Building Better Communities—One Project at a Time

We believe development can be both visionary and grounded—pushing boundaries while staying rooted in community, sustainability, and integrity. Founded by Maine natives Chris Marshall and Nate Green, GreenMars brings together decades of experience in architecture, real estate development, and environmental design to reimagine what housing can look like across New England.

We specialize in thoughtfully planned residential communities and adaptive reuse projects that address real housing needs—whether that’s affordable workforce condos, green urban infill, or creative conversions of underutilized spaces. With every project, our goal is the same: create beautiful, lasting spaces that serve the community and respect the environment.

Made possible with GreenMars Real Estate & Acadia Realty Partners.