The Arroyo Group Team



Larry Morrison, AIA, FAICP

Founding Principal

As founding Principal of The Arroyo Group, Larry has directed a full range of planning and urban design projects including new towns, downtowns and transit-oriented development. The Arroyo Group’s body of work reflects Larry’s interests in inclusive community engagement, integration of the visual and performing arts into city planning and the invention of new solutions based on cultural context, economics and the integration of nature with the built environment.  Larry is an architect, urban designer, patent-holding inventor and song-writing member of ASCAP (the American Society of Composers, Authors and Publishers). Built results of Larry’s work can be experienced in environments as diverse as the new town of Irvine, the historic downtown of Pasadena, the waterfront of Long Beach and the bustling Los Angeles Wholesale Produce Market.  Larry reviews plans and buildings for the University of Arizona where he received his undergraduate architecture degree in architecture and is engaged with the urban design curriculum at the University of Pennsylvania where he received his master’s degrees in Architecture and City Planning.

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Philip Burns, AICP


Philip Burns' specialties include encouraging and mediating community engagement and public participation with diverse populations, data analysis, geographic information systems and form-based codes. Phil’s recent project management experience includes transit-oriented development plans for four Metro Rail stations in Inglewood, active transportation, first/last mile and VMT-reduction projects in Pasadena, Carson and the east San Gabriel Valley, and an open space vision plan for Arleta and Pacoima in the City of Los Angeles. Philip is fully bilingual in Spanish and English. He holds a bachelor’s degree in Urban Studies from Brown University and a Master of Planning (Preservation and Design concentration) with a Certificate in Real Estate Development from the University of Southern California.


Timothy Sloat

Senior Associate

Timothy Sloat is an architect and planner experienced in the preparation of master and site plans. Tim has nearly twenty years’ experience working as an architect and urban designer with The Arroyo Group and several developers.  His work with The Arroyo Group includes three-dimensional visualizations for the Pasadena Civic Center and the development of reuse concepts for 755 acres in the City of Brisbane located adjacent to the San Francisco Bay. He is a visionary leader and a creative problem solver dedicated to ego-free collaboration, persistent consensus building, exceptional design quality, and the highest professional ethics. Tim graduated with honors from UC Berkeley’s College of Environmental Design and also received a minor in design at the theatre department.