Extending your living space into the garden…

A group of individuals striving to make the sum greater than the parts!

At Phase One Landscapes our vision statement is to continue to be a leader in Design/Build Landscape Architecture and Construction, dedicated to
traditional values, loyalty to our customers, and respect for our employees and coworkers. We are dedicated to establishing standards to which the
industry can aspire and our clients will value, while realizing a fair profit from our talents and success.

Dave Graham


Graduating with a Bachelors of Science in Landscape Architecture from Iowa State University in 1981, Dave returned back to his native town of Denver. Working through the ranks of laborer, construction foreman, and designer he experienced residential design/build from the ground up. Opening Phase One Landscapes in 1988 he partnered with Dennis Frank, and together they have designed and built 100’s of landscapes over the last 30 years in the Denver neighborhoods of the Greater Denver Metro area. Maintaining his personal vision with company goals, the culture of quality and service is paramount in his management style. As the firm has grown his daily involvement with the team and the clients remains strong. As members of ASLA and ALCC, Phase One Landscapes projects have won numerous ALCC Awards, been featured on ASLA Garden tours, and been published in national and local magazines.

Dennis Frank


Dennis helped to establish Phase One Landscapes 30 years ago. Building his construction division with a solid foundation of skilled craftsmen, he manages a cohesive team of talented foremen and their crew members. Under his leadership, the construction division has grown year after year, installing beautiful projects of all sizes and degrees. We are proud of the many award winning projects constructed throughout the years, and our approach to quality has rewarded us with many happy clients. Dennis enjoys his time off, spending time with his family and grandkids, tinkering with projects around the ranch and watching the children work their way through college.

Landscape Architects / Project Managers

Scott Kleski


Landscape Architect / Colorado License # LA570
For Scott, it’s all about the people! No matter how long the hours or how difficult the design challenge, he feels that his job is worth it at the end of the day. With a Bachelors of Landscape Architecture from the University of Georgia and 28 years of experience, Scott has found his niche at Phase One Landscapes. Citing great design and great crews as a winning combination, he loves the challenge at the beginning of each day. In his off time, Scott enjoys spending time with his wife Brooke, and their two children Levi and Alexin. Work included!

Dalva Hedlund


Landscape Architect / Colorado License # LA-262
Dal graduated from Cornell University with a Bachelors degree in Landscape Architecture. He has been with Phase One Landscapes since 1991. Though his hair has gotten greyer, his experience has also grown along with the company. He has done it all during that time – surveying, drafting, design, drainage engineering, cost estimates, and project management. Dal often brings a dose of reality to designs, and is by necessity sometimes the offce curmudgeon. He is currently the cost estimator and resident expert for detailed drainage analysis and grading plans. Dal enjoys his time away from work with his wife and two teenage boys, playing squash, and exploring this great state.

Trish Nightingale-Peek


Trish graduated from the University of Massachusetts with a Bachelor of Science in Landscape Architecture.  She has since been working with award winning landscape architects for 15 years.  Trish especially loves horticulture and has been an avid gardener her whole life.  Her passion for the landscape industry has brought her around the United States and Europe studying diverse design approaches and material palettes.  While Trish began her career on the east coast she has since become an expert in Colorado landscapes after moving to Denver in 2010.  Trish strives to build strong, lasting relationships with the entire behind the scenes team that make projects a reality, such as the experts at nurseries and landscape supply vendors.

Trish is a huge sports fan and she enjoys traveling to different Major League Baseball stadiums. Her goal is to see a game at each stadium. She also enjoys cooking for her friends, gardening, and seeing live music.

Brendan Heiman


Brendan graduated from California Polytechnic State University with a degree in Landscape Architecture in 2011. While growing up in California he gained knowledge and experience working for plant nurseries and large-scale construction. After graduating, Brendan moved to Colorado to pursue a career in the design build industry. In his off time, he enjoys snowboarding, fly fishing, mountain biking and exploring the Colorado mountains while backpacking.

Rick Kaps


A graduate from the College of Environment and Design at The University of Georgia, Rick has a Bachelor’s Degree in Landscape Architecture. He has been at Phase One Landscapes since 2014. Having always had an affinity for the environment, Rick loves designing with nature and has worked in the field as an installer, designer, and project manager. In his free time he enjoys getting outside, seeing live music, and exploring the mountains!

Cameron Nester


Cam graduated from the University of Georgia in Athens with a Bachelor’s degree in Landscape Architecture. His passion for landscapes stems from his love for the outdoors and spending time in his grandfathers’ award winning gardens as a child. As a Landscape Architect, Cam strives to meet human needs while protecting and enhancing natural environments. In his free time Cam enjoys live music, hanging out with his cat Janis, and being immersed in our beautiful Colorado nature!

Colby Woodvine


Justin Mobley




Kim Zimmerman


Dave McFadyen

Dave McFadyen, also known as Coach Dave, has been coaching and consulting with Phase One Landscapes since 2009. He not only advises Dave and Dennis, as the owners, with overall business strategies and reporting, he has proved invaluable with direction and assistance for the design and construction teams concerning customer service and operations. He is also instrumental in building our client relations software and the ongoing modications that make things incredibly efficient with our customer flow, relationships, internal communication, and document management. He has become an integral team member here at our firm. In his free time he consults with paying clients.

Irrigation and Maintenance

Karla Katt


Karla has been participating in, and involved with, Phase One Landscapes projects for years. Her sense of quality design and excellent landscapes has helped her to develop our custom maintenance and garden care division. Although relatively new to working in the green industry, having enhanced and grown the division for three years, her ability to learn and enthusiasm for beautiful landscapes and customer service are serving her and the teams clients well. Karla enjoys camping and going to the library with her grandson, Ashton, and spending time with family and friends.

Mark Knecht


Mark has 12 years of experience working in the green industry with 4 of his 8 years as a Maintenance Foreman with Phase One Landscapes. Having experience in Florida, Arizona, and now Colorado he enjoys the diversity of plant material and their needs in Colorado and around the country. Rock climbing, hiking, and snowboarding are high on his list when not at work.

Judd Vogan


Judd is an accomplished and dedicated Irrigation Specialist. He launched his career at a championship golf course on the gulf coast of Florida in 1997, and became a Licensed Florida Irrigation Contractor in 2001. Over the years he has gained a solid background in the design, installation, and service of residential and commercial irrigation systems for custom homes and properties. He relocated to Colorado in 2010, and started with Phase One Landscapes in 2015, where he continues to provide exceptional irrigation services. A devoted father of two sons, he spends his free time with his family enjoying the Colorado outdoors. Participating in hunting, archery, fishing and hiking he continues his love of the outdoors that he has had since childhood. Relaxation is often in the company of a good book.  Don’t be offended if he remembers your dogs’ name and not yours!

Marshall Vogan


Construction Operations

Jose Valdes


Jose has been with Phase One Landscapes since 1994. Since taking over as construction operations manager his duties have changed. He is now responsible for planning and coordinating activities concerned with the construction of structures, facilities, and systems. He is also involved in the conceptual development of a construction project and he oversees its organization, scheduling, and implementation. Jose brings a wealth of construction knowledge to the sites, and his amiable demeanor is enjoyable to be around. Jose enjoys watching baseball, football, and spending his free time with his wife and three daughters.

Anthony Velasquez


Foremen and Crew

Venancio Ferro Lopez

Venancio started working as a laborer in 1997, working his way to a foreman position in 2001. Venancio has a get it done attitude, has a lot of energy, and his ability to coordinate large and small projects is respected by all. Venancio spends his time off taking his wife and two sons sightseeing in the mountains.

2021 Crew: Juan Carlos Beltran, Florencio Sanchez, & Pedro Zazueta

Modesto Zazueta

Modesto began as our delivery driver in 1993, and as we restructured the construction process he began supervising a crew in 1997. With 4 years of seeing it all, and 18 years of supervising experience he is versatile, handling complicated projects both large and small. Modesto enjoys camping, fishing, and spending time with his wife, three daughters and his son.

2021 Crew: Juan de Dios Duarte, Gerardo Sanches, & Francisco Cazarez

Carlos Inzunza

2021 Crew: Juan Inzunza, Rodrigo Montoya Medina, Jose Castro, & Orlando Valdez

Chamon Ferro Lopez

2021 Crew: Jesus Solis Ramirez, Fidel Carrillo, & Victor Lopez

Francisco Cervantes

2021 Crew: German Valdez, Camilo Rodriquez, & Jesus Antonio Felix

Manuel de Jesus Perea

2021 Crew: Jose Cosme Gamez, Jesus Lopez Perea, & Gustavo Alberto Felix Perea

Josue Corral

2021 Crew: Rodrigo Montoya Medina, & Orlando Valdez

Armando Lopez

Armando joined the Phase One team in 2001 as a laborer; he worked his way to a right-hand man and then progressed to a foreman position in 2013. He took over the crew that was previously assigned to Jose and since then has become a top performing foreman with the ability to properly coordinate crew members, plans and suppliers. He enjoys his free time with his wife and kids watching soccer and the Broncos, he also enjoys watching his son and daughter play soccer.

2021 Crew: Manuel Lopez Garcia, & Jose Angel Lopez