Civil Engineering Services Throughout California

Civil Engineering Services for SB 1123 & SB 684 Developments in California

At the core of every successful project is smart, efficient civil engineering design. We provide expert civil engineering services in California, helping developers, property owners, and investors navigate complex regulations and unlock the full potential of their land.

With new housing laws like SB 1123 and SB 684, opportunities for lot splits, small subdivisions, and multi-unit residential development have expanded—but so have the engineering and permitting challenges. Our team specializes in SB 1123 engineering design and SB 684 subdivision services, guiding projects from feasibility through approvals and construction.

Full-Service Civil Engineering

We offer comprehensive land development engineering services tailored to residential and urban infill projects:



• Site planning & feasibility studies
• Grading and drainage plans (Los Angeles & California)
• Utility design (water, sewer, storm drain systems)
• Subdivision mapping & lot split design
• Hydrology & hydraulic analysis
• Street improvement plans (B-Permit, public works)
• Permit expediting & agency coordination (LADBS, Public Works)
• Construction support & plan check correctionsOur proactive approach ensures faster approvals, reduced costs, and optimized site design.

Our proactive approach ensures faster approvals, reduced costs, and optimized site design.

SB 1123 Civil Engineering & Lot Split Design

SB 1123 California allows property owners to combine urban lot splits with multi-unit residential development, making it a powerful tool for increasing density and property value.

Benefits of SB 1123:

• Enables lot splits with multi-unit construction
• Streamlined approvals for infill development projects
• Ideal for Los Angeles small lot development
• Maximizes land use in high-demand areas

Engineering Expertise for SB 1123:

Our team provides:

• SB 1123 site planning and feasibility analysis
• Utility layout for subdivided lots
• Grading design for small and irregular parcels
• Stormwater compliance (LID / SUSMP)
• Fire access and frontage compliance



We ensure your project meets all California civil engineering standards while maximizing yield.

SB 684 Subdivision Engineering Services

SB 684 California simplifies the subdivision process for projects with 10 units or fewer, reducing delays and making development more accessible.

Benefits of SB 684:

• Streamlined small subdivision approvals
• Faster timelines compared to traditional tract maps
• Reduced regulatory hurdles (including CEQA in many cases)
• Ideal for real estate investors and small developers

Engineering Services for SB 684

We provide:

• Subdivision design and tentative maps
• Parcel map engineering (California)
• Street and access design (public & private)
• Utility infrastructure planning
• Grading, drainage, and stormwater plans

Our expertise ensures your SB 684 project in Los Angeles or California moves quickly from concept to approval.

Los Angeles Civil Engineering & Permitting Experts

We specialize in Los Angeles civil engineering services, with extensive experience navigating:

• LADBS permitting requirements
• B-Permit street improvement plans
• Bureau of Engineering (BOE) approvals
• Grading permits and hillside regulations
• Stormwater compliance (LID / SUSMP / NPDES)

Whether you’re developing under SB 1123 or SB 684, we streamline the process and reduce costly delays.