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The Harold Leidner Company has custom-designed and built amazing pools, gardens, landscapes, and outdoor living spaces for some of the most luxurious properties in Highland Park, University Park, Preston Hollow, Dallas, Fort Worth, Westover Hills, and Westlake for more than three decades. 

30 years ago, the Dallas landscape architects at Harold Leidner Company began with the idea that the exteriors they designed were best built by the designers of those exteriors — and for good reason. Architects are university-trained and state-licensed to understand the aesthetics of design and the details of construction. The same goes for Landscape Architects.

We do not sell our architectural plans for other contractors to install. And, we do not take a fee to manage those contractors that we did not hire. We build, manage, account, and guarantee every aspect of the projects that we design. And for a good reason. For example, it's common to see construction issues or questions arise that only the architect can answer. We know there are times that these contractors will make those decisions without consulting the architect. Our experience has shown that those decisions can cause long-lasting problems.

Our landscape architects and builders have designed and built residential exteriors that are better integrated because of that knowledge and experience. The materials used are more sustainable. Energy is used more efficiently. Environmental decisions are sensible and the physical beauty of those exteriors is undeniable — and all from a single source.

We are still run by landscape architects in the same way. Technology enhances the process, but the ideas still start with a pencil and a roll of tracing paper.

When it’s all said and done, a Harold Leidner Company exterior is iconic.

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I was born in Dallas, Texas, and graduated from Hillcrest High School. After years of running my own small landscape business, I pursued my passion for Landscape Architecture from Texas A&M University. Additionally, I worked at Neiman Marcus, where I learned everlasting lessons about customer service.  

Once I had my degree from Texas A&M University and state licensure in Landscape Architecture, I focused on residential design and construction. 

I’ve owned my Landscape Architectural business for over 30 years. For 30 years, we have stayed small and focused on high-end residential design and construction. As I tell all of my clients, when I first meet them, "if you like me, you’re going to see a lot of me. If you don’t, we’re probably a bad fit." Our clients like a simple point of contact and value working with a Landscape Architect. I guide them from beginning to end through the design, construction, and ultimately, the care of their property. My guarantee to all my clients is we take Total Accountability.

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Recognition

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Best of Houzz 9 Years Running
2021
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Residential Excellence in Design Award
2021
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Featured in Architectural Digest Magazine
2021
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Featured by Betty Lou Phillips
2021

Our Team

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Harold Leidner, RLA, ASLA

Bachelor of Science, Landscape Architecture, Texas A&M University
5U4A9178-JimHanke

Jim Hanke, RLA

Bachelor of Science, Landscape Architecture, California Polytechnic State University
5U4A8938-BrentLangdon

Brent Langdon

Bachelor of Landscape Architecture, Oklahoma State University
5U4A9055-DeanWilson

Dean Wilson, PLA, ASLA

Bachelor of Landscape Architecture, Oklahoma State University, Bachelor of Science, Landscape Contracting, Oklahoma State University
5U4A9112-JaredLeidner

Jared Leidner

Bachelor of Arts Real Estate. University of Georgia. Master of Landscape Architecture. University of Colorado, Denver
5U4A9030-DavidNewsome

David Newsome

Bachelor of Arts, Bridgewater State College, Boston University, Construction Manager
5U4A8785-1-HeatherAndrzejewski2

Heather Andrzejewski

Bachelor of Science in Construction Science, The University of Oklahoma, Contract Administrator
5U4A8813-LindaBrown

Linda Brown

Client Service Administrator
5U4A9190-AnnabethValdez

Annabeth Valdez

Bachelor of Science in Architecture, Texas Tech University. Master of Landscape Architecture, University of Texas, Arlington
5U4A8910-RobertCrites

Robert Crites

Bachelors of Landscape Architecture, Texas Tech University
5U4A8839-DeniseMetzger

Denise Metzger

Concierge Manager & Landscape Irrigation Technician LTI #IT0002820 Texas Master Certified Nursery Professional TMCNP #2653
5U4A9004-DeLyndaLanzillo

DeLynda Lanzillo

Administrative Assistant & Accounts Payable
JOIN THE TEAM

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Let us build your work of art.

You want beautiful, unique outdoor living that is the envy of those you know and those you don’t. Our licensed landscape architects have spent decades designing and building for the most discerning homeowners.