Structural PE Stamp in Los Angeles County, CA: Unincorporated-Area Review

Unincorporated LA County's Building and Safety reviewers apply the adopted code in one of the most seismically demanding jurisdictions in the United States, and our submittals are prepared for that audience. The responsible-charge review verifies seismic parameters from the adopted code and the geotechnical site class, the lateral system's selection and high-seismic detailing, and the complete load path from roof to foundation. We check diaphragm and collector continuity, connection design for seismic forces, and foundation performance under seismic demands — including hillside-specific review where the site requires it. The calculation package states every parameter and references the adopted edition explicitly. Precision in the submittal mirrors the precision the county's reviewers bring to the check.

Foundation review implements the geotechnical investigation: bearing, settlement, seismic site class effects, and hillside measures — depth, drainage, and retaining coordination — where the report calls for them. Special inspections are noted on the drawings for the seismic and foundation work the code requires. We confirm drawings match calculations throughout, designate delegated-design items as deferred submittals, and organize the package for the county's correction process with indexed calculations and clear revision responses. Existing structures get field verification before the seal, with the lateral system evaluated against current seismic expectations. The California PE seals under B&P 6735 when the review is complete: seismic design verified, hillside demands addressed, and every revision confirmed.

A county structural package is ready when the AHJ is confirmed and the seismic engineering is fully verified. • Jurisdiction confirmed as unincorporated LA County (not the City of Los Angeles) from parcel records • Seismic design verified: parameters, site class, lateral system selection and high-seismic detailing • Complete seismic load path traced: diaphragms, collectors, vertical elements, foundations • Hillside foundation, retaining, and drainage demands addressed per the geotechnical report • Calculations indexed to drawings with the adopted code edition stated • Special inspections noted; deferred-design items designated as deferred submittals • California PE in responsible charge per B&P Code 6735 seals only after review and verified revisions