MNLA, the landscape architecture firm behind landmark public spaces including Little Island, Waterline Square and the newly completed East River Park, announced the elevation of Alexis Gagné, Dan Yannaccone, Johanna Phelps and Martha Desbiens to the role of principal. This progression marks a significant milestone in MNLA’s ongoing evolution by reflecting the firm’s commitment to cultivating a collaborative, values-driven practice and advancing the next generation of design leadership.
“This elevation represents both continuity and renewal,” said Founding Principal Signe Nielsen. “Each of these talented leaders embodies MNLA’s core principles of transformation, inclusivity, and advocacy. Their elevation reflects years of dedication to our clients, our projects, and our people — and I couldn’t be more confident in their collective ability to guide MNLA into the future.”
Gagné, LLA, ASLA, known for her thoughtful approach to urban landscapes, has led numerous high-profile projects and continues to advance MNLA’s mission to enrich public life in shared spaces through design that balances form, function, and community impact.
Yannaccone, LLA, ASLA, WEDG, has over two decades of expertise in resilient site planning and ecological design, guiding complex landscape concepts to fruition.
Phelps, RLA, ASLA, WEDG, has designed and directed some of the firm’s most notable campus and institutional projects, steering teams toward innovative, contextually grounded solutions across various geographic markets.
Desbiens, LLA, ASLA, SITES AP, WEDG, has been instrumental in expanding MNLA’s academic and healthcare practice, integrating environmental performance and design excellence to support learning, wellness and community connection.
The four new principals join Nielsen, Molly Bourne and Rob DeMarco in leading MNLA’s next chapter.
