Covering Los Angeles, Orange County, and San Diego

Structural Engineering

Services

We work with you to achieve your goals

Accessory Dwelling Unit (ADUs)

A secondary suite (also known as an accessory dwelling unit (ADU), in-law apartment, granny flat, granny annex or garden suite)

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New Ground Up Construction

Sigma Structural Inc. provides comprehensive structural engineering plans and calculations for new ground-up residential construction projects throughout all of Southern California.

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Renovations

A renovation is the process of improving, updating, or restoring a building or space. Unlike a remodel, which changes a room's structure or layout, a renovation generally focuses on refreshing the existing space, often for aesthetic or functional purposes.

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SB9

California's SB 9 housing law, which allows for lot splits and two-unit developments in single-family zones.

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Retaining walls

Sigma Structural Inc. provides structural engineering plans and calculations for site retaining walls supported by either conventional foundations or pile foundations throughout Southern California.

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Frequent Clients

Professionals that we help depending on the situation:

  • Architects

    We help architects make their vision a reality.

  • Contractors

    We help contractors through tough construction phases of a project.

  • Property Owners

    We give home owners peace of mind ensuring is designed and built to be safe.






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Portfolio

Have a look at our successful works