REFINED & TIMELESS INTERIORS

Founded by Miami-based interior designer Arianna Castro, with over a decade of experience, we create thoughtful, timeless spaces that balance refined aesthetics, functionality, and purpose.

Our approach combines refine aesthetics, functionality, and a highly personalized design process, bringing every detail together with intention while making the experience seamless from concept to completion.

OUR WORK

A selection of recent projects that showcase our design language and approach, uniquely tailored for every client, every home.

  • Modern dining room with beige chairs, a wooden table, and a built-in sideboard near large window with white curtains. Pendant lights hang above the table, and decorative artwork and objects are displayed on the wall and sideboard.
  • Decorative entryway with a black-framed mirror, a cream-colored console table, a brown table lamp, a small stack of books, and a white vase with dried branches, against textured beige wallpaper.
  • Modern living room with beige armchairs, a white sofa, a marble coffee table, wall art, and large windows with curtains.
  • Modern neutral-toned bathroom vanity area with a large mirror, marble countertop, a small vanity mirror, and white textured chair, overlooking a bright room with windows.
  • Modern bathroom with vanity mirror, beige cabinetry, and a glass-enclosed shower with two showerheads and seating.
  • Modern living room with white marble flooring, beige and cream furniture, large windows with curtains, a fireplace, decorative shelves, and a contemporary chandelier hanging from the ceiling.
View More Projects

OUR APPROACH

Modern dining room with a marble accent wall behind a large oval dining table surrounded by white sculptural chairs. A sideboard with a decorative vase and mirror is on the left, and a large window with sheer curtains on the right. Minimalist artwork is displayed on a small shelf near the accent wall.


  • We prioritize your needs, respect your budget, and stay closely connected throughout the process.

    With a clear sense of what works, we guide you to a design that feels uniquely yours and looks stunning.


  • We create spaces that reflect your lifestyle, blending everyday practicality with timeless beauty. We never use cookie cutter designs.

    Our goal is simple: interiors that outlast trends, adapt to your needs, and spark joy every time you walk in.


  • We collaborate with a network of vendors, manufacturers and contractors trusted by Miami’s most exclusive residences.

    Our relationships are built on trust and shared standards of excellence to ensure a consistent, high-quality result.

  • From your intro call to final install, we work with integrity, transparency, and attention to detail, keeping you informed so the process feels clear, aligned, and stress-free.

GET IN TOUCH

Ready to get started? Let us know about your ideas!

EMAIL
info@interiorsbyac.com

PHONE
+1(786) 535 5186

WHATSAPP
Chat with us

BUSINESS HOURS
Monday - Friday 9AM - 6PM

You can also fill our inquire form and we’ll get back to you.

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LET’S GET SOCIAL

Living room design for our new Boca Raton project, part of a full home renovation. Featuring a refined mix of stone wood, and sculptural statement lighting designed to elevate the double-height space. We'll be sharing more of this very special proje
Entry foyer at Alina Residences in Boca Raton. Featuring a elegant design with a neutral palette and sculptural accents that set the tone from the first step in.
A home office that feels calm. Every piece has a purpose, nothing extra 🤍 Another project successfully completed through our Virtual Interior Design Service at the Reach Brickell building. A complete design concept ready for the client to bring to
Entry foyer & family room designed to make a statement as you step into this home at Reserve at Davie. Bold accents, a neutral base, and Taj Mahal stone tying it all together. Swipe for the before ➡️

TESTIMONIALS

  • “Arianna is seriously the best! She is so great to work with and her designs are perfection. Loved working with her, and can't wait to collaborate with her again soon”

    Jenna
    Read it in our Google Profile

  • “Interiors by AC was incredibly easy to work with and did a fantastic job designing our home. The process was smooth from start to finish, and the results truly speak for themselves. I’m already looking forward to working with them soon!”

    Daniela
    Doral, FL
    Read it in our Google profile

  • “Loved working with Interiors by AC. The renovation was very smooth and clear from start to finish. Arianna has a great eye and made it feel easy.

    Highly recommended if you're looking for something special in your house.”

    Gerardo
    Boca Raton, FL
    Read it in our Houzz Profile

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