Excellence in Development.
Precision in Execution.
PRIVATE SIGNATURE REAL ESTATE acts as a trusted partner, developer, and consultant for sophisticated residential projects - from exclusive new builds to the refined transformation of existing properties, including villas, boutique developments, and penthouses. We combine architectural ambition with economic clarity and a structured, disciplined approach to execution.
With extensive experience in high-end real estate development, as well as deep expertise in controlling, finance, and management, we ensure that every project is guided with precision and foresight. Our work is defined by entrepreneurial thinking, accuracy, reliability, strong negotiation capabilities, and an established network across all relevant disciplines.
The Art of Bringing Vision to Life.
PRIVATE SIGNATURE REAL ESTATE transforms high-end residential aspirations into distinctive, individually crafted properties - whether through bespoke new developments or the refined revitalization of existing residences. In close collaboration with leading architects and specialists, we create carefully considered concepts and deliver a cohesive architectural vision defined by a clear and consistent signature.
Economic clarity, reliability in delivery, and uncompromising quality assurance are at the core of everything we do. We manage and coordinate all project stakeholders, ensuring a structured and efficient execution at the highest level.
The result is architecture realized to perfection- defined by excellence in both design and craftsmanship. We create enduring value: unique residences that meet the highest expectations and consistently exceed them.
Commitment Without Compromise
PRIVATE SIGNATURE REAL ESTATE is a family-owned company based in Vienna, Austria. Founded by Alexander Török and Sonja Bartsch, the company brings together extensive experience in the real estate and construction sector with deep expertise in project development, controlling, and management.
The combination of technical, entrepreneurial, and financial competence forms the foundation for a structured and disciplined approach - applied with equal precision to both new developments and the transformation of existing properties.
Alexander Török
Real Estate Developer | Trustee | Licensed Developer
Alexander Török brings extensive experience in high-end residential development, including the realization of complex new-build and refurbishment projects.
As a licensed developer, he assumes full entrepreneurial responsibility for the conception and execution of new developments, penthouse extensions, and sophisticated renovations.
His deep understanding of the market, strong technical expertise, and long-established network form the foundation for projects defined by both architectural quality and economic stability.
Educated in Real Estate at the Vienna University of Technology and shaped by many years of experience in the Austrian property market, he combines solid expertise with a carefully cultivated network that contributes decisively to the success of each project.
Mag. Sonja Bartsch
Finance | Strategy | Project Management
Sonja Bartsch brings extensive expertise in auditing, finance, project management, and consulting to the company.
Building on her academic background in business administration, she is responsible for the financial structuring and strategic direction of the company, as well as the economic management of all projects.
Her strength lies in financial planning, budget control, and the clear definition of efficient processes - ensuring transparency, operational clarity, and long-term value across all development and transformation projects.
Complementary Strengths. Shared Standards.
The two partners bring together complementary expertise, forming the foundation for structured and economically sound real estate projects.
Their shared passion for architecture, precision, and craftsmanship defines a consistent standard of quality - across both new developments and the transformation of existing properties.
Setting the Standard in Luxury Development
PRIVATE SIGNATURE REAL ESTATE is defined by an uncompromising dedication to quality, precision, and excellence at the highest level. We offer maximum flexibility in both the vision and realization of each residence - paired with a highly professional and structured approach to execution. Our work is built on years of experience and an established network, shaped through the development and transformation of high-end boutique projects.
Uncompromising quality is a fundamental principle. Thoughtfully designed layouts refined spatial concepts, and carefully curated materials define our projects, alongside exceptional craftsmanship and meticulous attention to detail.
PRIVATE SIGNATURE REAL ESTATE stands for visionary planning in collaboration with renowned architects, supported by a network of international and Austrian craftsmen, planners, and construction partners. Efficient cost and project control, combined with rigorous on-site quality management, ensure precise execution at every stage. The result is a residence of lasting distinction - individually crafted, architecturally coherent, and executed to the highest standard. Our commitment extends beyond completion. We remain a trusted partner, ensuring continuity, reliability, and long-term satisfaction.
Transparency Builds Trust.
Clear structures, well-founded decisions, and transparent cost management are integral to our project philosophy.
Depending on the scope, we act as developer, project partner, or consultant - each role defined by clarity, structure, and economic precision.
For us, transparency is not an added value, but the foundation of every successful collaboration.