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Bachelor of Science in Landscape Architecture, Arizona State University, Tempe Arizona 


Landscape Architect: #6595

Certified Irrigation Designer (CID)

Certified Landscape Irrigation Auditor (CLIA)

Recycled Water Site Supervisor (RWSS)


American Society of Landscape Architects

ASLA President 2020

ASLA-City of San Diego Tree Code Working Group

Irrigation Association (IA)

Brett Allen

Principal, ASLA, CA LLA #6595

Certified Irrigation Designer, CLIA, RWSS

Brett  has over 17 years of landscape technical advisory experience, working with public agencies and private clients to formulate landscape guidelines that conform to water conservation ordinances, grouping appropriate plantings per WUCOLS (Water Use Classification of Landscape Species), maintenance guidelines, design using native plants, water conservation, analysis of water efficient irrigation equipment, water management, central control system conversion, water audits, and water demand analysis.  Brett is highly experienced in preparing irrigation point of connection master plans, demand analyses, hydraulic analyses and coordinating this information with multi-disciplinary teams in both the public and private sector.

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