Eric T. Leeson | Principal Landscape Architect | Wallace LandscapeWallace Landscape Associates
Wallace Landscape Associates


Eric T. Leeson, RLA ASLA
Principal Landscape Architect

Eric joined Wallace Landscape Associates in June 2011 after a 16-year tenure with Terrain (formerly J.F. Styer Nurseries), nine years with the Philadelphia based land planning firm, John Rahenkamp Consultants, Inc., and a career start with Land Design Research, Inc., in Columbia, MD.

A lifelong Delaware Valley resident, he earned a BS w/ distinction in Landscape Architecture from the Pennsylvania State University in 1986.

Eric’s expertise and interests focus primarily on landscape design, construction management/team building and coordination of design implementations for residential clientele. In addition, Eric has extensive experience in residential, commercial and institutional land/site planning and development.

Application of a hands on field design and management style achieves an optimum result, responding to both the client’s vision and the property’s capacities and potential. Eric has a special interest in The Sustainable Landscape Initiative (SITES) specifically, as it applies to the residential landscape and coupled with the understanding of our regional considerations. The preservation and adaptive reuse or restoration of existing property features, creative control of storm water and utilization of predominantly native plants promote the development of sustainable landscape environments, mutually beneficial for both people and nature.

Eric also specializes in an environmentally appropriate approach to the integration of exotic/tropical plants into indigenous landscapes.

Memberships and Awards:

  • Member; American Society of Landscape Architects
  • Member; Brandywine Valley Association
  • Philadelphia Flower Show, Best in Show, Educational Exhibit, Zoological Society of Philadelphia, ‘Where Eagles Soar’
    • Pennsylvania Horticultural Society 2005
  • Design Show Home 2002
    • Philadelphia Magazine, May 2002
  • Merit award for a Built Project: DuPont Chestnut Run Plaza
    • American Society of Landscape Architects PA/DE Chapter 1993
  • Merit award for a Built Project: The Villages at Creekside
    • American Society of Landscape Architects PA/DE Chapter 1993
  • SAM Merit award for Best Landscape Design Detached Model Complex: Princeton Landing
    • New Jersey Builders Association 1993
  • Achievement in Planning Excellence (APEX) award: Pohatcong Village
    • New Jersey Builders Association 1991


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