About us
Yasin Karaca has extensive experience in the German real estate market – from real estate financing and transactions to the building and development of real estate portfolios. His own experience as a real estate investor complements this perspective and today forms the basis for the commercial and strategic management of properties and real estate portfolios at SIINUS CAPITAL.
From property valuation through the structuring and review of financing to the support of real estate transactions – this experience enables a holistic assessment of the substance, income, risk and long-term marketability of a property.
Experience from a large number of completed real estate transactions now feeds into the management of existing portfolios and the assessment of new investment opportunities – from acquisition through ongoing portfolio and asset development to exit.
Drawing on his many years of work in the real estate market, Yasin Karaca has extensive experience in the economic assessment of properties: substance, location and tenant structure as well as earning power, modernization status, capital expenditure requirements and tenant creditworthiness.
His experience in real estate financing complements this view with the banks' perspective: the criteria by which lenders value properties, the factors that determine financeability, and how property quality, cash flow, capital expenditure requirements and remaining useful life affect the long-term development of a property.
This perspective shapes how properties are assessed and managed throughout the entire holding period. Asset-level measures are not considered in isolation, but evaluated in terms of their impact on income, risk, value performance, financeability and exit readiness.
Yasin Karaca is a graduate of Cologne Business School (today CBS University of Applied Sciences) with a degree in General Management. This business foundation meets more than a decade of practice in the German real estate market – complemented by his work supporting private investors in building and developing real estate portfolios in the low nine figures, as well as his own experience as a real estate investor.
This combination of education, real estate and financing experience, and transaction practice forms the analytical and structural foundation of SIINUS CAPITAL's work. It shapes both the economic and strategic management of existing property portfolios and the assessment of new investment opportunities and their placement within the overall portfolio strategy.
"I think in portfolios, not individual transactions — every decision is subordinate to the bigger picture."
Yasin Karaca
In the view of SIINUS CAPITAL, professional real estate management requires more than the mere administration of existing holdings or the support of individual transactions. Properties must be managed economically and strategically, continuously developed, and viewed in the context of the overall portfolio.
This gives rise to the aim of combining Asset Management with Portfolio and Investment Management and supporting investors across the entire investment cycle – from managing existing properties through the assessment and integration of new investments to the preparation and execution of an economically sensible exit.
At the core is a clear owner's perspective: decisions are guided by the objectives and investment strategy of the respective mandate as well as the long-term economic development of the real estate portfolio.
The Rheinauhafen in Cologne is the operational base of SIINUS CAPITAL. From here, we support private and institutional investors in the management and further development of their real estate portfolios – nationwide.
SIINUS CAPITAL assumes central economic and strategic management of the mandate. For specialized tasks, qualified external partners are engaged and the relevant interfaces are coordinated from the owner's perspective. The service providers deployed are selected and managed according to the requirements of the respective mandate. Management, decision-making foundations and reporting remain centrally with SIINUS CAPITAL, while specialized expertise is brought in where needed.
Property Management – commercial and technical property administration, operating costs, receivables management and operational tenant support
Leasing – local and national leasing agents for new lettings and space marketing
Technical Management – maintenance, servicing and technical measures through engineers, surveyors and specialist contractors
Construction & Modernization Management – planning and execution of larger capex, modernization and conversion measures through planners, architects, project managers and contractors
Valuation & Due Diligence – technical reviews, expert reports and, where required, external property valuations through surveyors
Legal & Notarial – legal and notarial support through law firms and notaries
Tax – tax matters and structuring through independent tax advisory firms
Financing – coordination of financing-related matters with the client's banks and financing partners
Sourcing & Transactions – involvement of brokers, owner contacts and other market participants in acquisition and sales processes
We look forward to speaking with investors who value professional, long-term management of their real estate portfolios or wish to expand their portfolio in a targeted way.
