William Duff Architects
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William Duff Architects (WDA) designs thoughtful, timeless architecture shaped by clarity, craftsmanship, and a deep connection to place. Founded in San Francisco, the firm works with clients across diverse regions to create enduring residential and hospitality environments tailored to each client’s story and vision. Our work responds to context with an artist’s sensibility—knowing when restraint strengthens a design and when expression brings it to life. With capabilities across multiple sectors, the firm is particularly recognized for its design leadership in high-end residential and hospitality environments. Backed by deep technical expertise and disciplined project management, WDA approaches every project as a collaborative partnership—prioritizing service, communication, and thoughtful execution from concept through completion.
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Business details
- Category:
- Architects
- Business focus:
- Residential & Commercial
- Verified ArchiPro member since:
- 2026
- Award winning professional:
- 11 awards
House of Light and Shadow
William Duff Architects
Featured Projects by
William Duff Architects
Who we are
William S Duff Jr, FAIA
Founder, Managing Principal
Jim Westover, AIA
Principal, Residential Studio Leader
Patrick Kruger
Principal, Hospitality Studio Leader
