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I am driven by a deep desire to create spaces that touch people the moment they step inside — spaces that spark a sense of joy, lightness, and belonging. Places where even the simplest everyday moments feel special, where a quiet sense of comfort and calm can unfold naturally.
After decades of working as a designer I felt a growing need to move beyond products and shape entire atmospheres. Starting in the late 90´s with children rooms, I founded add it interior architecture as a way to bring this vision to life — to design spaces that are not only seen, but truly felt.
Esther Weise
Dipl. Ing. TT Design
CEO & Creative Director



THE TEAM
Our team of dedicated designers, interior architects, and architects approaches each project with curiosity and care, embracing both creative and technical complexity. Through an ever-evolving methodology, we develop thoughtful, tailored solutions that respond to each challenge with precision, clarity, and a deep understanding of design and implementation.

Kathrin Melzer
Dipl. Kfm.
Controlling & Project Management

Sabine Prinke-Stoll
Dipl.-Ing. Interior Architecture
Dipl.-Ing. Architecture
Design & Technical Planning

Katharina Mertens
B.A. Interior Architecture
Design & Visual Communication

Karolin Anders
M. Eng. Interior Architecture
Design & Technical Planning
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