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Company

“Most of good things come into life in the course of a conversation and over time. We can say the same about TBS. Because putting it into life as well resulted from an inner and steady impulse. Simply because, it makes sense to combine strengths and dare new things together. Each of us two brings along the best of experiences and the vastest-possible Spirit one can gain in a given field”CEO The black square, Verena Hochrainer-Klune

The black square (TBS) was founded 2018 by Verena Hochrainer-Klune and Harald Hochrainer-Klune. It is a master-builder planning-bureau based in the district Alsergrund in the city of Vienna.
The human in all his aspects and needs definitely stands in the foreground of our business activities. It all revolves around the living space itself, no matter whether public or private.
We can provide the full spectrum of services in one stop when it comes to interior design and architecture.
The focus of our range of services is on people and their needs in their living space, whether private or public. We offer our customers “full service” in the field of interior design & architecture.
Thereby complex design concepts emerge rather from the inside than on the contrary from the outside, which is the usual approach in classical architecture.
Our great passion that connects all the different creative areas, arises from the desire to always create something that is new, innovative, technically sophisticated and last but not least emotional. The essential foundation that brings us the major advantage is to always choose the holistic approach.
Since we are not only creators but carry out projects as well, everything comes out of one hand: strategy, draft, design, planning, execution, submission, cost determination and monitoring. We work for both, private customers and companies in the public segment as well.

 

Interior design & architecture from a single source.

Design planning, permit planning, implementation planning, details planning,  bidding,  supervision,  cost estimate & control, artistical & technical Management

our team

DI Verena Hochrainer-Klune
DI Verena Hochrainer-Klune
Harald Hochrainer-Klune
Harald Hochrainer-Klune
Mag. Monika Ptasnik
Mag. Monika Ptasnik

Assistant to the Management

mpt@theblacksquare.at +43 1 3191294 15
Dipl.Ing.(FH) Thomas Reckzeh
Dipl.Ing.(FH) Thomas Reckzeh
DI Nicole Wurzenberger
DI Nicole Wurzenberger
DI Tijana Ostojic
DI Tijana Ostojic
Celina Sachs BA
Celina Sachs BA
Sara Kosanovic, BSc
Sara Kosanovic, BSc