William Duff Architects, Inc.

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.

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.

11/13/2025

Thanks to the and for an amazing event last week in Deer Valley. The conversations, the landscape, and most of all, the connections we made were all inspiring. We’re beyond grateful to be members of this talented group.

10/15/2025

We’re proud to support the 20th edition of “Small Firms, Great Projects!” We hope to see you at the magazine launch party tomorrow. To get your own copy, join us at the event! Register at link in bio.

Please join us in welcoming Patrick Kruger, our new Hospitality Principal! His spectrum of experience, industry knowledg...
03/27/2025

Please join us in welcoming Patrick Kruger, our new Hospitality Principal! His spectrum of experience, industry knowledge and design talent will enable us to expand into boutique hospitality and resort lodging projects. With expertise in hospitality and high-end residential design that spans globally, we’re thrilled to have him! To learn more about Patrick and his unique background and interests, tap the link in our bio.

How can we design environments that create unforgettable guest experiences? We always keep this question in mind when cr...
03/25/2025

How can we design environments that create unforgettable guest experiences? We always keep this question in mind when crafting hospitality spaces like our latest aviation project - the Lounge at . From weaving in brand identity to creating a sense of place through materiality and more, no stone goes unturned in our hospitality design process. Tap the link in our bio for all the details on how we made the Alaska Lounge truly memorable.
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📷 Photographer:
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Project Team
General Contractor:
Structural Engineer:
MEP: Interface Engineering ⁠
Acoustics, AV, LEED:
Food Service Design: Design West Partnership⁠
Lighting Designer:
Metal Panels:
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Happy St. Patrick’s Day! ☘️ Nothing gets us in the spirit like highlighting our project, Ireland House—the shared headqu...
03/17/2025

Happy St. Patrick’s Day! ☘️ Nothing gets us in the spirit like highlighting our project, Ireland House—the shared headquarters for the Consulate General of Ireland , Tourism Ireland , and Enterprise Ireland .

Irish culture and heritage are thoughtfully incorporated into the design of the entire space. Ancient Irish runes are laser-etched throughout the wooden hearth element in the reception hall. These symbols are inspired by Western Europe’s largest collection of megalithic art, found in Ireland’s rich archaeological landscape of Brú na Bóinne. Head to the link in our bio to see the rest of this project. 🇮🇪

Project Team:
Photographer: David Wakely Photography
General Contractors:
Project Manager & Cost:
MEP: Amit Wadhwa & Associates
Structural: Forell Elsesser
Security: Microbiz Security Company
AV/ Acoustics: Salter
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02/10/2025

It's official! Our project, the House of Light & Shadow is in the running for the 2025 Luxe RED Awards Readers' Choice! https://luxeredawards.awardsplatform.com/entry/vote/KpeVdeOE/ZANkgJnP?search=a562c07009b50c1b-65
Check out the incredible transformation this historic San Francisco home underwent in these before-and-after shots! Please visit the link to cast your vote in the Restoration & Renovation category daily through Friday, February 14 - we would be honored.

Project Team:
Photographer: Matthew Millman
General Contractor: VONNEGUT THOREAU CONSTRUCTION
Structural Engineer: Holmes US
Lighting Designer: ⁠DAVID SCOTT LIGHTING LLC
MEP Engineers: Monterey Energy Group
AV Consultant: AVDG
Interior Designer: Niche Interiors
Civil Engineer: Lea & Braze Engineering
Geotechnical Engineer: Murray Engineers, Inc. Murray Engineers, Inc.
Landscape Architect: Strata Landscape Architecture

Luxe Interiors + Design

12/31/2024

We're ending 2024 on a high note! Take a look back at our most-loved posts from an incredible year. Thanks for being here with us, cheers to 2025! 🥂

1. The House of Light & Shadow debuts
2. The Alaska Airlines Lounge at San Francisco International Airport (SFO), winner of a USGBC California award of merit
3. The new LEGO store at San Francisco International Airport (SFO)
4. AIA San Francisco - AIASF features our office in Small Firms, Great Projects
5. Community Practice Leader David Plotkin celebrates 10 years at WDA
6. Meet the Candidate Mixer with Aaron Peskin
7. Meet the Candidate Mixer with Daniel Lurie
8. Meet the Candidate Mixer with London Breed
9. Our office, winner of an San Francisco Design Week award of merit
10. Introducing the House of Light & Shadow
11. Grand opening of our new restaurant project, Kaiyo Restaurant
12. Bi-coastal networking blitz with Gold Collective
13. New team members at WDA
14. Introducing the new Air France lounge at San Francisco International Airport (SFO)
15. Business Development & Marketing Director Sarah Mergy celebrates 5 years at WDA and becomes an owner

12/25/2024

Happy holidays from all of us at WDA! As we reflect on this year, we extend our sincerest thanks to our clients, partners and team. Wishing you all a joyful season filled with peace, happiness, and quality time with loved ones.

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

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