The Armory at 1400 Gribble: Where History, Mavericks Fandom, and Modern Luxury Collide

As the oft-used adage goes, everything is bigger in Texas — but few properties embody that spirit quite like The Armory at 1400 S Gribble St. in Sherman.

At more than 24,000 square feet and sitting on 9.36 acres, this one-of-a-kind estate is a dazzling blend of historic charm, over-the-top luxury, and endless potential. Once a 1920s Texas National Guard Armory that housed the 49th Armored Division, it now stands as a showcase of style, security, and versatility.

From the outside, it feels like a fortress. Step inside, though, and you’ll discover a space that can pivot from corporate headquarters to a private estate, an upscale event venue, or a mixed-use development. Located just a mile from the Innovation and Technology corridor — where more than $40 billion in investments from Texas Instruments and GlobalWafers are reshaping the landscape — The Armory is perfectly positioned for Sherman’s growth. The city’s population is projected to nearly double in the next decade.

Luxury, Innovation, and Wow Factor

Beyond its history and sentiment, The Armory stuns with features that rival the finest estates. The Great Hall spans 120-by-60 feet, soaring with 20-foot ceilings, two 10-ton air conditioning units, a 25-foot high-volume fan, and a dozen Sonos HiFi speakers. An indoor gun range offers state-of-the-art soundproofing and HEPA scrubbing, perfect for security or specialized training.

The chef’s kitchen is a showstopper, featuring a La Cornue Grand Palais 180 range, nickel quartzite waterfall countertops, a commercial-speed dishwasher, and basalt mosaic flooring. For entertaining, the game room offers a Beverly Blue quartzite wet bar, an 1890s Welsh slate snooker table, antique stained-glass lighting, and rich cherrywood cabinetry.

The primary suite wows with marble floors, a Kohler Real Rain shower, two Napoleon fireplaces, and even an original munitions safe — an incredible nod to the property’s history. Outdoors, a flagstone patio extends the living space with a Napoleon kitchen, a six-foot fireplace, and plenty of room to gather.

The 5,300-square-foot annex continues the theme. It’s fully insulated and air conditioned, with high-end finishes matching the main building, plus 25-foot ceilings, surveillance cameras, Sonos audio, and car lifts, making it ideal for automotive enthusiasts or business operations.

A Memorabilia Collector’s Dream

The late Don Knobler — a North Texas personality known for his colorful outfits and unwavering enthusiasm for the Dallas Mavericks, real estate, and the Lake Texoma region —  poured his energy into transforming this space into something extraordinary. His wife, Damaris, reflected on his passion:

Don loved his memorabilia so much that he needed an armory in Sherman to contain it. It’s a collection he spent over 30 years putting together. He could never have enough Mavs gear.

To his family, The Armory became more than just a building. As his friend observed, “To Don, it was a peaceful sanctuary; a love letter to his wife and community. He felt at peace seeing his lifelong collections being displayed and appreciated.”

A Deal You Shouldn’t Overlook

Listing agent Andy Scott with GPS Group summed it up best:

When I first visited the property, I was blown away. The attention to detail rivals the highest-end homes. The price is actually aggressive compared to other commercial and residential properties in the Sherman area. It’s an amazing deal for what it is.

With strong bones, a luxe vibe, and a connection to one of North Texas’ most colorful personalities, this listing is more than just a property. At $5.4 million, it’s a chance to own a piece of Sherman history while investing in a versatile future. Contact Andy at 469.682.2387 | [email protected] for more information.

Dave Perry Miller Real Estate agent Andy Scott has 1400 S Gribble St. listed for $5.4 million.