Structural engineering · Glendale, CA

Structural Engineering Services in Glendale, CA

Connect with engineering firms serving Glendale and the greater Los Angeles metro area. Common work runs from load-bearing wall removals and ADUs to hillside foundations, seismic retrofits and more.

Also searched as: residential structural engineer Glendale CA · stamped structural calculations Glendale · Glendale ADU structural engineer · Glendale hillside foundation engineer · structural engineer near me Glendale

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Local code & loads

Glendale building code & ASCE 7 design loads

Glendale enforces the 2025 California Building Code (CBC), based on the 2024 IBC, with City of Glendale amendments. Stamped calculations submitted for permit reference the design parameters below.

Values shown for reference only — project-specific values from the ASCE 7 Hazard Tool should be used for engineering design at the actual project address.

ASCE 7 design parameters

Default values used for most residential and light-commercial projects in Glendale. Site Class and seismic spectral values may shift based on geotechnical investigation.

Building code	2025 California Building Code (CBC), based on the 2024 IBC, with City of Glendale amendments
ASCE 7 edition	ASCE 7-22
Seismic Sₛ	2.45g
Seismic S₁	0.79g
Site class	Default
SᴅS	1.7g
Sᴅ₁	1.21g
Seismic Design Category	E
Ultimate wind speed	95 mph
Ground snow load	0 psf

Risk Category II assumed for typical residential and light commercial use — confirm with your engineer if the occupancy or use may require a higher category.

Glendale sits in a high-seismic part of the metro, and many sites land in Seismic Design Category E. The city's hillsides bring fractured and weathered bedrock and real slope-stability concerns, while the valley floor is alluvium that can include expansive clay and liquefiable layers. The values below are regional placeholders only. Always pull site-specific values from the ASCE 7 Hazard Tool (https://ascehazardtool.org) for the actual project address.

Common projects engineers design in Glendale

The work engineers handle frequently in Glendale and the surrounding Los Angeles County.

Load-bearing wall removals and open-concept remodels
Accessory dwelling units (ADUs) and garage conversions
Hillside foundation design and retaining walls
Room additions and second-story additions
Seismic retrofit of older wood-frame and soft-story buildings
Deck, balcony, and outdoor living structures
Rooftop solar array structural verification
Grading and slope-stabilization design

What's different about Glendale

Local conditions that affect structural design

City-specific factors that show up in many Glendale calculations — and the things plan reviewers look for.

Glendale's hillsides are a defining feature and a structural challenge. Fractured, weathered bedrock and steep terrain make slope stability, retaining walls, and grading central to a lot of projects, and the city caps cut-slope heights and requires terracing on tall slopes.

Many sites fall in Seismic Design Category E, so lateral design and strong connections matter, especially on hillside homes where the load path can be complicated.

The valley floor is alluvium that can include expansive clay near the surface and liquefiable layers where groundwater is shallow, so foundation design often follows a geotechnical report.

Glendale has a large stock of older apartment buildings and a voluntary soft-story retrofit track, which keeps seismic retrofit work in steady demand.

ADUs are popular across the city, including on hillside lots where the foundation and access design need engineering attention.

Permits

Where to submit your Glendale permit

Stamped calculations from clearspan are submitted directly to the City of Glendale Building & Safety. Most residential structural submittals are reviewed online.

Building department

City of Glendale Building & Safety

633 E Broadway, Room 101, Glendale, CA 91206

(818) 548-3200

Visit the building department →

Submittal notes

Glendale's Building & Safety division enforces the California code with local amendments. Hillside projects usually need grading permits with engineer or geologist certification of slope stability. Confirm the jurisdiction for the project address before submitting.

FAQ

Structural engineering in Glendale — FAQs

The questions Glendale contractors and homeowners ask most often.

Do I need an engineer to remove a wall in my Glendale home?+

If the wall is load-bearing, stamped structural calculations from an engineer will help you avoid plan-review comments and keep the Glendale permit moving.

What does building on a Glendale hillside involve structurally?+

Hillside lots usually need slope-stability review, engineered foundations such as caissons or deepened footings, and often retaining walls. The city requires engineer or geologist certification for grading, so a geotechnical or engineering-geology report is typically part of the design.

How quickly can I get stamped calculations for a Glendale permit?+

Most residential beam and wall-removal calculations are turned around within a few business days through clearspan's process. Timelines depend on scope, and availability of an engineer to review and accept the design through clearspan.

Nearby cities

Structural engineers in other Los Angeles Metro cities

Browse city pages for nearby jurisdictions.

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