
Discover an extraordinary piece of architectural history: a truly exceptional Midcentury Modern Ranch home in Dallas that stands as a pristine “time capsule” from 1957. In today’s dynamic real estate market, encountering an original residence from this coveted era, maintained in such impeccable condition and boasting such remarkable provenance, is an increasingly rare and celebrated event. This residence isn’t merely a house; it’s a testament to enduring design and thoughtful preservation, offering a unique glimpse into the sophisticated residential aesthetics of the mid-20th century.
The allure of Midcentury Modern design lies in its timeless appeal, characterized by clean lines, open spaces, and an seamless integration with nature. This particular ranch home exemplifies these principles with an authenticity that is virtually unmatched. Its original features have been lovingly preserved, creating an environment where the spirit of 1957 architecture thrives, allowing residents to experience the past while enjoying the comforts of the present. For connoisseurs of period architecture, this home represents an unparalleled opportunity to own a tangible piece of design legacy.


The 1950s heralded a golden age for architecture in Dallas, especially for enthusiasts of the burgeoning Midcentury Modern movement. This vibrant decade saw the city transform with an explosion of innovative residential designs, establishing Dallas as a hub for cutting-edge architectural thought. Neighborhoods like JanMar were actively being developed, showcasing some of the most iconic structures, including the renowned Round House, which captivated the city with its unique circular form and progressive vision. This period was characterized by a forward-thinking approach to residential living, emphasizing light, space, and a connection to the natural environment.
Beyond JanMar, other significant developments were taking shape across Dallas. Midway Hills was platted in the mid-1950s, quickly followed by the development of the highly sought-after Disney Streets, which became synonymous with charming and architecturally distinct homes. Areas such as Highland Meadows, Eastwood, Kiestwood, Lochwood, and White Rock North experienced an unprecedented boom in creative residential construction. This architectural renaissance was fueled by the visionary work of talented architects who made Dallas their canvas. Luminaries such as Howard Meyer, known for his elegant and functional designs, Edward Durrell Stone, whose national influence extended to Dallas, Arch B. Swank, Thomas Scott Dean, Gordon Nichols, and the influential E.G. Hamilton, each contributed to shaping the distinctive Midcentury Modern landscape of the city, leaving an indelible mark on its residential heritage.

While many of these historic homes have seen various transformations over the decades, certain enclaves within Dallas have admirably retained a notable concentration of their original Midcentury Modern residences. The charming Walnut Hill Park neighborhood, for instance, still boasts around 14 or 15 examples of this sought-after architectural style. However, even among these cherished survivors, the particular Midcentury Modern Ranch we explore today truly stands apart, arguably unmatched in its preservation and unique story.
This exceptional home was conceived and brought to life by Harley Lee Tracy, a highly active and influential architect in Dallas during the 1950s. Tracy’s career path was as remarkable as his designs, extending far beyond residential architecture. He notably contributed his engineering and design expertise to Rockwell International, playing a crucial role in the NASA space program and assisting in the design of the iconic space shuttle. This extraordinary background imbues the home with a provenance that few others can claim. Imagine owning a residence designed by an individual whose vision reached for the stars – a true testament to mid-century innovation and the multidisciplinary talents of its creators. This fusion of aerospace precision with residential design principles likely contributed to the home’s distinctive functionality and thoughtful layout, making it a truly unique piece of Dallas’s architectural fabric.
An Original Midcentury Modern Ranch: A Family Legacy
To truly understand the essence of this Midcentury Modern Ranch, one must delve into its living history, best recounted by those who cherished it most. We were incredibly fortunate to speak with the current owner, Ken Altes, who not only owns this remarkable property but also grew up within its walls. Ken was just seven years old when his family made the significant move to 3960 Cobblestone Drive, a home that would shape his childhood and remain a cherished part of his life for decades.
Ken recounted the initial skepticism of his father, a common sentiment when encountering the then-unconventional modern aesthetic. “My mom brought my dad by, and he was not impressed,” Ken shared, recalling the early days. “There was no landscaping, and he refused to go inside. But of course, she convinced him, and the minute he walked in, he said yes, of course, because it’s so dramatic when you enter.” This anecdote perfectly captures the transformative power of the home’s interior, designed to make an immediate and lasting impression, revealing its true architectural brilliance only upon entry. The Altes family officially moved into the home in 1960, a mere three years after its completion, signaling the beginning of a profound connection between family and architecture.
Once settled, Mr. Altes, Ken’s father, wasted no time in addressing the initial lack of landscaping that had initially deterred him. With the fortunate assistance of a neighbor who happened to be in the landscaping business, he embarked on creating an exterior environment that would complement the home’s modern lines and extensive glasswork. This thoughtful attention to the exterior was crucial, given the home’s profound connection to its surroundings, a hallmark of Midcentury Modern design.

“The black and white photo was me when the rocks and gravel and 28 skinny trees had just been installed,” Ken reminisced, highlighting the nascent stage of what would become a verdant sanctuary. Those once slender trees have since matured into towering Live Oaks, providing magnificent shade and a sense of established tranquility to the generous 0.37-acre property and the 1,727-square-foot residence. With over 100 feet of breathtaking floor-to-ceiling, wall-to-wall windows, Mr. Altes Senior instinctively understood that the landscaping design was not merely an aesthetic enhancement but an absolutely paramount element, integral to the home’s privacy, comfort, and the overall experience of indoor-outdoor living – a core tenet of Midcentury Modern design philosophy.
As dramatic and impactful as the expansive windows are, another defining feature of this Midcentury Modern Ranch is its distinctive pine 2-by-4 ceiling. This architectural marvel extends seamlessly throughout the entire house and even into the attached 450-square-foot garage. This continuous ceiling treatment not only unifies the interior spaces but also adds a unique texture and warmth that is instantly recognizable as a signature of the era. The inclusion of a fully enclosed garage, rather than the more common carports seen in many homes of this period, further underscores the thoughtful and forward-thinking design choices made by architect Harley Lee Tracy. This practical yet aesthetically pleasing detail contributes to the home’s exceptional originality and functional integrity, setting it apart from its contemporaries.



One of the most compelling aspects that elevates this property to a true architectural treasure is the remarkable fact that very few modifications have been made to the home since the Altes family moved in during 1960. This unparalleled level of preservation is precisely what makes this such a valuable and rare offering for true Midcentury Modern Ranch enthusiasts and architectural purists. While the original cork floors eventually began to show wear and tear, a sensible and aesthetically harmonious update was introduced in the 1980s: approximately 1,000 square feet of exquisite Tennessee red oak hardwoods were installed throughout the main living areas. Far from detracting from the home’s original character, these warm hardwoods beautifully complement the existing wood paneling and the distinctive pine ceilings, enhancing the interior’s natural warmth and contributing to a cohesive, inviting atmosphere that honors the home’s mid-century origins.




The ingenuity of its design is perhaps best captured by Ken Altes himself: “One of the triumphs of this house is that it is so open yet so private,” he reflected. “That is good design.” This seemingly contradictory statement speaks volumes about the sophistication embedded within this Midcentury Modern Ranch. The architects of this era mastered the art of creating expansive, light-filled spaces that simultaneously afforded residents intimate seclusion. For instance, the principal bedroom features an entire wall of glass, inviting abundant natural light and a feeling of boundless space. Yet, this glass wall thoughtfully faces a secluded private garden, meticulously enclosed by a privacy fence. This strategic placement ensures that while one enjoys the beauty of the outdoors from within, absolute privacy is maintained. This level of meticulous planning and thoughtful integration of form and function characterizes the entire home, showcasing a profound understanding of harmonious living.

Among the many clever and innovative features found within this Midcentury Modern Ranch, one particularly stands out for its ingenuity and adaptability: the movable wall wardrobes. This brilliant design element perfectly embodies the mid-century emphasis on functionality, efficiency, and flexible living spaces. Ken enthusiastically described these unique components: “Look at the drawers in the two small bedrooms. Each small bedroom has one of its own. These are two wardrobes that, when put together, make a wall. They slide! Each of the two units has a closet, drawers, and a cabinet below the drawers. We put Masonite above them, making them into a wall. Then, two bedrooms!”
This innovative modular system allows for the seamless transformation of space, providing the flexibility to adapt the layout according to evolving family needs. These aren’t merely storage units; they are architectural components that serve a dual purpose, acting as both ample storage solutions and dynamic partitions. This thoughtful integration of furniture and architecture maximizes the utility of each square foot, a hallmark of excellent design from the period. The sliding mechanism and comprehensive storage within each unit—a closet, multiple drawers, and a lower cabinet—showcase a detailed consideration for everyday living. This clever solution not only offers practical benefits but also reflects the forward-thinking design philosophy of architect Harley Lee Tracy, demonstrating how intelligent planning can create adaptable, comfortable, and truly unique living environments.


“We have enjoyed this house and been proud of it,” Ken concluded, his words echoing decades of cherished memories and a deep appreciation for the home his family nurtured. This sentiment underscores the profound connection that can develop between a family and a thoughtfully designed residence. It is Ken’s sincere and heartfelt hope that the next owners will share this same passion and understanding for Midcentury Modern Ranch design. He envisions this as a once-in-a-lifetime opportunity for a new family to become stewards of this architectural masterpiece, to appreciate its original integrity, and to create their own lasting memories within its walls, ensuring its legacy continues for generations to come.

For those eager to embrace this unique blend of history, design, and family legacy, this exceptional property is currently available. Brent King of the Brent King Group proudly presents 3960 Cobblestone Dr. in Dallas, TX, offered at $849,000. This is your chance to own a truly unparalleled Midcentury Modern treasure.