RDA Landscape Architecture - A Legacy of Design Excellence

Landscapes that feel effortless yet intentional.

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RDA Landscape Architecture

RDA designs landscapes of beauty, purpose, and lasting value - spaces that inspire connection, joy, and a deeper relationship with nature. From community parks to private estates, every project is crafted to serve both people and place. RDA leads with expertise, responsibility, and enthusiasm—for our clients, our communities, and our planet.

 

Founded on Experience
Since 2001, RDA—led by Robert Retnauer, RLA, ASLA—has delivered award-winning, site-specific designs across Long Island, New York, and beyond. With over 35 years of expertise, we bring creative, intelligent, and environmentally responsible solutions to every site.

 

Remarkable by Design
Every site has something worth celebrating. Our job is to discover it—whether bold or understated—and make it shine, on time and on budget. We believe every project is a chance to create a living legacy—spaces that inspire today and endure for generations.”​

 

Rooted in Sustainability
At the intersection of landscape architecture and civil engineering, we integrate stormwater management into nearly every design. Our green “RDA” logo, framed by blue, reflects our guiding elements: plants and water, working in harmony.

 

Our Collaborators
We partner with architects, engineers, municipalities, developers, schools, cultural institutions, and private homeowners. Projects span campuses, residential communities, hospitality venues, libraries, corporate campuses, athletic facilities, streetscapes, and distinctive homes.​​