J Hanna Engineering provides civil and structural engineering for custom homes, additions and ADUs, mixed-use developments, commercial and industrial buildings, site development, retaining structures, equipment supports, and infrastructure improvements. Our work includes analysis, calculations, permit drawings, grading and drainage, technical reports, multidisciplinary coordination, plan-check responses, and construction support. Each assignment is approached with practical engineering judgment, code compliance, constructability, and clear communication from concept through completion.