? Do you have questions about finding other Single Family real estate for sale in Frontenac? You can browse all Frontenac real estate or contact a Coldwell Banker agent to request more information.