What are the opening hours?

Monday 9am - 6pm Tuesday 9am - 6pm Wednesday 9am - 6pm Thursday 9am - 6pm Friday 9am - 6pm

William Duff Architects, Inc.

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United States
San Francisco, CA
William Duff Architects, Inc.

We create architectural solutions for modern lifestyles and workplaces, delivering a vision-driven approach and skilled project management.

Professional innovators and impassioned designers—the people who comprise WDA’s staff bring an intellectual curiosity and joy of collaboration to our work. Our stewardship of each project, as well as our practice, is informed by a deep sense of responsibility to our clients and to sustainability.

06/10/2026

The most memorable hospitality experiences begin with a strong sense of place.⁠
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Whether designing restaurants, lounges, lodging, or destination retreats, we believe architecture should connect guests to a location's character while creating moments of comfort, discovery and delight.⁠
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This cabin study explored how a compact footprint can deliver an immersive luxury experience through thoughtful design, flexibility and a close relationship with nature.⁠
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Explore more of our hospitality work through the link in our bio.

03/25/2026

Designed as a sequence unfolding for the guest.⁠
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Napa Valley Winery brings production and hospitality into one continuous architectural experience—shaped by light, proportion, and movement through the landscape.⁠
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View the full project on our website. Link in Bio⁠
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Napa Valley Winery⁠
Landscape Architects: ⁠
Structural Engineer: ⁠
Mechanical Engineer: ⁠
Electrical & Civil Engineer, Planning Consultant: ⁠
Lighting Design:

03/10/2026

The San Francisco Decorator Showcase House is an inspiring collaboration across the design community, led by visionary interior designers and supported by builders, architects, artisans, and consultants who together transform a historic home each year—while raising funds for the University High School financial aid and scholarship program.⁠
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This year, our founder William Duff is honored to serve on the Showcase Board while WDA also contributes architectural guidance to a thoughtful redesign of the home’s circulation—helping create better flow through the historic Victorian for both the event and the future homeowners.⁠
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In this short conversation, William reflects on the inspiration behind our involvement and the collaborative spirit that makes the Showcase such a meaningful tradition for San Francisco’s design community.⁠
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Architecture that lives well.

Address

1275 Folsom Street
San Francisco, CA
94103

Opening Hours

Monday	9am - 6pm
Tuesday	9am - 6pm
Wednesday	9am - 6pm
Thursday	9am - 6pm
Friday	9am - 6pm

Website

http://www.wdarch.com/

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