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Karen Sebastian, LLC

44 Leonard Street
Waltham, MA 02451
(617) 529-6719
Company Profile: 

Karen Sebastian, LLC

Karen Sebastian, LLC combines extensive knowledge in landscape architecture, horticulture and project implementation to create intelligent and unusual project designs that are beautiful, sustainable and tailored the the individual clients' needs and lifestyles.

"Our process is simple," explains Karen Sebastian. "We help our clients identify and formalize their goals and desires. Then we look for opportunities to get more from their spaces while meeting these goals. We translate those ideas and conversations into specific design options. Then we deliver creative solutions."

Sebastian earned her Master of Landscape Architecture at the University of Massachusetts, Amherst, where she was also the recipient of a National Honor Award from the American Society of Landscape Architects. Sebastian believes that it takes teamwork to turn a good project into a great one. Her work ethic is based on building strong relationships with everyone involved in the project and taking all of their ideas into consideration.

Sebastian has a deep knowledge of plants and specializes in planting design. In addition to her design firm, she teaches classes in plant identification, residential design and planting design at the New England Wildflower Society and the Massachusetts Horticultural Society. She also occasionally serves as a professor of landscape architecture in the department of Landscape Architecture and Regional Planning at UMass, Amherst.

Sebastian is careful to identify value in what already exists in a site – she looks for inspiration and opportunity in existing features like trees, topography and exposed stone that might make the site special then starts to design from there. Preserving and complementing existing elements lends focus and unique qualities to each design. Sebastian also takes an ecologically sensitive approach when designing and choosing the plants that will make up the project, using plants that suit the conditions of the land, avoiding invasive exotics and choosing plants that will thrive in the given environment.

As Featured In...

Tennis Court by landscape architect Karen Sebastian
Strawberries and cream? Check. Pimm’s Cup? Check. It’s time for Breakfast at Wimbledon, a beloved summertime ritual where we genteelly nosh while watching the latest tennis phenoms grunt and sweat it out at the storied All England Club in London. In honor of the finals this weekend, BDG has created a bit of a racket of our own. Here follows five smashing tennis court designs by Boston's top...
High-end homes on the Boston Marathon route
When the Boston Marathon comes around everyone wants to be on the route. From the starting point in Hopkinton to the Boylston Street finish line, fans and family members jockey for position as they try to scope out the very best vantage to cheer on the runners. Should they stake out turf on Heartbreak Hill and buoy the athletes in their time of need or make a beeline for the Back Bay finish line...
high-end residential home landscape
Glorious Gardens: Backyard Eden Landscape Architecture by Karen Sebastian, LLC Landscape architect Karen Sebastian of Karen Sebastian, LLC gave a sunny Sudbury home an outdoor environment that rivals the layout of any interior domain. While the front garden greets homeowners and guests with teeming fothergilla and tulips by the porch, the backyard was sculpted into a series of outdoor “rooms”...

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