
Civil engineering office for structural design, structural analysis reports, BauKG coordination and local site supervision

DI Jürgen Freller ZT GmbH
Klagenfurt am Wörthersee · Graz · ViennaNew on Amplifa
About the engineering office
The civil engineering office DI Jürgen Freller ZT GmbH is a civil engineering firm headquartered in Klagenfurt am Wörthersee with branch offices in Graz and Vienna. Its range of services covers structural design across all project phases – from concept design through permit application and tendering to the execution phase – spanning materials in steel, timber and reinforced concrete construction. Further core services include structural analysis reports, structural dynamics calculations, coordination under the BauKG including the safety and health protection plan, local site supervision and construction management, as well as inspections of existing buildings and bridges. References include building projects such as the FH Klagenfurt, the racking warehouse of MAHLE Filterwerk and OBI St. Marx, bridge structures such as the Wildbrücke Völkermarkt and the Alpe Adria Bridge, as well as the civil engineering works of the Reisseck II pumped-storage power plant for Verbund Hydro Power GmbH. Clients come from power plant construction, building and bridge construction, as well as commercial and residential construction in Austria.
- Site
- Klagenfurt am Wörthersee
- Processes
- Structural design (structural analysis, steel, timber, reinforced concrete construction; concept, Structural analysis reports and structural dynamics calculations (building construction,, BauKG coordination: design and site coordination, safety and health protection plan, Local site supervision (LSA) / local construction management, Inspection of existing buildings and bridges, activity as checking engineer, project management, Bridge construction and civil engineering structural analysis (among others Reisseck II, Structural design (structural analysis), Structural analysis reports
- Materials
- Steel, Timber, Reinforced concrete
- Founded
- 1997
- Industries
- Building construction, Bridge construction, Civil engineering/infrastructure structures, Power plant construction, Commercial properties, Residential construction
- 01
Structural design (concept design, permit application, tendering, execution
- 02
Structural analysis reports and structural dynamics calculations
- 03
BauKG coordination and safety and health protection plan
- 04
Local site supervision / construction management
- 05
Inspection of existing buildings and bridges
Construction methods and materials
Steel
Material of structural design, among other things for hall, bridge and steel building construction.
Timber
Design of timber structures as a material-independent component of the service portfolio.
Reinforced concrete
Structural design in reinforced concrete construction for buildings, infrastructure and power plant structures.
Locations
Klagenfurt am Wörthersee
ATHeadquarters
- Materials
- Steel, timber, reinforced concrete
Graz
ATBranch office (Schönaugasse 4 / Glacisstraße 57)
Vienna
ATBranch office (Rinnböckstraße 25)
Service areas




Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Structural design (structural analysis, steel, timber, reinforced concrete construction; conceptEngineering | – | – | – | – | Steel, Timber, Reinforced concrete |
| Structural analysis reports and structural dynamics calculations (building construction,Engineering | – | – | – | – | – |
| BauKG coordination: design and site coordination, safety and health protection planEngineering | – | – | – | – | – |
| Local site supervision (LSA) / local construction managementEngineering | – | – | – | – | – |
| Inspection of existing buildings and bridges, activity as checking engineer, project managementTesting | – | – | – | – | – |
| Bridge construction and civil engineering structural analysis (among others Reisseck IIEngineering | – | – | – | – | Concrete, Reinforced concrete |
Additional services
Reference customers
History
- 1997
Foundation of the civil engineering office DI Freller in Klagenfurt as a sole proprietorship (January 1997)
- 2006
Conversion into DI Jürgen Freller ZT GmbH (February 2006); opening of the Graz branch office (May 2006)
- 2010
Start of work on the Reisseck II pumped-storage power plant (until 2016, construction volume approx. €385 million, client Verbund Hydro Power GmbH)