People

John Davis, AIA, NCARB

Principal

Executive Vice President

Mark Hornberger, FAIA

President

Founding Principal

Burton Miller, FAIA

Principal/Senior Vice President

Design Director - Asia Pacific

Mark Hornberger, FAIA

President

Founding Principal

Mark Hornberger

Mark Hornberger, FAIA

President

Founding Principal

As Principal-in-Charge of Design, Mark Hornberger is responsible for the coordination and management of Hornberger + Worstell’s planning and design effort for all major projects, focusing on mixed-use, hospitality, multi-family residential, corporate office and higher education projects. In addition, he leads the permit approval processing and public review efforts of the firm.

Over the last two decades, Mr. Hornberger and his design team have completed over forty major projects. These designs are focused on sites across North America, Latin America, and the Pacific Rim/Asia.

Mr. Hornberger’s architecture consistently employs regional materials and geographically inspired forms to provide work environments, recreational amenities, lodging, dining, and meeting/gathering spaces. His gracious projects, with their focus on the relationship of the buildings to the landscape and cityscape, provide inviting access to scenic and city resources in a variety of urban and resort locales.

He combines his expert knowledge of mixed-use requirements with the firm’s regionalist sensitivity to context and materials. The projects derive their distinct identities from the thoughtful and innovative use of building materials and skilled local labor brought together with a considered use of advanced construction techniques.

The sense of place in his projects is heightened by an ability to achieve a seamless interplay between inside and out—his trademark “livable landscape.” He pioneered the design of outdoor function spaces and water features as integrated extensions of the architecture, allowing users and visitors to enjoy fully the unique climate, light and vistas of a particular region throughout the individual properties.

The success of his projects has won Mr. Hornberger the respect of his peers in the development and hospitality communities, where he speaks on design related issues for organizations such as the Urban Land Institute, Resort Forum. He has chaired the Design Awards Committee of the AIA California Council, and, from 1992 to 1994, he was Chair of the Architecture and Design Forum of the San Francisco Museum of Modern Art. He was Chair of the AIA Capital Forum, is a past Director of both AIA San Francisco Chapter and the AIA California Council and is current Chair of the AIACC Task Force on CEQA reform.

  • Grand Hyatt SFO
    San Francisco International Airport, CA
  • UCLA Luskin Conference Center
    Los Angeles, CA
  • The Ritz-Carlton, Lake Tahoe
    Truckee, CA
  • Omni San Diego
    San Diego, CA
  • W San Francisco
    San Francisco, CA
  • San Jose Marriott
    San Jose, CA
  • SOMA Mission Bay Hotel
    San Francisco, CA
  • W Scottsdale Hotel and Residences
    Scottsdale, AZ
  • The Majestic Yosemite Hotel
    Yosemite National Park, CA
  • Old Solano Courthouse
    Fairfield, CA
  • The Olympic Club
    San Francisco, CA
  • JW Marriott Desert Ridge
    Phoenix, AZ
  • Villa Montane
    Beaver Creek, CO
  • Hyatt Regency Scottsdale
    Scottsdale, AZ
  • Nextel Regional Headquarters
    Walnut Creek, CA
  • Hotel Mount Fuji
    Yamanashi-ken, Japan

John Davis, AIA, NCARB

Principal

Executive Vice President

John Davis

John Davis, AIA, NCARB

Principal

Executive Vice President

An honors graduate of the University of Colorado College of Environmental Design, John Davis has over thirty years of architecture experience, including significant contributions to academic, hospitality, and historic rehabilitation projects. His expertise in programming and in relating the scale of interior architecture to the surrounding site results in the successful integration of inside and outside environments.

Mr. Davis has enjoyed over twenty five years of practice with Hornberger + Worstell. As Managing Principal and CFO, Mr. Davis oversees the management of studio, the organization of project teams, and the oversight of project schedules and budgets. A registered architect in California since 1983, John Davis is an active member of the AIA.

  • Grand Hyatt SFO
    San Francisco International Airport, CA
  • UCLA Luskin Conference Center
    Los Angeles, CA
  • The WELL, Sacramento State University
    Sacramento, CA
  • CSU San Marcos University Student Union
    San Marcos, CA
  • Sonoma State University Student Center
    Rohnert Park, CA
  • Old Solano Courthouse
    Fairfield, CA
  • The Majestic Yosemite Hotel
    Yosemite National Park, CA
  • The Olympic Club
    San Francisco, CA
  • Hyatt Regency Scottsdale
    Scottsdale, AZ
  • Villa Montane
    Beaver Creek, CO
  • InterContinental San Francisco
    San Francisco, CA
  • Nextel Regional Headquarters
    Walnut Creek, CA

Burton Miller, FAIA

Principal/Senior Vice President

Design Director - Asia Pacific

Burton Miller

Burton Miller, FAIA

Principal/Senior Vice President

Design Director - Asia Pacific

A graduate of Cornell University’s College of Architecture, Art and Planning and Design Principal / Design Director – Asia Pacific, Burton Miller has over thirty years of experience in the design and implementation of complex, mixed-use developments involving a broad spectrum of building types. He has specialized expertise in the architectural master planning and urban design of large-scale multi-building projects in both urban and natural environments integrating hospitality, living, working, entertainment and the public realm.

Burton Miller has served on the Site Plan and Architectural Review (SPAR) Committee for the City of Mountain View, and the City of Mill Valley Planning Commission, the Miller Avenue Precise Plan Citizens Advisory Committee, Mill Valley 2040 General Plan Advisory Committee and Zoning and Design Guidelines Advisory Committee. His extensive public process, regulatory and jurisdictional agency experience as both applicant and city commissioner / committee member serves to effectively inform project entitlement processes.

He has taught architectural design, urban design, drawing and visual communication at Cornell University, Drexel University and Philadelphia College of Art.

Overseas experience includes buildings and projects in Indonesia, Singapore, Malaysia, Hong Kong, China, Korea, Japan, The Philippines, Vietnam, Thailand, Taiwan, New Zealand, Ukraine and Russian Federation.

  • Beijing Secret Garden All-Seasons Resort
    Chongli County, Heibei Province, China
  • Parkyard Shanghai
    Shanghai, China
  • The WELL, Sacramento State University
    Sacramento, CA
  • The Olympic Club
    San Francisco, CA
  • California International Trade Center
    West Sacramento, CA

Chris Apicella, AIA, LEED AP

Vice President

Chris Apicella

Chris Apicella, AIA, LEED AP

Vice President

I came to architecture in a roundabout way: I taught English in Spain and worked on the trading floor of a New York investment bank before I ended up in architecture school. But these early experiences gave me a more nuanced view of the world, and have shaped my career in the years since. I love hearing a friend or colleague say “I had no idea!” when coming across one of our projects. After spending so many years focused on the details of a project, from design through construction, to step back and see the work appreciated is a privilege.

Arlene Banducci

Associate

Arlene Banducci

Arlene Banducci

Associate

I loved watching my grandfather, who was a carpenter, use a simple hand plane to create these smooth rich colored wood cabinet pieces. When I decided to become an architect, it was due in large part to his influence. 

Karen Bass

Associate

Finance Manager

Karen Bass

Karen Bass

Associate

Finance Manager

I am motivated by our staff, and I believe that strong teams are very important. I play volleyball, where a solid team dynamic is at the heart of the game. Together, we set ambitious goals and work hard to achieve them. If mistakes are made along the way, it's an opportunity to grow and improve, and ultimately reach the desired outcome.

Nate Baratta

Designer

Nate Baratta

Nate Baratta

Designer

I grew up in Colorado, went to school in New York, and have started my career in the Bay Area. I am inspired by travel: I’ve recently spent time in Europe, observing the differences in culture, and how those differences change the way people interact with the world around them, both physically and psychologically. Bringing those insights into my work, and learning more about how spaces affect society and human interaction, is central to my interest in architecture.

Edward Beltran

Associate

Marketing Coordinator

Graphic Designer

Edward Beltran

Edward Beltran

Associate

Marketing Coordinator

Graphic Designer

Location can tell you a lot--not just about where a place is, but its people, its culture. I’ve been interested in maps and cartography for most of my life, and considering our projects through the specifics of their geography has always yielded helpful insights. A major part of what I do is presenting our projects to clients, so being as informed as possible about the context of the project is essential. How does our work reflect the culture, identity, audience, and other diverse factors that are important to the client? That bigger picture is what inspires my professional work.

Jim Brenza

Associate

Project Architect

Jim Brenza

Jim Brenza

Associate

Project Architect

There are many culinary styles and cooking techniques around the world. They are often derived as a response to available local ingredients and cultural influences. When we enjoy a good meal, we enjoy it because it is the sum of its ingredients and the various proportions and methods of preparation. Similarly, when we enjoy a building, we don't think about how we enjoy each piece of glass, concrete, and stone, but rather the wholistic experience of a space.

Grisha Camargo

Designer

Grisha Camargo

Grisha Camargo

Designer

I have spent a lot of time exploring the Bay Area art scene, and the spaces where art is made. I have gained an appreciation for how the varied and beautiful industrial and utilitarian structures in the area have come to house purpose-built spaces for art-making. This has led to my awe of the possibilities of architecture, and specifically my interest in the rehabilitation of old and historical buildings for public use.

Co Chau, AIA

Senior Associate

Senior Design Architect

Co Chau

Co Chau, AIA

Senior Associate

Senior Design Architect

I've always been an advocate of applying the creative arts to problem solving. Client design briefs often contain unique challenges and untested ideas, which require creative ways of evaluating, sorting and ultimately solving problems in sophisticated ways. Good design solutions usually satisfy a physical need while provoking delight and contemplation.

Mubai Chen

Designer

Mubai Chen

Mubai Chen

Designer

Jim Degener

Senior Associate

Senior Project Architect

Jim Degener

Jim Degener

Senior Associate

Senior Project Architect

I grew up in an American city amid well designed buildings and spaces created six decades earlier during a brief period of enlightenment by a race of people that had moved on. My interest in architecture grew out of the conflict between those interested in preserving and rehabilitating the old buildings, and those keen to convert them into above-ground parking.

I’ve been working in the field of architecture in the Bay Area since 1979. I find success in the moments when the drawings start to really communicate, and when, on the job site, I get past being the guy wearing a tie to the guy the workers know has the answers and paths to solutions.

Hangsong Ge, LEED AP

Designer

Hangsong Ge

Hangsong Ge, LEED AP

Designer

I chose architecture as a profession with a comprehensive program of study and many possible career avenues. I am originally from China; I came to the Bay Area in 2014 and love the climate here. I'm motivated by being on a team that solves complex problems every day. Contributing my skills to solving these challenges is my personal path to success.

Becky Gordon

Project Administrator

Becky Gordon

Becky Gordon

Project Administrator

I came to San Francisco in 1975 and have lived in the same apartment since then. I love working in such a creative atmosphere, with a small group of people I can call “family.” In my work, I handle a lot of information, and accuracy is everything. When questions come up, it’s very satisfying to be able to find the answer.

Eric Gunther, AIA, CSI, CDT, LEED AP

Senior Associate

Senior Project Director

Eric Gunther

Eric Gunther, AIA, CSI, CDT, LEED AP

Senior Associate

Senior Project Director

Ultimately, a project is successful if people use it. Seeing one of our recent university projects seemingly always packed with students made it clear that the project had fulfilled its goals. My work is about creating spaces that people can experience, interact with and enjoy. I love the feeling of being able to point out a project to someone and say that I helped to create it.

Susan Chalfant Gunther

Project Manager

Susan Chalfant Gunther

Susan Chalfant Gunther

Project Manager

Mike Ho, AIA

Director-China

Mike Ho

Mike Ho, AIA

Director-China

Clayton Katsuyoshi, LEED AP

Associate

Senior Project Architect

Clayton Katsuyoshi

Clayton Katsuyoshi, LEED AP

Associate

Senior Project Architect

My focus is interior architecture, which requires particular attention to detail, while simultaneously being aware of the bigger picture and how all of the parts of the project need to work cohesively. Diving into the fine grain of a project is something I enjoy, especially when supported by a talented and enthusiastic team. Together, we explore new possibilities and take projects to interesting and delightful outcomes. When you step back and see it all come together, it's magical.

Junxia (Freda) Li, LEED AP

Designer

Junxia (Freda) Li

Junxia (Freda) Li, LEED AP

Designer

I am drawn to architecture because, through it, I can express my understanding of the relationship between building, nature, and people. I can use the process as a way of better understanding how other people think. There is so much to learn, but the great thing in this profession is working with more experienced colleagues, who offer input and encouragement to help navigate big challenges.

Stephen Li, AIA

Senior Project Architect

Stephen Li

Stephen Li, AIA

Senior Project Architect

Andrew McCormick

Communications Specialist

Andrew McCormick

Andrew McCormick

Communications Specialist

It's important to find opportunities to be creative in everyday tasks. There's always a new way to look at a problem. It's easy to get caught up in the work and miss an opportunity to do something interesting, but when I step back and make myself try a more novel approach, I'm very often rewarded with a more interesting result.

Lynn Mezzatesta, AIA, NCARB

Senior Associate

Senior Project Architect

Lynn Mezzatesta

Lynn Mezzatesta, AIA, NCARB

Senior Associate

Senior Project Architect

I caught the architecture bug very early in life, having had the privilege of growing up in an historic area in New York dating from the mid-1600s with a rich architectural heritage. Successful architecture, in my opinion, resides in the details, from large scale in the planning stage to small scale in the final detailing of how systems and materials come together. Elegant, seamless detailing is my personal measure of success.

Josie Morgan

Project Coordinator

Josie Morgan

Josie Morgan

Project Coordinator

I originally chose to study architecture because I thought the profession would provide a good balance of technical and creative work. By the end of college, I was less interested in buildings specifically and more interested in process. I like problem-solving and learning, and I find people inspiring. If there is a clear story to tell behind the work, it’s on the right track.

Lindsay Noble, LEED AP

Architect

BIM Specialist

Lindsay Noble

Lindsay Noble, LEED AP

Architect

BIM Specialist

Virtual design and construction is the future of our profession and I am an active participant in its evolving role. A fully realized virtual representation of a design concept benefits all stakeholders of a project, allowing for real-time simulations in complex environments that were unachievable before. I strive to incorporate this approach into the projects I contribute to, and to cultivate a deeper understanding of and appreciation for virtual design and construction among my peers.

Sam Pedapenki

Senior Associate

Sam Pedapenki

Sam Pedapenki

Senior Associate

Hiroyuki Sakurai, LEED AP

Associate

Hiroyuki Sakurai

Hiroyuki Sakurai, LEED AP

Associate

When I was a child in Japan, my parents worked with an architect who was a relative when they built their house. I was amazed how the architect seemed to transform our dream into reality. I studied architecture and became a licensed architect in Japan, and moved to the U.S. in 1999. I am motivated most by the sense of achievement I feel both in incremental progress over the course of the day, and in the outcome of the project in the long term.

Mike Semple, AIA

Associate

Project Director

Mike Semple

Mike Semple, AIA

Associate

Project Director

Architecture provides me with an outlet for my favorite passions, art and science. It never gets boring and is always a challenge. I have been in the field for a while, but I continue to visit new and old buildings, evaluating their successes as well as their shortcomings. The path to real inspiration in this work involves putting the most diverse teams of individuals and personalities together to work cohesively toward a common goal.

Wing Tong

Senior Associate

IT Director

Wing Tong

Wing Tong

Senior Associate

IT Director

I'm originally from Sacramento, but the culture of the Bay Area proved irresistable. I've provided IT services at Hornberger + Worstell for a long time, which I've balanced with time spent on personal artwork and photography.

Gloria Ge Wang

Designer

Gloria Ge Wang

Gloria Ge Wang

Designer

I recently moved to the Bay Area from China. Years ago, I noticed how architects play a role in the happiness of others: even relatively small-scale projects like individual homes make a huge difference in the lives of others. I wanted to be a part of that process, and help make the world a better place.

Grace Weng, LEED AP

Senior Designer

Grace Weng

Grace Weng, LEED AP

Senior Designer

For people who work in the field of architecture, it's essential and natural to care deeply about the work we do. Our job is to create places for people to enjoy. Putting my best efforts and high standards into the work I do is very important to me, because the results will be that much better because of it.

Jack Worstell, AIA

Co-Founding Principal

Architect Emeritus

Jack Worstell

Jack Worstell, AIA

Co-Founding Principal

Architect Emeritus

Randy Zwicker

Senior Associate

Senior Designer

Randy Zwicker

Randy Zwicker

Senior Associate

Senior Designer

Success to me is when a project inspires its users to relax and connect with the land, local culture, and people. Making these connections myself is a major source of inspiration, and this motivates me to provide others with the framework for a newfound appreciation of place.