Expert Witness
Oliver Bertram
Expert witness for interior design and architecture,
Court-sworn expert witness for field 73.01 – Interior Design
Member of the Association of Court Experts

Expert witness for interior design and architecture, Court-sworn expert witness for field 73.01 – Interior Design
Member of the Association of Court Experts

Experience and Precision
Since 2008, I have been a leading specialist in designing, converting, and refurbishing office spaces—successfully managing projects of all sizes, both nationally and internationally.
My range of services includes expert reports in both private and judicial contexts, due diligence reviews, securing of evidence, determination of causes of damage, support in construction projects, and assistance in remedying defects and damages.
As an expert witness, I deliver objective, neutral, and technically robust assessments and precise evaluations of complex situations. Especially in cases of disagreements or disputes between contracting parties, independent, professionally competent advice and reliable reporting are crucial.
In complex cases in the private sector, I adopt a pragmatic, results-oriented approach.. Standard solutions are often no longer applicable – yet a viable solution must still be found. This is where I focus my efforts to achieve the best possible outcome under the given conditions.
Since 2021, I have been Managing Partner of teamgnesda, an interdisciplinary company for architecture and business consulting. Our expertise goes beyond traditional office fit-outs and also covers projects in the hospitality and residential sectors.
Areas of Expertise
Expert reports in the field of interior architecture
- Preparation of reports on conversion and refurbishment issues
- Documentation of damages
- Determination of causes of damage
- Securing and recording of evidence
- Identification of functional defects
- Detection of planning deficiencies
Additional services
- Due diligence reviews of real estate
- Cost estimates and expenditure assessments
- Support with damage remediation
- Assistance with substitute performance
- Before-and-after documentation

“Nowhere are the aspects of construction as closely interconnected as in interior fit-outs. This is where the true value of a property emerges: function and use are manifested in space. Only flawless functionality enables the full realization of a property’s potential.”

Education, Qualifications and Training
- 2002Graduated in Architecture
- 2002–2012Assistant Professor at the Greg Lynn Chair, University of Applied Arts Vienna
- 2009–2012Senior Scientist at Scionic, University of Art and Design Linz
- 2010–2020Managing Director, Wideshot ZT GmbH
- Since 2021Managing Director, teamgnesda – interdisciplinary company for architecture and business consulting
- Since 2018Preparation of private expert reports
- Since 2025Court-sworn expert witness
- Since 2025Member of Standards Committee 011 – Building Construction at Austrian Standards
Certifications & Additional Training
Fire protection in construction, court expert reports, circular building (all ArchIng Academy)
Clients
A selection of companies I have worked with in recent years (including both projects and expert reports).
- Agrana
- APG
- Asfinag
- Atos
- Audi
- Austro Control
- Bank Austria
- Bitpanda
- BMW AG
- Deutsche Bank
- ERGO Insurance
- Freshfields Bruckhaus Deringer
- Kapsch Carrier Com
- Microsoft
- Mondi
- OMV
- Pitkowitz & Partners
- Price Waterhouse Coopers
- Raiffeisen Landesbank Carinthia
- Robert Bosch AG
- Sparkasse Kitzbühel
- Sport1
- Universal Records
- Win2Day
- Xing Kununu