Creating places people love.

At TEF Design we believe that extraordinary results are achieved through authentic collaboration with our clients. Our work reflects the unique circumstances of each client and commission with an approach that focuses on listening, open communication, and follow through. 

Established in 1997, we are an architecture and interior design firm located in San Francisco. Our staff of over 30 is distinguished by the convergence of “large firm” experience delivered through the culture and care of a small practice. We combine these skills with a deep commitment to craftsmanship, value, and responsibility to create memorable places where people come together to share ideas and build community.

While every project we design is an original expression, each shares a common framework of design principles. We seek modern, economic, and responsible solutions that are optimistic, open, and warm; that foster community, health, and well-being; and that are emotionally-satisfying to those who visit, work, and live in them. 

Architecture

Construction

Real Estate

TEF Design

TEF Design's headquarters in San Francisco, CA, United States

Douglas Tom

Diana Hayton Aia

Delaney Shea

Maryam Rostami

Jennifer Tulley

Bobbie Fisch

Regina Leon

The Design Team at TEF Design is dedicated to crafting innovative architectural and interior environments that resonate with the essence of each client's vision. Through collaborative processes, team members—including architects and designers—work together to translate client needs into bespoke designs that promote community, well-being, and emotional connection, all while ensuring sustainability and responsible practices. Their commitment to open communication and meticulous craftsmanship results in unique spaces that foster interaction and enhance the quality of life for all users.

Design Team

The Engineering Team at TEF Design collaborates closely with architects and project managers to ensure structural integrity and functionality in all design projects. They are responsible for developing innovative engineering solutions that align with the firm’s commitment to modern, responsible, and community-focused designs. By integrating advanced engineering principles with a deep understanding of craftsmanship, the team helps create spaces that are not only aesthetically pleasing but also safe, sustainable, and reflective of the diverse needs of users.

Engineering Team

The Leadership Team at TEF Design drives the strategic vision and operational excellence of the firm. Comprising experienced executives and architects, this team cultivates an innovative and collaborative culture, ensuring that each project reflects the unique needs of clients while adhering to the core design principles of community, well-being, and responsibility. They actively engage in forging relationships, guiding project direction, and fostering an environment where creativity and craftsmanship thrive.

TEF Design

Org chart

Teams

Design Team

Engineering Team

Leadership Team

Offices

TEF Design

Org chart

Teams

Design Team

Engineering Team

Leadership Team

Offices

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