Forensic Expert Witness Profile


Peter E. Callander

Landscape Architect; Irrigation Consultant

Peter E. Callander, ASLA
3330 Alpine Road
Portola Valley, CA 94028

Phone: 415-298-0556


  • Licensed Landscape Architect (CA# 1308)
  • Site and landscape defects, claims analysis, standard of care for landscape architects & landscape contractors
  • Visual impact analysis, pedestrian planning and circulation, park planning, athletic field design and drainage, vegetation impacts
  • Over 75 cases in construction defects, pedestrian access, visual impacts, park planning, site drainage, repair costs, plant valuations, circulation and vegetation issues
  • Depositions have involved landslide and landscape, visual and vegetation issues, and pedestrian access in parking lots
  • Member of the American Society of Landscape Architects and Westcon