Helen Dimos and her company, Landscape & Site Design, are located in Ridgefield, Connecticut. She holds a degree in Landscape Architecture from the City College of New York. Since starting her company in 1995, she has worked on residential properties in the New York City metropolitan area. Most of her projects are in Fairfield County, Connecticut and Westchester County, New York. Her public projects have included a memorial garden for St. Stephens Church, a plan for the Cass Gilbert Fountain and streetscape plantings in her hometown.

While establishing her own practice in Connecticut, Helen also worked with renowned landscape architect A. E. Bye on the design of estates in Connecticut, Westchester County and on Long Island. She also assisted him in editing his book, Moods in the Landscape, published in 1999.

After receiving her degree in Landscape Architecture in 1993, she worked for two years as an Assistant Landscape Architect in Central Park, working with The Central Park Conservancy to restore the magnificent Olmsted park. Her Central Park projects include the design of Azalea Walk, a woodland landscape between 75th and 77th Streets on the west side of the park, a planting plan for the renovation of the Arthur Ross Pinetum and the paving and configuration of the plaza entrance from Columbus Circle into the park.

She has been a member of the American Society of Landscape Architects (ASLA) since 1996. She is a member of The Garden Conservancy and the Ridgefield Garden Club. She also served for 20 years on the Ridgefield Architectural Advisory Committee.

Helen taught landscape design at the New York Botanical Garden in the Bronx for several years and conducted landscape design classes at Cooper Union.

She has traveled widely to visit gardens and parks in Japan, England, France and Italy and has given lectures on many of these gardens. Her interest in the landscape was inspired by her parents, both avid gardeners, and by the beautiful rolling countryside of Loudoun County, Virginia where she grew up.

Prior to becoming a landscape architect, she was President and co-founder of Hendler & Dimos, Inc., a commercial real estate firm in New York City, specializing in the sale of investment and development properties in Manhattan. She holds a degree in history from Bryn Mawr College.

When not working on other properties, Helen is at work in her own garden which is open to visitors through The Garden Conservancy and the MAD Gardeners.