The Studio
Kate DeWitt Design is a boutique interior design studio based in Sausalito, California, serving clients throughout Marin, San Francisco, and the Bay Area. We specialize in creating spaces that feel intentional, layered, and unmistakably personal — from full home renovations to thoughtful styling edits.
Every project is approached with the same level of care: deep listening, meticulous sourcing, and a commitment to getting the details right. Kate works alongside a talented design team to ensure every project receives the attention it deserves.
The Designer
My career began working alongside some of San Francisco's top interior designers, where I developed a deep appreciation for craft, quality, and the kind of attention to detail that makes a space truly exceptional. In 2022, I opened Kate DeWitt Design with a simple but unwavering belief: your home should feel unmistakably like you.
I'm drawn to spaces that are whimsical yet elegant, collected rather than decorated, and full of the things that make you genuinely happy to come home. When I'm not working with clients, you can find me in my seaside studio in Sausalito, sourcing something unexpected, or sharing the behind-the-scenes of studio life on Instagram.
Frequently Asked Questions
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We’re based in Sausalito and primarily serves clients throughout Marin County, San Francisco, and the greater Bay Area. We also take on projects outside the Bay Area and are available to travel for the right project. Virtual design consultations are available for clients anywhere.
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It depends on the scope of your project. Full-service design clients are taken on through a monthly retainer starting at $4,000. Design Direction & Styling projects start at $2,000 as a flat project fee. Virtual Design Consultations are a flat fee of $400. All pricing is discussed during our intro call so we can find the right fit for your needs.
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Your total investment includes both design fees and your furniture and product budget. Most projects range from $10,000 on the lower end to $75,000 and above for full renovations and larger homes. We'll talk through realistic budget expectations during our intro call.
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It depends on scope. A styling or direction project can be completed in a matter of weeks, while a full-service renovation can take several months. We'll give you a realistic timeline at the start of every project.
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Yes. We regularly collaborate with contractors, architects, and builders on renovation and new construction projects throughout the Bay Area. If you're in the early stages of a build or renovation, the earlier you bring us in the better.
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Absolutely! Not every project needs to be a whole home overhaul. Our Design Direction & Styling service is perfect for clients who want focused, expert help on a single space or specific design challenge.
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That's what the intro call is for. We'll talk through your project and point you in the right direction — no pressure, no commitment.
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Simply fill out the inquiry form or reach out directly and we'll schedule a complimentary intro call. We'd love to hear about your space.
Kind Words
“Kate transformed our home in ways we couldn't have imagined on our own. She knew exactly who to call and how to get things done. Our house finally feels like it was designed for us, and we get compliments every time someone walks through the door.”
— Mark & Cara“Working with Kate is a fun, creative collaboration. When I hired Kate, I'd moved into a very nice place that I wasn't really relating to. Now, thanks to Kate's placement suggestions and the things we worked together to buy, I open my door and feel happily at home. She brings a fresh, refined and insightful sense of taste and style - while being mindful of the client's budget. Best of all, she is a delight to be with so, what can be a stressful experience, is fun.”
— Linda“Working with Kate was a joy! I thought I knew what I wanted but she expanded my perspective and introduced me to new concepts, while still focusing on my personal style. Her level of detail, creativity, and concierge style of coordinating the entire design process exceeded my expectations.”
— Annie