At CES4, we provide comprehensive architectural design, engineering, and permit processing services tailored to residential construction projects of all sizes—from custom single-family homes to multi-unit developments and ADUs. Our experienced team delivers fully coordinated plans that balance aesthetics, functionality, and regulatory compliance.

We are experts in navigating the complex codes and approval processes of jurisdictions across Southern California. Our designs are not only visually compelling but also optimized for constructability, code compliance, and permitting speed. Whether your project requires full architectural plans, structural calculations, engineering, or zoning adjustments, CES4 ensures every detail is addressed with precision.

From concept to permit approval, our streamlined process helps clients avoid delays, minimize revisions, and move confidently into construction—saving time, reducing costs, and ensuring smooth project execution.