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About Us

Sierra Design Group is a two principal landscape architectural firm, specializing in site design of commercial, residential developments, and public facilities projects. The firm was established in South Placer County, CA in 1991.  The principals of Sierra Design Group are Daryl F. Martin, CLA No. 2803 and Michelle M. Martin, CLA No. 2694. The two principals earned their Bachelor of Science degrees in Landscape Architecture from California Polytechnic State University, San Luis Obispo, CA.  Sierra Design Group approaches every project with the understanding that the project belongs to our client.  We believe our role is to take our client’s needs and project requirements and incorporate them into the landscape design.  Sierra Design Group strives to blend our expertise and creativity with our client’s design program requirements to produce a project that reflects our client’s vision.

Michelle Martin, Principal

Prior to her involvement in Sierra Design Group, Michelle Martin acquired eleven years of experience in landscape architectural firms in both the San Francisco Bay Area and Sacramento. She is proficient at project management, design development, construction document preparation, and construction administration. Ms. Martin's range of projects include single family residences, planned housing developments, design guidelines, conceptual landscape master plans, commercial developments, office complex developments, and both recreational and sculptural city parks. 

Daryl Martin, Principal

Daryl Martin developed his professional skills in a mid-sized landscape architectural firm in the San Francisco Bay Area, where he rose to senior associate. Upon establishing Sierra Design Group, Mr. Martin has helped to develop a very strong client base with completed projects ranging from numerous model home complexes, to streetscapes and gated entries, to office and commercial centers, as well as other project types.  Mr. Martin has been a member of the American Society of Landscape Architects (A.S.L.A.) and has served on the California Council of A.S.L.A.   

What Our Clients Have Had To Say

“Daryl is a responsive, creative landscape architect who consistently works well as part of our design team.”

Richard Sambucetti, Operations Director at Borges Architectural Group


“In 2011, I hired Daryl (Sierra Design Group) to drive the landscape architecture and irrigation design for four of Belectric's very time-sensitive power plant projects and I can say that he exceeded my expectations from the outset. Daryl is a true professional, providing superior attention to detail and quality of work, while being very personable and easy to communicate with. He also took the initiative to assist me in finding local subcontractors to install these systems, and provided very thorough and well-documented construction inspection reports. I would not hesitate to hire Sierra Design Group again.”

Jason Cole, PE


“As President of JTS Communities from 1988 through 2005 some of my responsibilities were the design and execution of the developments and model complexes where I continually chose Daryl Martin and Sierra Design Group as our exclusive resource for landscape and infrastructure construction documents. It was our cooperative efforts that resulted in many prestigious industry design awards but more importantly beautifully executed budget sensitive projects that moved buyers to purchase our product. I highly recommend Daryl as the consummate professional in his field. Please feel free to contact me.”

Daryl Whiteside


“Daryl is an excellent Landscape Architect. Daryl is very good at creating a high impact design under any budget criteria and is very cost effective in doing so. In his scope working for a production builder, he was consistent in meeting our timelines and budget needs.
I would strongly recommend Sierra Design Group for any Landscape Architecture needs.”

Mike Carson


“We have used Daryl on multiple projects for landscape and irrigation design. He has been professional in all aspects and has always completed a project ahead of schedule. He is the first person I will contact when we need landscape design plans.”

Jeff Sandgren


“As project manager for Buzz Oates Construction I used Sierra Design Group on numerous projects. I found that Sierra Design Group provided complete and accurate designs which streamlined the approval process for landscape design. They are very knowledgeable in the irrigation and planting requirements for all jurisdictions. The completed projects designed by Sierra Design Group were well received by property managers and owners.”

Tom McGuire

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