How Does Stoneweg’s OpRE Track Record Power Its €2B Office Buy?

Jul 16, 2025

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Featuring CoFounder & CIO, Joaquin Castellvi Lopez, on scaling OpRE strategies across Europe’s office markets

This episode is made possible by ReturnSuite:”Complex Cash Flow Modeling Simplified.”

What happens when you apply a logistics-and-hospitality operating playbook to offices?

In this episode, Joaquin Castellvi Lopez, CoFounder & CIO of Stoneweg, Brave Corp CEO Caleb Parker and ReturnSuite Cofounder, Sam Gamble, live from MIPIM in Cannes to unpack Stoneweg’s headline-making takeover of Cromwell’s €3.9 B European platform and how an OpRE framework drives a £2B office portfolio buy.

Read the deal announcement before you press play.

Key Topics

* Platform Acceleration: How Stoneweg absorbed Cromwell’s €3.9 billion European platform to reach ~€8 billion AUM overnight

* Office as Experience: Stoneweg believes offices should live in “urban mixed-use, highly amenitized districts,” where workspace is “integrated into a full experience,” not treated as an island

* Hospitality-Infused Offices: Leveraging hospitality and flex-living expertise—partnering with best-in-class operators and internal teams—to layer amenity-driven service bundles onto traditional leases

* Leasing Flexibility: They’re layering mid-term leases, short-term flex and hospitality-inspired services on top of long-term covenants to create a hybrid income profile

* District-Level Strategy: Their underwrite starts at the micro-market or district level, ensuring each asset fits into a broader ecosystem of retail, residential and leisure

* Mixed-Use Districts: Focusing on how each office integrates into a 15–25 acre urban community—retail, residential and leisure synergies that attract the right customers

* Asset Prioritization Roadmap: Zeroing in over the next 18 months on which properties need “smart capex” today, before scouting new acquisitions

* Smart CapEx Discipline: Instead of “fancy lobbies or underutilized art pieces,” capex is focused on targeted amenities—wellness rooms, collaborative spaces, food & beverage activations and community programming—with a disciplined ROI lens

* Long-Term Outperformance Thesis: Stoneweg’s conviction that OpRE-driven, district-scale offices will outperform European markets over time

Who Should Listen

Landlords, institutional investors, operators, brokers and PropTech founders seeking to:

* Underwrite offices with both base-rent and service-stream revenue models

* Reposition assets using a proven OpRE playbook

* Leverage mixed-use masterplans for higher yield, footfall and customer stickiness