France’s TerraStab wins ULI’s Proptech Innovation Challenge
TerraStab, a French facilities services company specialising in non-invasive hydro-stabilisation solutions to prevent structural issues arising in building foundations from moisture in clay soil, has been declared the winner of the ULI’s fourth annual PropTech Innovation Challenge.
TerraStab was announced as the winner during the recent ULI Europe C Change Summit in Dublin following voting from the expert jury.
TerraStab, which was founded in 2025, focuses on solutions to address a critical resilience issue: preventing damage caused by the shrinking and swelling of clay soils. Its Shield technology combines connected soil sensors with targeted hydro-stabilisation to stabilise moisture around foundations, addressing the root cause of ground movement without structural works. Focused on residential properties, the solution is designed for scalable deployment across individual buildings, property portfolios and territories, transforming a costly, reactive problem into a manageable real estate risk in both prevention and remediation.
The PIC jury were unanimously in agreement concerning this impressive, practical solution to a growing problem: an accessible and affordable solution addressing a critical resilience challenge to prevent damage caused by the shrinking and swelling of clay soils and ultimately protect homes against ground movement.
“Winning the ULI Europe PropTech Innovation Challenge is an extraordinary honour”, said Philippe Isselin, President, TerraStab. “It validates our belief that climate resilience can be made accessible to millions, and inspires us to pursue our ambition: changing the way the world protects its buildings.”
PIC is a ULI Europe Young Leaders led initiative with a focus on fostering innovation in real estate, reflecting the mission of ULI to shape the future of the built environment for transformative impact in communities worldwide. This year’s competition called for workable, scalable, and competitive solutions, including both high and low-tech solutions from across the built environment and technology, that address the environmental, economic and social resilience of real estate.
Following in-country competitions held over the summer, the European Grand Final brought together six diverse in-country winners including Soul of Concrete (Germany), Alfred Smart (Spain), MOD (Switzerland), Built Datum (UK & Ireland), SENSE Smart Roofs (Poland), and TerraStab (France) to pitch their solutions to the PIC jury.
Germany’s Soul of Concrete received a special mention as a future shaper with potentially innovative ideas for a resilient built environment. It replaces manual, corroding steel reinforcement in concrete with an automatically produced, modular 3D fibre reinforcement system which eliminates corrosion, and reduces both costs and emissions.
“Huge congratulations go to TerraStab for winning this year’s grand final and to all the PIC 2026 country finalists”, said Simon Durkin, CEO, ULI Europe and Jury Member. “Thanks also to our enthusiastic Young Leaders and to our PIC champions for their momentum in driving this important pan European initiative, which helps to connect real estate with the solutions it needs to tackle many of the biggest environmental and social challenges.”
