JDDA has a clear vision – to create beautiful and innovative landscapes that deliver world class designs whilst enriching the lives of the people who use these outdoor spaces.
We are as inspired by the future as we have been by the past. As we move forward, we strive to create beautiful and sustainable solutions which blend a unique sense of place with a thorough knowledge of the principles and practices of landscape architecture today.
We are always inspired by the land we work on, care about how our clients want to live, and what really matters to them. We believe that full collaboration with our clients and all affiliated professionals is fundamental to the success of our projects.
We are passionate about design and we are known for our consistent, innovative and sustainable designs and our unwavering attention to detail in crafting. We are innovators with a sensitivity to our changing world.
Our work reflects the intersection of nature and art; the juxtaposition of the designed and the natural; with bold, contemporary, dynamic gestures in the form of structural plant material, innovative hardscaping and an infusion of landscape art.
We care about the world we live in and our landscapes have the power to become our sanctuaries, to be uplifting, relaxing and thought provoking, with an appreciation for nature.

James Doyle is the founding Principal of James Doyle Design Associates. The firm was founded in 1993 and he has developed an award-winning design business with residential projects in the United States and Europe. Prior to 1993, Mr. Doyle was head horticulturist of a Russell Page garden in Ireland and has combined his horticultural experience and strong design philosophy to bring to life unique and innovative landscapes.

Projects have ranged from small urban courtyards to large country estates and the firm was named the 2010 APLD International Designer of the Year. Traveling and visiting gardens worldwide has greatly influenced his work and allowed him to develop both contemporary and traditional designs.

He has guided the firm to a growing collection of awards including Palladio and Stanford White Awards, an ASLA Honor Award and an APLD Gold Award. In 2012, Mr. Doyle was elected into the New England Design Hall of Fame for his contributions to landscape design in the New England region. In 2018, he was the recipient of the ICAA’s 2018 Arthur Ross Award in Landscape Design which celebrates a career of excellence in the classical tradition. He has lectured to private groups and conferences both nationally and internationally and has co-authored the firm’s monograph, ‘The Landscape Designs of Doyle Herman Design Associates’.

Matthew Willinger holds Bachelor of Arts degrees from New York University in both History of Art and Literature and is proud to have a career that unites his passion for art and design with his love of horticulture. He has earned certifications from the New York Botanical Garden Continuing Education Program in Landscape Design, Commercial Horticulture Plant Identification, and Flower Garden Design. In addition, he has lectured with various garden clubs and greatly enjoys participating in community events, that improve landscape situations.

Matthew has been a volunteer with EarthPledge, a non-profit New York City organization that promotes ‘Green’ Architecture and environmentally correct practices, and also as a gardener for City Hall Park in New York City. Matthew has been a member of the James Doyle Design Associates team since April, 2006.

Heather Harris is a Landscape Architect at JDDA. She graduated from Cornell University in May 2012, earning a Bachelor of Science degree, with honors, in Landscape Architecture.

A New England native, she grew up working in the greenhouses of her family’s nursery business in rural Connecticut. Her background in plant production, plant maintenance, disease assessment, and garden design, led to her interest in landscape architecture. At Cornell, her studies focused on exploring existing relationships within the landscape.

Heather is delighted to contribute to the practice by linking the built environment to the natural world.

Cheryl Brown began pursuing landscape design in Vermont, integrating her passions for gardening and the outdoors with design. Looking to explore the field of landscape design more extensively, she continued her education and received her MLA from Cornell University. While in school, she was employed as an intern with a residential design-build firm in the Aspen, Colorado area. Here she had the opportunity to work with both homeowners and architects to create outdoor living spaces.

After graduating, she gained experience working in a multidisciplinary firm on sustainable design projects, ranging in size from small scale entryway gardens to large scale, mixed use developments. She enjoys integrating sustainable design techniques aesthetically into landscape designs. Cheryl Brown brings over 12 years of residential design experience to her projects at JDDA and is a licensed Landscape Architect in the States of Connecticut and New York and member of the American Society of Landscape Architects.

Anthony Tavares began his career in landscape design having earned degrees in Landscape Architecture from the University of Connecticut and Graphic Design from Rivier University in New Hampshire. He has been pursuing his interest and passion for landscapes and gardens ever since. He has over 15 years of experience in the landscape industry. Aside from his experiences in landscape design, Anthony has a specific expertise in stone masonry.

Through a process that involves working closely with clients, Anthony creates meaningful and memorable outdoor spaces that exhibit artistic expression and a sophisticated design sense. In addition, he has also been a guest design critic and lecturer for the Landscape Architecture Program at the University of Connecticut. Anthony is a member of the Associates of Professional Landscape Designers and The Stone Trust, an organization with a mission to preserve and advance the art and craft of dry-stone walling.

Justin Quinn began his landscape architectural career in 2007 after serving as an Infantry officer with the United States Army. His experience overseas has given him a unique outlook and disciplined approach to his work. After joining James Doyle Design Associates in 2013 he was promoted to Studio Director, he manages a variety of custom residential projects and leads the Greenwich-based design studio.

Justin received a Bachelor of Science in Landscape Architecture from the University of Connecticut, earning the Connecticut American Society of Landscape Architecture’s Honor Award for design and technical coursework. A proud father of 3, Justin and his wife are long term residents of Litchfield county where he was elected and served on his town’s conservation and open space commissions.

Lynne Carroll has been a member of James Doyle Design Associates since its inception in 1996 as an Accounts Manager.

After a career in the health care industry as a lab technician and as a nutrition book editor in which she collaborated with medical officials all over the world, she diverged into a new career as a bookkeeper for local businesses in Westchester and Fairfield Counties. At JDDA, she is responsible for all the firm’s financial transactions and coordinates her work with the firm’s accountant. She works directly with clients to answer any of their questions relating to invoicing payment history and purchases.

Yvonne Brandt graduated from West Chester University with a Bachelor of Fine Arts Degree in Illustration and Art History, and worked as a local artist and photographer in Philadelphia. She has a passion for modern art and landscape photography and realized her potential as a graphic designer. To learn more she decided to return to school and received an Associate’s Degree in Graphic & Web Design while she was simultaneously working with a marketing firm in Philadelphia, which helped develop her skills as a marketing graphic designer.

In the course of her studies, she was awarded the 2011 and 2012 DCCC Purchase Arts Awards, adjudicated by Professors of The University of the Arts in Philadelphia. Her family owns a landscape firm in Philadelphia, and her love of horticulture mixed with her experience as a graphic designer has landed her here at James Doyle Design Associates as Creative Manager. Her creative and organizational skills assist her daily in designing and managing all marketing and graphic design projects.

Jeancarlo Barrientos was born and raised on the Eastern End of Long Island, developed a deep appreciation for high end residential design at a young age. Having interned for both design and design build firms in East Hampton & Westhampton beach, Jeancarlo has worked with diverse groups ranging from small garden spaces to large scale projects. He brings to the firm a thorough understanding of the landscape design process, a strong background in graphic communication techniques, and an in-depth knowledge of woody plant material and native plant communities. Jeancarlo’s education and professional experiences in both Architecture and Landscape Architecture have instilled in him a passion and love for incorporating built systems into natural environments.

Jeancarlo Barrientos graduated with a Bachelor’s degree in Landscape Architecture from the Environmental Science and Forestry school at Syracuse University. Jeancarlo is currently pursuing his landscape architecture license.  Outside of the office, Jeancarlo enjoys surfing, soccer and time spent at the ocean with family and friends.