IDF Studio is an award-winning residential and commercial interior design studio obsessed with daring creative and impeccable project management.

When we set out nearly a decade ago, we disliked parts of our industry. Unsavory traits like pretension or lack of transparency were the norm at some design houses, and we saw how both clients and their designers were let down. We knew most clients had great taste but lacked the logistical know how. They needed a thoughtful guide to safeguard them from potential design and financial pitfalls.

So, we created something different. We’ve cultivated a culture where being sincere is more important than someone else’s definition of stylish. We worked incredibly hard and left ego at the door.  We’ve built a network of vendors and partners that we treat like family. But most importantly, we spent years developing a flexible and airtight project process, allowing us to guide our clients through the [sometimes difficult] process of redesigning a space while removing anything that isn’t fully in their best interest.

We’re delighted that our results are spaces with genuine personality and committed clients that come back to us project after project. We’re proud to average 5 stars on both Yelp and Houzz, with dozens of positive reviews.

Founder + CEO

Kassin Adelman

Kassin established her award-winning firm in 2010 with a singular vision: unpretentious service with unparalleled results. Her team is celebrated for creating lively, authentic spaces that look and feel completely personal to each client.

Along with her impressive residential portfolio, Kassin has also overseen the design of some of the Bay Area’s premier office spaces, including the San Francisco headquarters of Airbnb. She sees a critical through line between her home and office projects: an inspiring space helps people thrive.

Kassin’s dedication to her clients’ individual tastes and her mastery of organizational systems and processes has earned her praise from the San Francisco Business Times, which named IDF Studio to its list of the top 25 Design Firms. The firm’s work has appeared in dozens of publications, including Elle Décor, Luxe, Dwell, HGTV Magazine, California Home & Design, San Francisco Magazine, SF Cottages & Gardens, and more.

Trained at UC Berkeley’s Interior Design and Architecture program, Kassin’s approach to every project boils down to practicality – the room has to look amazing and work for real life. Put simply, she’s invigorated by the potential to make any space extraordinary.

Kassin lives in Mill Valley with her husband and their two daughters.

Lead Designers

Edam Triffett, Senior Designer

Edam joined IDF Studio in early 2020 with a 15-year background in design and project management for clients spanning the world.

A native of Tasmania, Edam traveled extensively before studying design at the Interior Design Institute in Sydney. He spent nearly a decade in Brisbane building a remarkable portfolio of residential and commercial projects. In 2017, Edam moved stateside and earned additional design credentials from Syracuse University. He came to IDF Studio from Rosa Beltran Design in Los Angeles.

A well-rounded professional with an impeccable eye and an ardent devotion to his work, Edam prides himself on optimizing the tension between creativity and efficiency. He’s inspired by easy, livable spaces that pay tribute to their architectural heritage.

Edam’s design and styling work has been featured in publications such as Domino, Better Homes & Gardens, and Elle Décor.

Edam lives in a San Francisco Edwardian with his husband.

Anna Beurskens, Senior Designer

With nearly a decade of design experience, Anna’s approach is people-driven and process-oriented. Before joining IDF Studio, she held design positions with Starbucks, One Medical, and OTJ Architects.  

Growing up a self-proclaimed “military brat,” Anna moved about once a year. She credits her itinerant childhood for her ability to tap into the culture of her surroundings, and for her natural flexibility in shifting circumstances. After earning a Fine Arts degree from the Academy of Art University in San Francisco in 2013, Anna stayed put and calls the Bay Area home.   

Anna has contributed to an array of inspired commercial projects, ranging from the first Starbucks Reserve stores to a bespoke pediatric office on Union Street. Her signature: connecting the human experience to the design. 

Anna lives in San Francisco with her fiancé, Chris, and their cat, Chesterfield. An accomplished visual artist with a focus on fiber art, Anna founded Common Space, a community-driven arts and crafts retail space in the Outer Richmond neighborhood.  

Marcy Kiser, Designer

Marcy joined IDF Studio in 2019 after a ten-year career as a highly sought-after event designer and manager for intrepid clients such as Google, Microsoft, and Williams-Sonoma. Her meticulous attention to detail, logistical acumen, and her talent for space planning, made for a natural transition to the world of interiors.

Drawing on her experience producing bold, immersive events, Marcy approaches commercial spaces with an eye for distinctive brand experiences. Her firm grasp of the foundational principals of design, such as color and balance, equips her to collaborate with residential clients on imaginative spaces that function for day-to-day living.

Marcy studied Event Management as well as Interior Design at CSU Chico. She has an egalitarian attitude about design: beauty is for everyone. Her projects are notable for their loose, organic style and thoughtful use of texture.

Marcy lives in Petaluma with her fiancé.

Our Services

Interior Design
Interior Architecture
Kitchens + Baths
Space Planning
Custom Cabinetry + Millwork
Furniture Selection
Custom Furniture

Purchase Management
Construction Management
Window Treatments
Color Consulting
Art Curation
Branding + Signage
Styling + Accessories

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