safe structures. smart designs. lasting results.

“Trusted structural engineering partner specializing in safe, efficient, and cost-effective building systems.”

“Since 1989, Lee & Lee has delivered structural engineering solutions for commercial, residential, and public projects across California and beyond.”

35+

YEARS OF SERVICE

5000+

PROJECT DELIVERED

mbe

MINORITY BUSINESS

Our Services

STRUCTURAL ENGINEERING & DESIGN

We deliver safe, efficient, and code compliant designs across wood, steel, concrete, CMU, and tilt-up systems tailored to meet project goals from concept through construction.

REMODEL & ADAPTIVE REUSE

We provide structural design solutions for renovations, seismic retrofits, and adaptive reuse breathing new life into aging structures while meeting today’s codes and performance standards.

PERMIT-READY DOCUMENTATION

We prepare complete structural calculation sets and construction drawings ready for submission, review, and approval ensuring smooth permit processes and compliance with all regulatory requirements.

About
our company

Lee & Lee Structural Engineering Inc. is a California-based structural consulting firm founded in 1989. With over three decades of experience, we specialize in delivering safe, efficient, and cost-effective structural designs tailored to meet the unique needs of each client.

Our team brings expertise in wood, concrete, steel, and masonry systems across a wide variety of project types—including residential complexes, commercial buildings, hotels, factories, religious facilities, and adaptive reuse developments.

We combine engineering fundamentals with modern design tools like ETABS, SAFE, SAP2000, and AutoCAD to ensure that every project meets the highest standards of safety, constructibility, and compliance.

At Lee & Lee, we are committed to personalized service, clear communication, and practical solutions that help clients achieve their goals from concept to construction.

OUR CLIENTS