About Perianth

Perianth Interior Design is a national award-winning design firm that creates unique, individualized and refined interiors serving high-achieving professionals and accomplished women in New York City, New Jersey, Eastern Pennsylvania and beyond. With nearly 30 years of experience and roots in Manhattan, we bring a sophisticated perspective and deep understanding of functional, luxurious design.

Our studio specializes in furnishings and renovations to transform living spaces. We work closely with our clients to define their vision and make it a reality through trusted partnerships with our contractors, architects, and artisans. Each design is tailored to reflect our clients’ unique lifestyles, with care, creativity, and precision.

Our work has been featured on Good Day New York and in publications such as Elle Decor, The New York Times, The New York Post, and others.

Perianth is thrilled to be named Designer of the Year 2025 for Living Spaces over $100,000 by the Interior Design Society.

Your home is not simply a reflection of your taste.

It directly inspires your energy, creativity and productivity.

About Hilary

At the helm of Perianth is Principal Designer Hilary Unger, NCIDQ-certified. Hilary specializes in creating unique, livable, and luxurious spaces — always with a sophisticated touch.

She values an interactive relationship with her clients, where they feel comfortable sharing their desires and ideas, and she translates them into thoughtful, distinguished design. This collaborative approach enables Hilary and her team to create spaces that fully meet — and often exceed — expectations.

Her portfolio spans imaginative playrooms, elegant family homes, cleverly designed apartments, and select light commercial spaces. Today, Hilary focuses primarily on full-home interior transformations and renovations, blending warmth, functionality, and a refined aesthetic.

What our Clients Are Saying

Our clients’ words reflect the care, collaboration, and creativity we bring to every project

  • "I had a truly wonderful experience using Perianth's Hilary Unger as my designer. Hilary was EXTREMELY easy and she accomodated herself to my very busy schedule. I can't recommend her enough."

    Pamela

  • "...Lew Loves the apartment! He LOVES the furniture and can't decide if her prefers this seat or the reclining leather chair. He said this apartment is a perfect blend of his own familiar belongings with my new. We did it!"

    Sue

  • "We had a terrific experience with Perianth! I was very hesitant to hire a decorator; I've done it before and found it unsatisfying, expensive and not effective at figuring out how to make my place look like "me". This was the complete opposite of that experience! All in all, a fabulous experience and my apartment looks great, coordinated and beautiful, but not "precious" or false. If I move, I suspect she will be my first call."

    Rebecca

  • "Hilary Unger really listens to you. She doesn't have a set look like some designers, but finds out what a client's life looks like and provides a perfect space as a backdrop."

    Elana

Where vision meets possibility. Every room tells your unique story.

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