Studio Sarah Willmer Architecture

About Studio Sarah Willmer Architecture

Studio Sarah Willmer Architecture is an award-winning, nationally and internationally published architecture and interiors firm based in San Francisco, working across the Bay Area, Sonoma and Marin County. The practice is led by Sarah Willmer, who holds a Master of Architecture from Yale University and a Bachelor of Architecture from Syracuse University.

The studio was founded after fourteen years with several prominent firms, including Skidmore, Owings & Merrill, Polshek Partnership Architects and Anshen + Allen. The motivation was specific: a desire to stay intimately involved in the design process from concept through construction, rather than moving into the management role that scale usually imposes on senior architects.

Design Principles

Three principles are realised in every project - simplicity, spaciousness and light, and sustainability. The design process is guided by three corresponding decisions:

• Structure as a primary expression of space - the building's frame is expressed rather than concealed, so structure and spatial experience are resolved together
• The control and infusion of natural light - daylight treated as a material to be shaped, not simply admitted
• An environmentally sensitive and elegant material palette - restraint in material choice serving both aesthetic and ecological ends

Areas of Work

Private Residences

The core of the practice. Projects include the Two-Way House in San Francisco, conceived around pairing an original 1900 Victorian facade and traditional parlour with an open-plan, two-storey modern rear addition - a considered response to the challenge of adding contemporary space behind a protected historic frontage. Sonoma Retreat extends the residential work into rural Northern California.

Workplace

The studio designs commercial interiors, notably the Turn/River Capital headquarters, which transformed a generic tenant floor on the seventeenth storey of a San Francisco high-rise into a calm, collaborative workplace with fifty workstations, conference rooms at several scales, video-call rooms and shared spaces. The firm has also worked at the Shorebird campus in Mountain View.

Housing Research

Beyond commissioned work, the studio undertakes housing studies - including a design study of an eight-block area of San Francisco's Sunset district along the L Muni line, proposing three new housing prototypes. Speculative research of this kind engages directly with California's housing supply debate rather than waiting for a client to raise it.

Renovation and Historic Fabric

Much of the residential work involves existing buildings, particularly San Francisco's Victorian and Edwardian stock. This demands fluency in structural upgrading, seismic retrofit and planning approvals alongside design - and skill in making new work sit convincingly against old.

Recognition

The practice is award-winning and has been published nationally and internationally, with coverage in Interior Design, Archello, Architizer and design media following its residential and workplace projects.

Market Position

The studio competes on design quality and principal-level involvement rather than scale, serving Bay Area homeowners and workplace clients who want direct access to the designer from first sketch to final detail.

Why AEC Teams Should Know the Studio

For architects interested in daylight-driven design, sensitive additions to historic housing, or how a senior designer structures a practice around staying close to the work, Studio Sarah Willmer is a useful contemporary reference in the built environment.