About
Primus
Primus is an owner-managed company with a clear stance. We make independent decisions, take responsibility for our developments, and think beyond the construction phase.
For us, quality is defined by precision – in planning, in execution, and in collaboration. As an integrated platform, we unite development, architecture, investment, and financing under one roof. Short decision-making paths and more than 30 years of experience enable us to advance projects in a structured and decisive manner – even in demanding market environments.
bn
€ Gross Development Value (GDV)
+
Years of proven market experience
Projects in active development
Employees
Residential units in the pipeline
Quality as a guiding principle
For us, quality is never accidental. It begins with the question of what contribution a project should make to the city – and continues through every planning and investment decision.
Sustainability is not a buzzword, but our benchmark. We carefully evaluate locations, critically assess concepts, consciously invest in durable solutions, and think beyond the construction phase when developing urban quarters. Our ambition is to realize projects that stand out architecturally and remain economically viable – not only today, but tomorrow as well.
Management

Sebastian Fischer
Chief Executive Officer & Shareholder
Sebastian Fischer is CEO and shareholder of Primus Immobilien AG and has been part of the company since 2017. He brings extensive experience across various segments of the real estate industry.
He gained this experience, among others, at JLL – initially in the investment division and later as Executive Assistant to the CEO EMEA Corporate Finance in Frankfurt and London – as well as at Engel & Völkers.
At Engel & Völkers, he served as partner and managing director, where he was responsible for establishing the sales platform for development projects in Berlin. In this role, he also met the former founders and owners of Primus Immobilien AG. Sebastian Fischer holds an MBA from ESCP Europe in Paris.

David Neuhoff
Chief Financial Officer & Shareholder
David Neuhoff is CFO, shareholder, and has been with Primus since 2023. He brings many years of experience as a real estate investor and transaction lawyer in the fields of real estate, corporate law, and M&A. He founded and led LINUS, an investment platform specializing in private real estate debt.
Prior to that, he worked for several years at the international law firm BCLP, formerly Berwin Leighton Paisner. He studied law at the University of Bonn (Rheinische Friedrich-Wilhelms-Universität Bonn) and is a fully qualified lawyer (Volljurist).
Heads
Julia
Küster-Claus
Head of Accounting
Christian
Mühlens
Head of Development
Malte
Borau
Head of Architecture
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Faye
Veugelers
Director of Sales and Letting
Ayse
Altinel
HR Manager
Supervisory Board

Christopher Muhr
Christopher Muhr serves as Chairman of the Supervisory Board of Primus Immobilien AG. As a serial entrepreneur and business angel, he contributes extensive experience in the strategic development of companies. His focus lies on investments and the support of growth phases across various business models. Previously, he served as COO at Auto1 and is a co-founder of Citydeal.

Keith Fischer
Keith Fischer serves as Vice Chairman of the Supervisory Board of Primus Immobilien AG and is a Partner and Senior Managing Director at Kildare Partners. With a background in business administration and extensive experience in the real estate and financial sectors, he has held a range of senior and specialist roles since the late 1980s. His career includes positions at Hines, Orion Capital Managers, Lehman Brothers, Frankonia Eurobau, and Varde Partners.

Mathias Hellriegel
Prof. Dr. Mathias Hellriegel is a member of the Supervisory Board of Primus Immobilien AG. He is an attorney-at-law specializing in administrative law and the founder of Hellriegel Rechtsanwälte. As a recognized expert in the real estate sector, he holds several academic and professional roles, including serving on the board of the Society for Real Estate Research and lecturing at the IRE|BS Real Estate Academy at the University of Regensburg.