Four Decades of Excellence

From humble beginnings to regional leadership, API Architecture has been shaping Central California's built environment since 1982.

Our Story

From birdhouses to buildings

API began with two architects, a shared vision, and the challenges of an economic downturn. One partner left a stable municipal job while the other was working from his garage. Together, they took on any project they could—describing their expertise as "birdhouses to buildings"—united by a commitment to delivering exceptional work.

This humble, hungry beginning forged the foundation of our firm. The need to be versatile created a breadth of experience that remains our greatest asset today. We believe our diversity is our strength, allowing us to serve a wide range of industries and bring a unique, creative perspective to every challenge.

While our founding partners have since retired, their original ethos of attentive service, collaborative partnership, and unwavering dedication is the bedrock upon which we continue to build.

Tim Fisher and Frank Boots - Founding Partners

Tim Fisher & Frank Boots - Founding Partners, 1982

API Architecture Office
API Team Meeting
API Architecture Detail
API Project Site
40+
Years of Excellence
API Building Exterior

Our Journey

Key milestones in API's evolution

1982

Foundation

Tim Fisher and Frank Boots establish Architecture Plus, Inc., embracing a 'birdhouses to buildings' philosophy—taking on projects of all sizes to build reputation and expertise.

1984

Joe Smith Joins the Team

Joe Smith is hired, bringing fresh talent and energy to the growing firm. His dedication and skill would later lead him to become a key partner in the organization.

1987

Rod Alonzo Joins the Team

Rod Alonzo joins the firm, further strengthening the team. His expertise and leadership would prove instrumental in the firm's continued growth and success.

1996

Joe's Partnership Transition Begins

Joe Smith begins his transition to partnership, marking the start of a new generation of leadership and ensuring continuity of the firm's founding principles.

1997

Rod's Partnership Transition Begins

Rod Alonzo begins his partnership transition, joining Joe in the next generation of firm leadership and strengthening the foundation for future growth.

2006

A New Era: API Architecture

Tim Fisher retires after 24 years of dedicated service. Architecture Plus, Inc. transitions to API Architecture, marking a new chapter while honoring the firm's legacy.

2013

Brian Rosenberger Joins

Brian Rosenberger is hired, bringing new perspectives and expertise to the team. His contributions would position him for future leadership within the firm.

2019

Brian's Partnership Transition Begins

Brian Rosenberger begins his partnership transition, continuing the firm's tradition of developing talent from within and ensuring leadership continuity.

2020

Frank Boots Retires

Co-founder Frank Boots retires after 38 years, leaving behind a legacy of excellence and the 'birdhouses to buildings' philosophy that continues to define the firm.

2025

Heidi Joins as Partner

Heidi joins the team as a partner, representing the continued evolution of API Architecture and its commitment to developing leadership for the next generation.

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Legacy Projects

Buildings that have shaped our community

Oak Valley Community Bank

Oak Valley Community Bank

1988 - Financial

Our design for their first branch helped establish Oak Valley as a cornerstone of local banking.

Central Valley Medical Center

Central Valley Medical Center

1992 - Healthcare

A 120-bed facility that set new standards for patient-centered healthcare design in the region.

Modesto City Schools

Modesto City Schools Modernization

1995-2020 - Education

25-year partnership modernizing over 30 schools, impacting thousands of students' lives.

Our Enduring Values

Principles that have guided us for four decades

01

Accessibility

Great architecture should be available to everyone. We work with clients of all sizes, from small businesses to major corporations.

02

Partnership

Every project is a collaboration. We listen first, design second, ensuring your vision drives every decision we make.

03

Excellence

No matter the project size, we bring the same commitment to quality, innovation, and attention to detail.

Looking to the Future

Building on tradition, embracing innovation

As we enter our fifth decade, API Architecture remains committed to the principles that have guided us from the beginning. We continue to evolve, embracing new technologies and sustainable practices while maintaining the personal touch that defines our relationships.

Our firm isn't named after our founders or current principals for a reason—we believe in building something larger than any individual. Every team member is a potential future owner, every project an opportunity to strengthen our community's fabric.

API modern studio
API team collaboration
API design process
API conference room

"From birdhouses to buildings—no project too small, no vision too grand."

Tim Fisher & Frank Boots

Architecture Plus, Inc. — Est. 1982