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Helen Koss Interiors




Unwaveringly trusted. Uncommonly creative. Unabashedly fun.

Helen Koss Interiors is award-winning Sofia based interior design studio known for its professionalism, aesthetic and inspiring approach to capturing the heart and soul of every project

Founded in 2009 in Tel Aviv by Helen Koss, in 2013 the studio moved to Sofia and since then, the interior architecture and design firm have built a vast portfolio of office ,residential and commercial space .

Our team includes a mix of designers and creative talent who are firmly committed to the success of every project. And we like to have fun along the way.


Helen Koss interiors delivers award-winning designs in the commercial, hospitality, residential and multi-family spaces, drawing inspiration from sources as diverse as fashion, nature, film, art and global culture.

“First and foremost, Helen Koss interiors is known for pushing the envelope with our interior design projects. Our clients are always involved in the process even if sometimes it seems overwhelming for them, when the dust of the project settles, they are still keeping us in the loop for every interior decision, that’s when we know we’ve done our job.”–Helen

We believe that every project has a unique soul, just as distinctive as each client, and it’s our job to evoke that personality through space planning, material selection, furniture & décor. Interior design sets the stage for our clients goals.

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