Diego Alessi, PLA, ASLA

“I live and breathe design, and is an integral part of who I am. I consider myself an artist, and use design to shape the things around me and influence the people that support and believe in me. ”

Diego’s ability to author a story through Landscape and execute it to the completion of the project strengthens AO’s ability to deliver a comprehensive and well thought out vision for our clients. Diego has over 25 years of experience in Landscape Architecture and has spent the majority of those years focused on Retail/Mixed-use, Hospitality Resort Development, and High-Density Residential projects in both International and Domestic Markets. His broad project experience also includes Rooftop Venues, Night Clubs, Restaurants, Urban Spaces, Parks and Recreation, Master Planned Communities, and Golf Course Design. As Landscape Studio Director, Mr. Alessi is responsible for all aspects of the design process, including business development, and is extremely active in the daily development of projects. His approach to design is collaborative, flexible, and hands-on, constantly working to provide progressive and dynamic solutions. 

Contact: DiegoA@aoarchitects.com | T 714.639.9860

Diego in three words:

Creative. Adventurous. Motivated.


CLARB Certified Landscape Architect
Licensed in CA, NV, AZ, UT, ID, WA, OR, TX and KT


Bachelors of Science, Landscape Architecture, Cal Poly Pomona


American Society of Landscape Architects (ASLA)
Urban Land Institute (ULI)
Building Industry Association (BIA)
International Council of Shopping Centers (ICSC)

Associated Studios