From a single-family seismic retrofit to a commercial site development plan, GAD Engineering delivers civil and structural design that's safe, sustainable, and built to last — for builders, owners, and architects across Southern California.
About the practice
At GAD Engineering, we deliver innovative and sustainable civil and structural engineering solutions across a wide spectrum of projects — bringing your vision to life while upholding the highest standards of safety, functionality, and durability.
Our expertise spans residential, commercial, and industrial sectors. We deliver custom-tailored solutions that meet the unique demands of each project — whether you're designing a new building, renovating an existing structure, or addressing a complex infrastructure challenge.
From concept to completion, our team of skilled engineers and designers collaborates closely with architects, contractors, and owners to ensure every detail is grounded in technical rigor and practical buildability.
Capabilities
Discipline / 01
We shape the land beneath the structure — designing site work, drainage, and infrastructure that respects the environment and stands up to time, weather, and regulation.
Comprehensive site preparation — including grading, erosion control, drainage systems, roadways, utilities, and environmental considerations — designed to maximize the use of land while adhering to local regulations and sustainability practices.
Efficient systems that control water flow, prevent flooding, and protect the environment. Our engineers conduct detailed hydrology studies, identify flooding risks, and develop mitigation strategies. We prepare comprehensive Water Quality Management Plans to manage runoff, reduce pollutants, and meet local regulatory requirements.
We design and plan critical infrastructure systems — water, sewer, and storm drain networks — to serve residential, commercial, and industrial developments at every scale.
Discipline / 02
Buildings begin as bones. Our structural team designs foundations, frames, and lateral systems that are safe, economical, and attuned to California's seismic reality.
Our structural engineers work with architects and construction teams to design safe, cost-effective, and aesthetically pleasing structures. Rigorous analysis ensures every design meets safety standards and performance expectations.
Whether you're building on soil, rock, or an unstable surface, we provide custom foundation designs tailored to your project's needs — using advanced analysis tools to ensure stability and longevity.
Robust retaining wall design and earthwork studies that ensure slopes and other earth structures are safe and effective for the conditions of the site.
Using the latest seismic codes, we ensure your structure performs optimally during an earthquake — enhancing the safety and resilience of your investment. Specialties include:
Why work with us
A team of experienced engineers with the technical depth to tackle projects of any size and complexity. Our track record spans residential, commercial, industrial, and public-sector work — successfully delivered.
Committed to sustainable engineering practices — reducing environmental impact while enhancing the durability and energy efficiency of every structure we design.
Every project is unique. We take the time to understand each client's specific needs, goals, and constraints — then guide you from initial concept all the way through to project completion.
Safety is the top priority. Our designs adhere to the highest industry standards and local building codes — ensuring every project is safe for the environment and the people who use it.
Our work
Each project is a testament to our commitment to quality, innovation, and collaboration — from commercial centers and infrastructure systems to residential developments. A diverse portfolio shaped by disciplined craft.
Get in touch
Whether you're seeking a brief consultation or full design services, our team is ready to provide the expertise you need.
gdia@gadengineering.com