Tegetthoffstraße 7 – 1010 Wien
Our real estate experts provide you with comprehensive advice on all your wants and needs in terms of real estate, properties, and apartment buildings. You can get in touch with us by phone, email, or via our contact form.
More than 40 experts are available to answer your questions about acquisition, brokerage, and construction management
The management board of 3SI is committed to fair and trustworthy service
Office management & reception
We are always there for you with passion and friendliness
Would you like to sell a property? Our real estate experts can provide you with comprehensive advice
Are you planning on selling a property?
There are plenty of good reasons for selling a property. We will guide you through the processAcquistion
Are you looking for a property? The 3SI real estate agents can help you with all your needs
We will guide you on the way to the property of your dreams
Gerhard KleinProperty search
Asset & rental management
Do you have any questions about our properties? We look forward to hearing from you
We build exceptional properties for you as part of trendsetting projects
We create unique, individual living spaces for future residents
Learn more about our construction managementOur services
Where innovation meets current trends! 3SI Marketing communicates our success
Bookkeeping & accounting
The basis of a sound real estate company: our financial and accounting experts
We make sure that your visit to Vienna is unforgettable
We work with precision and passion
Gain an insight into our day-to-day work
We look forward to hearing from you!