Firm Profile

Robinson Anderson Summers, Inc. (RAS) is an award-winning landscape architectural design firm based in the Brandywine Valley. RAS enjoys national recognition for its work in public gardens and historic landscapes. The firm’s body of work is sensitive to landscape history and traditions, combined with the highest levels of creativity, horticultural richness and expertise, and environmental stewardship.

Founding Principal Rodney Robinson is recognized for his work in botanical gardens, residential estate design, and restoration of historic landscapes. Principals Geoff Anderson and Allan Summers have worked closely with Mr. Robinson for over twenty-five years. All three are trained in horticulture in addition to their professional degrees. The Principals are supported by three design professionals and administrative staff. The small size of the firm enables the Principals to maintain meaningful involvement in every project.

RAS provides planning and design services through all phases of landscape architecture, including LEED documentation. Projects undertaken range broadly in scope, size, complexity, and location; the firm has practiced across the country from Florida up to New York and New England, west to Ohio, Illinois, and Iowa. Whether retained as prime or as a sub-consultant, RAS has a reputation for collaborating effectively with architects, engineers, conservators, environmental consultants, artists, and horticulturists.

Rodney Robinson

Rodney Robinson

Founder, FASLA, LEED A.P.

Rodney Robinson is a Fellow of the American Society of Landscape Architects and has been practicing landscape architecture for over thirty-five years. He is primarily recognized for his work in public and private gardens, which has taken him across the country. He has won several awards for his work and developments in the field of landscape architecture, and continues to develop the profession through education and community activism.

Geoff Anderson

Geoff Anderson

Principal RLA, ASLA, LEED A.P.

Geoff has over twenty-five years of experience designing public and private gardens, historic landscapes, and urban spaces. He received his BS in Horticulture from North Carolina State University and Masters of Landscape Architecture from the University of Pennsylvania.  His most recent projects include a series of park renovations for the City of Wilmington and healing gardens for several hospitals.  He continues to work on new campus projects for the University of Delaware.

Allan Summers

Allan Summers

Principal, RLA, ASLA , LEED A.P.

Allan has a passion for horticulture and fine art and has been providing planning and design services through all phases of landscape architecture for over twenty-five years. He brings significant experience collaborating with other disciplines, running workshops, and working with public gardens and cultural institutions to design gardens of distinction. As a LEED accredited professional, he is sensitive to regional context and plant and materials selections to create ecologically based designs.

Jennifer Pennington

Jennifer Pennington

Landscape Architect, RLA, ASLA

Jen received her BLA from SUNY College of Environmental Science and Forestry, Syracuse. Her past experience includes work at two local public gardens, Longwood Gardens and Bowman’s Hill Wildflower Preserve. When not in the office she can be found searching for wildflowers and vistas in the Adirondack Mountains.

Annalisa Vapaa

Annalisa Vapaa

Landscape Architectural Designer

Annie received her BS in Agricultural Sciences with a concentration in Ornamental Horticulture from the University of Delaware and Masters in Landscape Architecture from Virginia Tech. She enjoys walks with her miniature schnauzer, Wolf, and cycling with her husband and friends. Her botanical interests keep her busy year round in her vegetable and ornamental gardens and greenhouse.

Andrew Calderone

Andrew Calderone

Landscape Architectural Designer

Andrew is a Philadelphia University Graduate who joined in 2016. His work includes Graphics, Construction Documents and Planning. He lives in Philadelphia, where you can find him exploring Fairmount Park, or at a local coffee shop.