Our mission is to provide you with sustainable beauty. We treat each of our projects with equal care and attention to detail—be it a garden, new home or transformation of a historic structure. Everyone deserves a healthy outdoor space and home tailored to their needs in which to raise their family, entertain friends, and live life.

As a woman-owned, family-run business, Preservation Green LLC provides comprehensive landscape design and masterplan development, architectural design services, project administration and site installation supervision, as well as design-build options. We consider every detail, including the benefits of tax incentive programs, long-term maintenance practices, and ways to integrate sustainable green technologies while maintaining historic preservation traditions. Our success stems from a unique ability to work with a client to balance and merge schedule, budget, and quality.

In the eyes of Preservation Green LLC, no garden or home is too small and no estate is too large. From private gardens and townhouses in Manhattan, to pocket parks within historic districts, to vast estates all over the world, we remain committed to providing our clients with a clear sense of how to understand a property and its historic structures in order to transform it into one of lasting beauty.



Barbara Paca | B.Larch, MFA, Ph.D., ASLA


Barbara Paca is a highly recognized academic and professional. Well-steeped in culture and history, her credentials are numerous, including a professional 5-year degree in Landscape Architecture from the University of Oregon, a Ph.D. from Princeton University, a Fulbright Scholarship to Ireland, and a postdoc at Princeton’s Institute for Advanced Study. In addition, Paca established the world’s first postgraduate course in Garden Preservation at London’s Architectural Association. Specializing in landscape preservation planning, Paca is a principal of Preservation Green LLC. She has worked on a wide range of landscape projects, from historic preservation, to the restoration of small residential properties and large estates, to public park master plans and roof gardens. Trained as an arborist, she also has extensive experience in woodlot management and wetlands remediation. Barbara’s design projects are noted for uniquely integrating her extensive understanding of academic, creative, and intellectual foundations. She has worked throughout Europe, South America, the U.S. and the Caribbean.

Curriculum Vitae


Philip Logan | B.A., M.Arch, AIA, LEED A.P., GRHC

Philip Logan graduated from Stanford University with a Bachelor of Arts in Architecture and continued his academic studies, completing a Masters degree from Columbia at the Graduate School of Architecture and Planning.  Before co-founding Preservation Green LLC with his partner, landscape architect Barbara Paca, Logan ran a private practice in architectural design and consulting services for public and private clients within the United States, the Caribbean and Europe. He has worked on a large range of buildings types and landscape masterplans, from design through project implementation and construction. Logan specializes in the transformation of historic structures; integrating green technologies, ADA compliance and best practices. Recently, Logan’s focus has been the restoration of structures in low-lying areas that are prone to flooding and proactive measures towards hurricane preparedness. 

Working with Paca, his solutions provide a seamless integration of buildings with surrounding landscapes, synthesizing garden structures, roof gardens and woodland estates into long-term sustainable masterplans. He is a member of Green Roofs for Healthy Cities, a member of the American Institute of Architects and is a LEED Accredited Professional.

Curriculum Vitae


Robert Paca | B.Sc., Ph.D.

Robert Paca is the scientific advisor for Preservation Green LLC. With a doctorate in biology from Johns Hopkins University and postdoctoral experience in the U.S. and Europe, he remains the company's expert on all matters green and provides technical oversight on new alternative technologies, plant quality, soil composition and brownfield remediation.