Luxury house with stone exterior featuring multiple balconies illuminated at dusk, with a backyard patio pool area including sun loungers, a fire pit with a fire, seating with pillows, a bar area, and a view of tall trees.

Our custom approach to landscape design begins with understanding our clients’ lifestyle goals. Rather than providing cookie-cutter options, we bring 25+ years of creative design solutions to the table, envisioning each project as an organic extension of your home.

At the same time, we view outdoor living as a meaningful investment in both quality of life and the value of your property. So when it comes to implementing a budget, we closely consult with each client to maximize returns—both financially and experientially.

This perspective influences our selection of trusted subcontractors and materials, ensuring that we provide lasting value in each design collaboration. As experts in landscaping for the Colorado climate, we consider questions of sustainability, maintenance and overall longevity, educating our clients on the ongoing impacts of their preferred design choices.

This design-forward, value-oriented and climate-specific approach forms the bedrock of our transparent, collaborative client relationships. With a consistent manager assigned to each project throughout the design-build process, you can feel confident in our ability to build the backyard of your dreams.

OUR PROCESS


Phase One: Dream

We begin each project with a discussion of your property’s unique attributes and constraints, as well as your timeline, budget and broader lifestyle goals. Beginning with an on-site walk-through, this phase uncovers the essentials—from aesthetic preferences and privacy needs to climate and long-term maintenance considerations.


Phase Two: Design

This master planning phase defines the layout of your outdoor space, including a detailed materials and planting palette, lighting and irrigation plans. Our team will also consider any phased planting needs, drainage concerns or major structural changes, taking into account any HOA / neighborhood regulations and permitting requirements.


Phase Three: Build

Helmed by a dedicated project manager, each aspect of the project build will be executed by trusted specialists in their trades—with respect for your home and property being our first priority. If delays, unforeseen conditions or scope changes arise, they will be address transparently and promptly.


Phase Four: Maintain

As part of our thorough hand-off to property owners, we provide a detailed annual maintenance plan to ensure the long-term integrity of your investment. From seasonal irrigation plans to recommended touchpoints for preserving your investment, we also offer ongoing maintenance services to ensure the seamless enjoyment of your space.


MEET OUR FAMILY

Born and raised in the Midwest, Zach and Stephanie Horner moved to Colorado with a shared vision: to build a life rooted in family, purpose and a deep respect for the outdoors. Like many of the clients they serve, they were drawn to the region not only for its natural beauty, but also by the opportunity to create a home and a lifestyle that allowed more time for connection with friends and their son, Theo.

Small business ownership was central to this vision, with Zach’s background as a collegiate athlete and longtime financial advisor shaping his thoughtful approach to complex decision-making and long-term planning. Stephanie, raised in a multi-generational family of entrepreneurs, brought deep experience in recruiting, team development, and organizational leadership—ensuring that people and process remain central to every project.

In 2025, they acquired Browne & Associates, a Denver-based landscape design firm with more than 25 years of local expertise and craftsmanship. Their goal was not to reinvent the firm’s foundation, but to elevate the client experience through transparent communication, a shared sense of investment and a nuanced understanding of how design influences quality of life.

Today, rebranded as Waymark Outdoor Design, the company is guided by experienced designers, craftsmen and project leaders who share a commitment to enduring quality. Zach and Stephanie view themselves as stewards of both the firm’s legacy and each client’s investment, creating environments that foster gathering and transform each family's experience of home.

A happy family of three, a man, a woman, and a young boy, standing outdoors on a grassy field with mountains in the background. The man and woman are embracing each other and smiling at the camera, while the boy is running toward the camera with a big smile.
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Accolades

Colorado Homes & Lifestyles List: Top Landscape Designers (2018 - 2025)
Luxe Gold List (2021)

Featured Press

A Colorado Home Shines With A Refreshed Rugged Style
Luxe Magazine

A Transitional Sedalia Retreat
Luxe Magazine

Adding Layers & Depth to an Outdoor Space
One-Kind Design

Where Country Meets the City in Denver’s Belcaro Park Neighborhood
Colorado Homes & Lifestyles

Isle of Wright: Home Feature
Colorado Homes & Lifestyles

Entrepreneur Laura Love’s Denver Home
Colorado Homes & Lifestyles