BT
Başar Tosun
Founder
Est. 2019
Transforming Space into Experience
DEEX.in is a multidisciplinary design and build studio founded in Istanbul in 2019, providing services in architecture, interior design, and design.
Traditional agencies perfected the art of the pitch. We perfected the art of the work. No endless meetings, no inflated presentations, no layers of people between your vision and the final design.
We approach every project by exploring diverse possibilities of form and function, placing lived experience at the core. Our design language is shaped by the body and mind, not by trends, reinterpreting culture and traditions.
Architecture
Harnessing light, materials, sound, and orientation toward views to create emotive architecture that belongs to its place.
Interior Design
Creating authentic and timeless interiors that become the stage for daily life. We layer details, textures, and materials to create functional and haptic spaces.
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Team
Process
How We Work
01
Listen
We begin by understanding — your vision, the site, the context. Every project starts with deep listening.
02
Explore
We explore multiple ideas of form and function, pushing boundaries while keeping lived experience central.
03
Refine
Through iteration and dialogue, we distill ideas into precise, intentional design solutions.
04
Realize
We see projects through to completion — from concept to construction, every detail matters.
“We don't follow trends. We create spaces that outlast them.”
Başar Tosun
The Principles That Guide Us
Authenticity
Every project is unique. We design from the spirit of the space and the needs of the user, never from templates.
Functionality
We believe everything that looks beautiful must also work perfectly. Form and function are inseparable.
Timelessness
Beyond trends, we create spaces that will be felt with the same power years from now. Lasting design outlives fleeting trends.
Get in Touch
Let's Bring Your Project to Life
Planning a new project? Let's realize your vision together.