• Warren and Company
This is a door to your new home

I'm Nanci Warren, ASID

Warren and Company

Here's what I do —
interior architecture & design
It goes much deeper than how your house looks — it extends to how you live and how well your space works for you. That's what makes a house a home. Architectural + Decorative + Functional + Beautiful.

My Mission
My mission is to help you express your personal style. I am committed to providing the meticulous planning and attention to detail your project deserves. Your home will reflect not only who you are, but your aesthetic, your budget and your long-term goals.


I specialize in upper-end residential remodeling and new construction. I also have experience in hospitality, multifamily, restaurant and commercial/industrial design.
Because of my focus on interior architecture, I appreciate the built environment and the impact spaces have on our well-being. My expertise embraces pre-construction services, such as space planning, scaled drawings, finish selection and documentation for budgeting, followed by design, color theory, furnishings and accessories. In this way, your home speaks to your needs and its own architectural integrity.

  • Space planning
  • Selection of all interior finishes & their specifications (plumbing fixtures, tile, stone, lighting, paint, cabinetry, appliances and architectural details)
  • Kitchen, bath, cabinet design
  • Selection of all furnishings, accessories, lighting and art procurement
  • Complete project coordination
  • Installation supervision


  • Pre-construction planning, detailed and scaled drawings
  • Detailed specifications for your estimating
  • Construction comprehension (I understand and value what you do)
  • Client liaison & coordination


1. Listen
No matter the project, it begins with careful listening — so I can learn everything I can about your style, your hopes and dreams.
2. Plan
My next first step is to develop a plan for your interiors — to scale. You can begin to visualize how your house will nurture your life.
3. Specify
I prepare a complete specification manual, which serves as an invaluable guidebook to all your interior finish selections. Your contractor can then price actual materials and labor costs for an accurate construction budget.
4. Communicate
This process is propelled by an open dialogue and give-and-take at every stage. At all times, we're working together toward a common goal.
5. Coordinate
This is a true collaboration. I coordinate with you, your builder and architect and other vendors, when appropriate, to help ensure all goes to plan.
6. Realize
I make sure every detail is crossed off the list. The end result is a home you can be proud of and comfortable in. What's more important than that?


I love what I do
I'm a professional member of the American Society of Interior Designers (ASID). I'm also an allied member of the American Institute of Architects, and I've been certified by the National Council for Interior Design Qualification since 1989. All that means I care enough about what I do to achieve the highest standards of my craft.
I bring those principles to your project, knowing it deserves the very best.
I love where I do it
I founded my interior architecture and design business, Warren and Company, in 1980. With many years in Sun Valley and in the Pacific Northwest, my home base is once again Ketchum, Idaho. I split my time and work projects with homeowners, architects and builders in Idaho, Washington and California, sharing these regions’ regard for the natural world.
Wherever your home base (or getaway), your new world awaits.

My Work

Contributing Photographers: Tim Brown Media, Dev Khalsa Hailey, Duane Gillette

411 Leadville Avenue North Suite 1 / Ketchum / ID / 83340
PO Box 2475 / Ketchum / ID / 83340
Sun Valley 208.726.7281