About Studio William Hefner

Los Angeles, CA

“Design is problem solving.”

William Hefner and Kazuko Hoshino oversee Studio William Hefner, their Los Angeles-based design firm specializing in high-end luxury residential architecture, interior design, and landscape.

William, an architect, and Kazuko, an interior designer, share a passion for residential architecture, their expertise encompassing a vast array of styles from the highly contemporary to the deeply historic. Through this crossover they have realized that each style has benefitted from their knowledge of the other – modern houses are richer in materials, more complex in their details, and thusly more comfortable to its inhabitants; historic projects are less fussy, more tailored, resulting in spaces better suited to the needs and tendencies of contemporary life.

William’s expertise in architecture and deep appreciation for interior design and landscape often culminates in the three merging seamlessly – environments emerge which embrace outdoor views animated by an ever-shifting play of natural light; the rooms connect organically to the furnishings within them. By combining these three disciplines within their firm, they are able to ensure that each distinct design concept integrates with one another and that the vision of the homeowner is expressed in every aspect of the work.

Kazuko’s artistic talents range from sculpture to custom textile and furniture design characterized by subtle palettes and refined elegance indicative of her home country, Japan. Her pieces have sensuous, simple lines merging minimalism with opulence, indulgence with practicality, a delicate balance that creates spaces that are both serene and inspiring.

They are a perfect match coming together to merge their highly creative visions. Multi-cultured and eclectic, their sophisticated styles, born from extensive world travel, both compliment and contrast each other with a cosmopolitan elegance. Gaining insight from the client, their staff and each other, together they create designs that are layered in calming neutral palettes and inviting textures, with warmth and sophistication. Widely published both nationally and internationally, they have justly earned their place in the Robb Report as one of the top 30 architecture firms in the world.

In an effort to broaden their exposure to the public, SWH is offering a collection of pieces chosen from some of their most successful projects over the years of creating environments which enrich the client’s lives and provide serene sanctuaries to share with their loved ones and friends. Always striving to reach that next level, these pieces are the result of continuous refinements.





Ten Questions

What’s your go-to classic color choice?
William: Black. / Kazuko: Black or Gray.
Is there a hotel that’s most inspired your work while traveling?
William: Aman Resorts.
Which pieces of technology do you use to document design inspiration?
William: Even though I constantly invest in the latest hi-tech devices, I always seem to return to the simple magazine tear sheet. I have a 6'x 4' pin-up board in my office.
Where do you go to spot new style?
William: Omotosando,Tokyo. / Kazuko: Stockholm, Sweden.
Do you have a favorite restaurant (for the design and the food, of course)?
William: Atelier Joel Robochan in Japan or Paris. / Kazuko: Inakaya in Tokyo.
What’s your favorite small museum in the world?
Kazuko: Picasso Museum.
How do you usually start your weekend?
William: An early breakfast with the family at Joan's on Third, Los Angeles.
Who or what is your biggest design influence?
William: France - the design, food, wines. / Kazuko: My home country,Japan. A Less is More philosophy.
How do you keep it all together?
William: Working too much. / Kazuko: By having a lot of talented people on our staff.
Design a garden: groomed or freestyle?
William: Groomed! I drive the gardeners crazy! / Kazuko: Freestyle!

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