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Business Details
31 Years
experience
Trusted Civil Engineering and Design Services in Southern California
Stewart Design and Engineering has been a trusted name in civil engineering and design for three decades, serving Southern California with unwavering commitment to integrity, knowledge, and excellence. Our team of licensed professionals brings decades of combined experience to every project, specializing in land development, structural engineering, and sustainable design solutions. We pride ourselves on delivering high-quality results efficiently, ensuring client satisfaction through transparent communication and innovative problem-solving. As a certified Minority Business Enterprise, we emphasize ethical practices, community engagement, and technical expertise.

Our engineers and designers hold licenses across multiple states, reflecting our regional expertise and dedication to meeting diverse client needs. From grading plans to hydrology assessments, we provide comprehensive services tailored to residential, commercial, and institutional projects. Our leadership team combines technical mastery with a passion for fostering human connections through design, ensuring projects align with both functional requirements and environmental stewardship. With offices in Riverside, California, we serve six counties, offering personalized support and multilingual services to accommodate our diverse clientele.
Services
Grading Plans Structural Engineering Hydrology Assessments Land Development Construction Documents SWPPP Services Site Planning Tenant Improvements Interior Remodel ADU Design
Details
  • Year established: 1995
Highlights and features
  • We offer 30 years of proven expertise in civil engineering and design.
  • Our team includes licensed professionals in four states with specialized certifications.
  • We provide end-to-end project support from conception to construction.
  • Our certified Minority Business Enterprise status reflects our ethical standards.
  • We combine technical excellence with personalized, multilingual client service.
Associations and certifications
  • MBE
Services
Grading Plans
Our grading plans ensure proper drainage and site preparation for construction projects. We analyze topography to create precise elevation models that comply with local regulations. Clients benefit from reduced erosion risks and optimized land use for residential and commercial developments.
Structural Engineering
We design safe, code-compliant structural systems for new constructions and renovations. Our engineers use advanced software to analyze loads and material specifications. Clients receive detailed documentation for permits and construction across residential, educational, and commercial projects.
Hydrology & Hydraulics
Our hydrology services assess stormwater management and flood risks for development sites. We create hydraulic models to design effective drainage solutions. Clients gain compliance with environmental regulations while protecting properties from water-related damage in urban and rural settings.
SWPPP Services
We develop comprehensive Stormwater Pollution Prevention Plans for construction sites. Our QSD/QSP-certified team ensures compliance with state and federal regulations. Clients receive actionable strategies to minimize erosion and control runoff during project implementation.
Land Development
We provide end-to-end land development services including entitlements and utility planning. Our team coordinates with agencies to streamline approval processes. Clients benefit from efficient site layouts that balance functionality, sustainability, and regulatory requirements for large-scale projects.
People
Carl W. Stewart III
CEO/Principal Engineer
Licensed engineer in four states with 25+ years of experience in civil engineering and land development projects across residential and commercial sectors.
Carl W. Stewart II
VP of Design
Design expert with 30+ years of experience creating innovative, cost-effective solutions for complex development projects while maintaining client-focused relationships.
Christine N. Stewart
Project Manager
Interior design specialist and business entrepreneur with expertise in project management and client relations, ensuring projects meet quality standards and client expectations.
Chayla S.
Drafter/Designer
Civil engineering student and professional drafter with hands-on experience in design software and active participation in community-focused nonprofit organizations.
Questions
What engineering services do you specialize in?
We specialize in grading plans, structural engineering, hydrology assessments, SWPPP services, and land development projects for residential and commercial clients.
Which areas do you serve?
We serve Ventura, Los Angeles, San Bernardino, San Diego, Riverside, and Orange counties with licensed professionals across California and neighboring states.
Are you certified as a minority-owned business?
Yes, we are a certified Minority Business Enterprise (MBE) committed to ethical practices and community engagement through our projects.
How experienced is your team?
Our leadership team has over 80 combined years of experience in civil engineering, with licenses in four states and specialized project expertise.
Do you offer multilingual support?
Yes, we provide Spanish language support to better serve our diverse client base across Southern California.
What construction documentation do you provide?
We create comprehensive construction documents including site plans, utility layouts, and structural specifications for permitting and project implementation.