James Duncan is a prestigious full-service interior design firm, catering to clients who value exceptional design. Our firm comprises a highly skilled and dynamic team of professionals, renowned for their remarkable talent, unwavering enthusiasm, and extensive experience. We pride ourselves on offering a refined, well-traveled, and timeless approach to design. Fluent in English, Spanish, French, and Portuguese, our international team effortlessly manages projects both locally and abroad.

At the core of our success lies our unwavering commitment to precise spatial programming. We recognize that comprehending our clients' lifestyles is a pivotal factor in every project we undertake.

Interior Architecture

We excel in delivering meticulously detailed drawings, setting new standards of excellence in the industry.

Furniture Design

For the past 18 years, James Duncan has proudly presented an exclusive, to-the-trade custom furniture line in New York and Miami. Our forte lies in creating custom or one-of-a-kind designs that epitomize luxury and exclusivity.

Custom Murals and Wallpapers

We possess unparalleled expertise in crafting bespoke murals and wallpapers that transcend the ordinary, elevating spaces to new heights of sophistication.


Our firm is renowned for providing the finest millwork in town, meticulously handcrafted to perfection.

In addition, we offer invaluable guidance to our esteemed clientele in selecting exceptional architects, landscape architects, and general contractors. Our extensive experience and enduring presence in the Miami and New York markets make us a trusted and reliable partner for all your design needs.