About us
3stone is a boutique real estate advisory firm providing independent advice and hands-on execution for strategic transactions, ranging from single assets and portfolios to large-scale developments. Our five partners combine international, institutional experience with the focus and agility of a boutique team.
What sets us apart
A compact, senior team that works across sectors and operates with an entrepreneurial mindset — delivering real estate solutions that go beyond the transaction itself.
Institutional Boutique
A small, seasoned team working fully hands-on. Personal attention, direct communication, and excellence at every stage of the process.
Multi-Sector Perspective
We operate across all real estate sectors and always look beyond traditional boundaries. By combining perspectives, we uncover opportunities that others overlook.
Entrepreneurial Approach
We think and act as entrepreneurs — creative in structuring, pragmatic in execution, with a focus on sustainable value creation and careful risk management.
Best-in-Class
Real Estate Solutions
3stone consists of five partners, each with a unique background, network, and perspective. Together, we bring complementary expertise across all major sectors — from residential and logistics to offices, retail, hotels, and mixed-use developments. We advise and execute across a wide range of structures, from asset and share deals to joint ventures, earn-outs, and other tailor-made solutions.
This diversity makes us unique. Our combined perspectives create a broad frame of reference, allowing us to approach complex challenges from multiple angles and connect the dots others may miss.
Over the years, we have built an exceptional track record — from landmark transactions to advising a wide range of clients, including top-tier international private equity firms, Dutch family offices, developers, and entrepreneurs.
The long-term trust of our clients, combined with our collective expertise and experience, forms the foundation of 3stone.
Our core values
Focused
We only take on projects where our expertise truly makes a difference. No standard processes — always tailored solutions with a clear focus on delivering the best possible outcome.
Engaged
We stand side by side with our clients. Every transaction is personally managed by a partner from start to finish, with full accountability for both process and results.
Strategic
Our experience with landmark transactions and strong networks form the foundation of our advice. We approach every transaction with insight and oversight, balancing interests, context, and risks — always striving for the optimal real estate solution, today and for the long term.
What our clients say
"We experience 3stone as a focused partner who communicates clearly and directly.
The partners are closely involved and work hands-on to deliver successful outcomes."
Edwin Kolkhuis TankeDirector Klok Groep / Novaform / Adriaan van Erk Groep
"From day one, Renaldo’s sharp and results-driven approach was evident. He quickly identified the core issues and provided us with the tools to strengthen our business case. As a result, we entered the negotiation with a stronger position and significantly increased our chances of success."
Niels NieboerDevelopment manager Dura Vermeer
"Our lease at Apollo House in Amsterdam was coming to an end. Throughout the renegotiation process, 3stone guided us in a transparent and highly professional manner. Their thorough approach and clear communication enabled us to remain in our preferred location. We look back on a constructive collaboration in which our interests were genuinely well represented."
Paul HuismanHead of Business Services A&O Shearman Amsterdam
Commercial Leasing with Flexas
Through our strategic partnership with Flexas, all leasing activities are managed under the Flexas Group umbrella. Together, we offer tenants and landlords a powerful proposition, combining data, technology, and personal service for a future-proof approach to the Dutch office market.
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Optimizing Development Plans with OMRT
OMRT and 3stone combine advanced parametric AI-driven design with market knowledge and transaction expertise. This integrated approach accelerates decision-making, shortens development timelines, and increases the likelihood of successful execution — from urban redevelopments to large-scale masterplans.