Our work is to listen, interpret, and transform the way you inhabit your world.

Explore
01

Spaces that feel
free, honest, inevitable

Nathaliacosta A⁴

Nathaliacosta Design Studio is a full-service design firm dedicated to shaping exceptional residential and commercial environments. Working from new construction through the final design details, the studio provides a comprehensive approach that integrates space planning, interior architecture, material selection, custom millwork, furnishings, lighting, and styling.

Driven by a commitment to timeless design and thoughtful execution, the studio creates spaces that feel sophisticated, purposeful, and deeply connected to the people who inhabit them. With projects across the United States and different countries, every design is guided by the belief that true luxury lies in intention, quality, and authenticity.

7+
Years of Practice
80+
Projects Delivered
4
Core Services
A
Design Principles
02

What we do

Interior Design & Remodeling

We transform existing spaces through thoughtful design, functional planning, and carefully curated finishes. From single-room renovations to full-home remodels, we create environments that reflect each client's lifestyle while elevating comfort, beauty, and value.

New Construction

From concept to completion, we collaborate with architects, builders, and consultants to design homes with intention from the ground up. We guide every design decision to ensure a cohesive, timeless, and highly personalized result.

Project Management

We oversee every phase of the project, coordinating contractors, vendors, schedules, and installations to ensure a seamless process. Our goal is to provide clarity, efficiency, and peace of mind while bringing each vision to life.

Furniture Design

We design custom furniture and millwork tailored to the unique needs of each project. Every piece is thoughtfully developed to complement the architecture, maximize functionality, and create a truly one-of-a-kind space.

03

Selected projects

Coming Soon
Residential
20.01
Residential
20.02
A calm city refuge where warm materials soften an architectural shell.
Commercial · Wellness
20.03
A wellness center designed around ritual, texture and quiet vanguard character.
Dubai
Residential
20.04
Four principles — sensitivity, elegance, comfort, functionality — built into a home.
Weston, FL
04

The studio

Nathalia Acosta
Nathalia Acosta
Founder · Principal Designer

Nathalia Acosta is the Founder and Principal Designer of Nathaliacosta Design Studio. With over seven years of experience in residential and commercial design, and formal design education in Miami, Florida, she has curated projects across the United States and Colombia.

Her work is defined by timeless elegance, thoughtful functionality, and a belief that every space should be an honest reflection of its owner. Through a highly personalized approach, Nathalia creates interiors that feel refined, intentional, and uniquely their own.

Negar Mohammadnezhad
Negar Mohammadnezhad
Architectural Designer

Architect with a Master's degree and over six years of experience across residential, commercial and hospitality projects. Negar blends creative vision with technical precision — guiding each design from concept to delivery with a sharp eye for quality, detail and constructability.

Design with intention

From the foundation to the final detail, we create spaces with purpose, beauty, and lasting value.

Start a Project

Let's talk

Tell us a little about you and your space. We'll get back to you personally to start the conversation.

Studio By appointment

Message