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Phelan Jon Interior Design was born out of a passion for fabrics and custom window treatments and has evolved into a full-service space planning and interior design firm co-located in San Francisco and Phoenix. We are a family-owned firm with, collectively, more than 30 years of experience in guiding both residential and commercial clients through what is truly an exciting and rewarding process.

As design professionals, we draw inspiration from several sources: our clients and their favorite things, museums, home tours, architecture, and the colors and textures in both the natural and the modern world around us.  Our goal is to generate creative, functional ideas and options with which to develop a welcoming, comfortable space where you feel you belong.

Importantly, we protect your time and budget by streamlining the interior design process, avoiding costly distractions and foregoing passing trends in favor of more classic, reliable products and styles.

For our commercial and retail clients—including restaurants, night clubs, retail shops and more—Maison4 Interior Design focuses on optimal space planning, eye-catching lighting and welcoming colors to draw in patrons and provide a backdrop for a positive experience. The innovative use of textiles and furniture/fixture placement can be especially successful in increasing foot traffic.

Whether you’re refreshing a single space or a longtime residence, personalizing a newly purchased home, or reworking your commercial space, we welcome the opportunity to partner with you.