About Us

frenchCALIFORNIA is a globally-minded interior design and branding studio composed of an award-winning team from various backgrounds and cultures.

Our Philosophy

ELEVATED DESIGN & AESTHETICS

Founded by Paris-born Guillaume Coutheillas, frenchCALIFORNIA has forged lasting relationships with the world’s top collectible design and art galleries, real estate developers and collectors, curating unmatched interiors.


MULTICULTURAL APPROACH

Composed of a team from all backgrounds and walks of life, frenchCALIFORNIA embodies a multicultural ethos with all our projects, bringing inspiration from many countries, cultures and genres to our design aesthetic.

What We Offer

  • We believe in creating beautiful homes that capture your style. With a strong attention to detail, our Architectural-Digest-approved team will create a space that feels like home.

  • We work with builders, brokers, and homeowners and know how important it is to sell a home. Our award-winning team will make sure your space is more than just a property. We will make it a destination.

  • Turnkey service from purchasing to installation. Working with artists and gallery owners across the world, we find unique pieces that bring your space to the next level.

  • We support you by providing the research necessary to shorten time on the market and ask a competitive price.

  • Looking to create a brand for your condominium, multifamily property or hospitality project? Our creative team specializes in bringing your ideas to life through branding and activation.

  • Our creative team works with brands to find their identity and design pieces that highlight their individuality and uniqueness.

ABOUT THE FOUNDER

Guillaume Coutheillas is a Paris-born interior designer and branding expert and the Founder of frenchCALIFORNIA, a globally minded interior design and branding studio creating unmatched commercial and residential interiors. 

frenchCALIFORNIA’s design capabilities include turnkey residential renovations and interior furnishings, art curation, concept development, creative direction, model residence staging, commercial, exhibition and commercial design and FF&E selection.

Guillaume is actively involved in the design community, supporting institutions like the San Francisco Museum of Modern Art and the de Young Museum, and participating as a member of the Urban Land Institute, Interior Design Society, and Designer Society of America.

 AWARDS & RECOGNITION

frenchCALIFORNIA’s work has been recognized by prestigious design awards, including the Interior Design Society’s 2021 360 Design Excellence Award, and has been featured in renowned publications such as Interior Design Magazine, Architectural Digest, and Robb Report. The studio’s clientele includes prominent names like Hines, Tishman Speyer, and Studio Gang Architects.

Our Team

Stephanie
Marketing + Strategy

Bernadette
Content Manager

Catherine
Senior Designer

Leo
Designer

Kevin
Web Programmer

Chelsea
Designer

Jasmine
Interior Designer

Kay
Senior Project Manager

Georgie
Project Manager

Charlie
Copywriter

Bruna
Interior Designer

Jake
Architect / Designer

Serena
Brand Assistant

Olivia
Interior Designer

Charlotte + Axel
Senior Designer & Illustrator

Patricia
Marketing + Analytics

Sam
Interior Designer

Bobby
Interior Designer