Inside a Rare Dilbeck Ranch Duplex: Willis Winters Explains Rooflines to Rotated Squares

This 1940 Dilbeck Ranch Duplex is chock full of the signature features that have captured our imaginations for decades. Although CandysDirt.com has an extensive archive of information on architect Charles Dilbeck, new things about him pop up all the time. Like the fact that he designed quite a few duplexes.

Most of us know Dilbeck for his eclectic and whimsical features, from complicated rooflines, round masonry columns, and wide Dutch doors to massive fireplaces and wood panel ceilings in dining rooms. Notably, he integrated these same features into his duplex designs, creating cohesive architectural identities across his works.

Willis Winters, the leading authority on Dilbeck, was kind enough to take time away from edits to his upcoming book on the architect to guide me through the many distinctive features of this Dilbeck Ranch duplex at 4411 and 4409 Normandy in University Park.

“Dilbeck designed several duplexes,” Winters said. “There are almost 20 left in Dallas.” Starting with the exterior, Winters explained the signature elements, including the shed roof covering the front door of 4411 with a diagonal support bracket.

A timber header stretches over the door and window of 4409, which is something Dilbeck did on his French Norman single-family homes. There is also a timber sill under the windows, and both doors have handcrafted metal light pendants that would have been fabricated by Potter Art Metal Studio.

“The front facade of this Dilbeck Ranch duplex has a vertical element similar to his octagonal towers on his French Norman residences throughout Dallas,” Winters said. “There would typically be an interior stairwell here. The masonry grill above the door at the top of the tower is a major signature element for Dilbeck. This is unique because it looks like it is concrete or plaster, so there would be an operable window behind that. The smaller circular window on the left, which I call a round oculus, is another signature of Dilbeck and is usually placed near front doors. The brick detailing at the top is a classical Greek element, and there is quite a lot of interesting detail here. Dilbeck used this on many residences, usually the upper-end residences. The brick detailing here is really phenomenal.”

Although I’d never seen a front door like 4411 Normandy, Winters noted that one of Dilbeck’s favorite design elements is the rotated square. The 4409 door has a rustic vertical plank door, which is seen on his French Norman homes. Another distinctive characteristic is the Monterrey balcony on 4409 with the cantilever beams and exposed roof rafters.

On the side of the Dilbeck Ranch duplex, there is a belt course of brick. This one has Dilbeck’s favorite rotated squares along the coursing, his notable round brick columns, and brick window surrounds.

One of the more unusual features that even Winters had not seen on other houses is the detailing above and under the windows at the rear corner of the house between the round brick columns.

“It is a very elegant and sophisticated wood detail that I don’t think I’ve seen on other houses,” Winters said.

Inside, you will find the Dilbeck-defining massive fireplaces in each unit, the exposed round brick corner columns are visible inside, the upstairs unit has vaulted and beamed ceilings, and the French doors have his signature horizontal glass panes. “The wood behind the doorknobs is an almost exclusive Dilbeck detail,” Winters said.  You can also see the wood panel ceiling in one of the dining areas, another take on his rotated square, with each panel oriented in a different direction.

This is an incredible opportunity to own a beautifully maintained historic Dilbeck Ranch duplex with so many of his signature features. Not only can you enjoy living in a unique space, but you can also benefit financially by renting out the other unit — providing a potential source of steady income. If you are a renter, the duplex setup offers the added security of having a neighbor close by. It’s a win-win, so don’t be surprised if it is snapped up quickly!

Allie Beth Allman’s Karen Estes has 4411 and 4409 Normandy Ave. available for $2.3 million.