Grant Thornbrough - Principal

Grant established his landscape architecture and planning practice in South Florida in 1975 after obtaining a Master of Landscape Architecture degree from the University of Michigan and a Bachelor of Science in Biology from Rollins College. Since then the firm has grown to become a highly respected and innovative planning and design practice. Grant has led the way on over 80 award winning projects on the local, state, and regional levels and was awarded Landscape Architect of the Year by the American Institute of Architects. In 2004, Grant was recognized by the Boca Raton Historical Society as a ‘Legend’ whose contributions acted as a catalyst for major positive change in the growth of the city.

Mr. Thornbrough is former Chairman of the Boca Raton Community Appearance Board, serving as a member for 34 years. He served on the City of Boca Raton A1A Landscape Task Force and is a past member of the Boca Raton Community Redevelopment Agency Advisory Committee and the West Atlantic Avenue Architectural Review Board in Delray Beach. 

Carol Borough Perez - Principal

Carol has been with A. Grant Thornbrough & Associates since 1988, working on custom residential design, mixed use developments, city and community redevelopment projects as well as campuses throughout South Florida. Carol earned a Bachelor of Landscape Architecture degree from the University of Florida and is a Florida registered landscape architect.

Her residential work has included detailed design for urban mixed use projects, rooftop amenity decks and streetscape design.  Carol oversees our staff of talented landscape architecture graduates and event designers. Her responsibilities carry through to hardscape, landscape and irrigation construction documents.  Carol has been project manager for several urban large scale mixed use and residential developments in Boca Raton and Delray Beach.  In addition to the development of design and construction documents, she excels in construction administration and coordination between the design disciplines, government agencies, and contractors to see the project through to completion.