Precision in Design.
Excellence in Engineering.
We are a dual-disciplinary firm bridging the gap between creative architectural vision and rigorous engineering standards. From concept to permit, we deliver comprehensive solutions for modern living.
At the helm of HRH Design & Engineering is Hamid R. Hosseini, a licensed Professional Engineer (P.E.) who brings a rare combination of industrial precision and architectural creativity to the design & drafting market.
Unlike traditional drafting firms, HRH approaches every project—whether a custom home, ADU, or commercial system—with an engineering-first mindset. This ensures that our designs are not only aesthetically pleasing but also structurally sound, energy-efficient, and fully compliant with California’s strict building codes.
With a distinguished background that includes serving as a municipal expert in Oceanside, Hamid possesses insider knowledge of the regulatory landscape. This expertise allows our firm to navigate complex zoning codes, coastal exemptions, and permitting processes with exceptional speed and accuracy.
Core Competencies
Professional Credentials
Licensed Professional Engineer (P.E.)
State of California
Official Justice Expert
Biomechanic & Industrial Engineering
Patent Engineering Specialist
Mechanical System Connections
Technology Stack
We utilize industry-leading software to ensure precision in every calculation and drawing.
Our Promise
"To deliver unparalleled design and drafting solutions with a transparent fixed-fee structure. We believe in minimizing stress for homeowners by handling the complex technical details—from initial concept to final permit acquisition."