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.
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.
Property Details
Price:
$3,400,000
MLS #:
MIS26052654
Status:
Coming Soon
Beds:
4
Baths:
5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
Tregaron
Neighborhood:
151ladue
Listed Date:
Sep 15, 2026
Finished Sq Ft:
6,165
Lot Size:
44,039 sqft / 1.01 acres (approx)
Year Built:
1966
See this Listing
Schools
School District:
Ladue
Elementary School:
Conway Elem.
Middle School:
Ladue Middle
High School:
Ladue Horton Watkins High
Interior
Above Grade Finished Area
4690
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
Bathrooms
4 Full Bathrooms, 1 Half Bathroom
Below Grade Finished Area
1475
Cooling
Central Air, Zoned
Fireplaces Total
5
Flooring
Hardwood
Heating
Electronic Air Filter, Forced Air, Natural Gas, Zoned
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
Laundry Features
Laundry Room, Main Level
Levels
One
Main Level Bedrooms
4
Exterior
Architectural Style
Contemporary, Modern, Ranch
Attached Garage YN
1
Construction Materials
Brick, Spray Foam Insulation, Stone Veneer
Garage Spaces
3
Lot Features
Back Yard, Front Yard, Landscaped, Level, Rectangular Lot, Sprinklers In Front, Sprinklers In Rear
Other Structures
Pool House
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
Patio And Porch Features
Awning(s), Covered, Front Porch, Patio, Side Porch
Roof
Architectural Shingle
Security Features
Carbon Monoxide Detector(s), Security Gate, Security Lights, Security System, Security System Owned, Smoke Detector(s)
Financial
HOA Name
Tregaron Place
Tax Year
2025
Taxes
$13,514
Map
Community
- Address522 Tregaron Place Frontenac MO
- SubdivisionTregaron
- CityFrontenac
- CountySt. Louis
- Zip Code63131
Subdivisions in Frontenac
Market Summary
Current real estate data for Single Family in Frontenac as of Sep 15, 2026
11
Single Family Listed
107
Avg DOM
419
Avg $ / SqFt
$2,381,545
Avg List Price
Property Summary
- Located in the Tregaron subdivision, 522 Tregaron Place Frontenac MO is a Single Family for sale in Frontenac, MO, 63131. It is listed for $3,400,000 and features 4 beds, 5 baths, and has approximately 6,165 square feet of living space, and was originally constructed in 1966. The current price per square foot is $552. The average price per square foot for Single Family listings in Frontenac is $419. The average listing price for Single Family in Frontenac is $2,381,545. To schedule a showing of MLS#mis26052654 at 522 Tregaron Place in Frontenac, MO, contact your Realty Exchange agent at (314) 647-2220.
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Copyright 2026. All rights reserved.
522 Tregaron Place
Frontenac, MO

