9421 Thornberry Lane, Dallas, Texas

$3,250,000

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5

Beds

5.2

Baths

7,610

Square feet

0.33

Acres

About 9421 Thornberry Lane

Introducing 9421 Thornberry Lane, a privately gated modern neo-classical estate by COZIE, offering 7,610 square feet of newly constructed luxury in Midway Hollow. Set on an expansive lot and framed by mature oak trees, the residence pairs a refined stucco exterior and steel framed windows with marble flooring, intricate crown molding, custom millwork and statement designer lighting throughout. A dramatic double height foyer with a sculptural curved staircase opens to the soaring great room, formal kitchen and inviting family living area. Designed for elevated entertaining, the home features a Sub-Zero, Wolf and Cove appliance package, oversized island, full catering scullery, walk-in pantry, bar and wine cellar. Three primary-quality suites—including two on the first floor—create exceptional multi-generational flexibility. The owner’s retreat includes a 14 foot recessed ceiling, fireplace, patio deck access, spa bath with a fully marble clad shower and a walk through closet with private laundry. Additional highlights include five ensuite bedrooms, a paneled study, dedicated home theater, game room, flex space, whole home audio system, three fireplaces, a second floor balcony, three car garage and built in outdoor kitchen. The expansive backyard offers exceptional space for a future pool, cabana and sports court. A rare opportunity to own a thoughtfully designed COZIE estate blending classical elegance, modern function and enduring luxury.

Features of 9421 Thornberry Lane

MLS® # 21350337
Price $3,250,000
Bedrooms 5
Bathrooms 5.20
Full Baths 5
Half Baths 2
Square Footage 7,610
Acres 0.33
Year Built 2026
Type Residential
Sub-Type Single Family Residence
Style Contemporary/Modern
Status Active

Community Information

Address 9421 Thornberry Lane
Subdivision Northwest Heights
City Dallas
County Dallas
State Texas
Zip Code 75220-5144

Amenities

Utilities City Sewer, City Water
# of Garages 3
Garages Driveway, Garage, Tandem
Is Waterfront No
Has Pool No

Interior

Interior Features Built-in Features, Built-in Wine Cooler, Chandelier, Decorative Lighting, Double Vanity, Eat-in Kitchen, High Speed Internet Available, Pantry, Walk-In Closet(s)
Heating Central
Fireplace Yes
# of Fireplaces 3
Fireplaces Electric, Gas

Exterior

Exterior Features Balcony, Built-in Barbecue
Roof Composition
Construction Stucco
Foundation Slab

School Information

District Dallas ISD
Elementary Walnuthill
Middle Medrano
High Jefferson

Additional Information

Date Listed August 4th, 2026
Days on Market 46

Listing Details

AgentPiper Young
OfficeChristie's Lone Star

Listing Map

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