John (Jack) P Diehl, AIA NCARB LEED AP Expert Witness
Curriculum Vitae

Contact Information

  • Company: The Diehl Group Architects, Inc.
  • Phone: 760 487-1301
  • Cell: (858) 449-4112
  • Fax: 760487-1303
  • Website:
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Specialties & Experience

General Specialties: Architecture and Construction Defects

Specialty Focus: Forensic Architect, Architectural Professional Liability, Building Envelope, Arbitration/Mediation, Water Intrusion and damage, ADA Consulting, Slip and Fall, Building Code, Construction Defects, Waterproofing, Roofs, Fenestration, Construction Administration, EIFS Consulting, Construction Standards

Education: B.S. Archtecture, University of Texas, Arlingtion

Years in Practice: 40+

Number of Times Deposed/Testified in Last 4 Yrs: 35+

Additional Information

Responsible for field investigations, failure analysis, building code research, development of repair solutions, trial preparation and expert witness testimony in over two hundred (200) cases, residential or commercial, in support of construction defect litigation. Perform technical investigations and research of suspected design and construction problems. Verify and compare as-built conditions, design parameters, building jurisdiction requirements and applicable industry standards of care. Establish and coordinate expert teams for project investigations. Provide construction administration and quality control review for Type I and Type V building types. Provide quality assurance, evaluation and supervision of in-progress construction for major commercial and high rise structures for conformance to design, material and workmanship standards. AIA American Institute of Architects NCARB National council of Architectural Registration Boards LEED AP Leadership in Energy and Environmental Design Accredited Professional CSI-CDT Construction Specifications Institute Construction Document Technician General Contractor California, "B" License ICC International Code Council Licensed in the Following States: Arizona, California, Colorado, Florida, Hawaii, Nebraska, Nevada, New Mexico, Oregon, Texas, Utah, Washington