California structural engineering projects.
Selected residential and commercial projects engineered by CMZStudio.
Auburn Hillside Foundation Inspection
Foundation InspectionA laser-level survey isolated 1.7 inches of floor elevation change across 9.08 feet near the primary bedroom.
Auburn, CA · Report complete
Pleasanton Foundation Inspection: Crawl Space Moisture
Foundation InspectionFloor elevations showed limited change, but a Pleasanton foundation inspection found crawl space moisture, a horizontal crack, efflorescence, and poor drainage.
Pleasanton, CA · Report complete
Hillside Residence Retrofit
Seismic RetrofitFull seismic retrofit of a 1960s hillside home on a stepped foundation.
Oakland, CA · Complete
Open-Concept Remodel
Load-Bearing Wall RemovalRemoved two load-bearing walls to create a single great room.
San Jose, CA · Complete
Mixed-Use Foundation
Foundation EngineeringNew foundation system for a three-story mixed-use building.
Fremont, CA · In progress
Detached ADU Structural Design
ADU Structural DesignStructural design for a detached backyard ADU on a tight urban lot.
Albany, CA · Complete
SB721 Balcony Inspection
Balcony / SB721 InspectionExterior elevated element inspection and repair specification for a multifamily building.
Bay Area, CA · Complete
Lei Zheng
Founder & Principal Engineer, CMZStudio
California Professional Engineer
Licensed engineering from first calculation through plan check.
Lei Zheng has held a California Civil Engineer license since 2006. At CMZStudio, he reviews structural decisions, prepares and stamps engineering documents, and supports responses through city plan check.
Official California DCA record
C-69809
- License holder
- Lei Zheng
- License type
- Civil Engineer
- Issued
- March 17, 2006
Status verified July 23, 2026
- California-licensed
- 20 years
- Official DCA record
- C-69809