Structural Engineering Services in California
From custom homes and ADUs to commercial buildings and industrial warehouses, NTS Engineering designs the structural systems that keep buildings standing — safely, efficiently, and within budget. Plans that clear city review the first time.
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Structural Engineering Services Throughout California
NTS Engineering provides comprehensive structural design, analysis, consulting, and construction support services for residential, commercial, industrial, institutional, and mixed-use developments throughout California. Our licensed structural engineers work closely with architects, developers, contractors, homeowners, and public agencies to deliver safe, efficient, and cost-effective structural solutions for projects of every size.
From custom homes and accessory dwelling units (ADUs) to commercial buildings, industrial facilities, retaining walls, tenant improvements, and seismic retrofits, our team designs structures that meet current building codes while maximizing constructability, durability, and long-term performance.
Our engineers specialize in wood-framed, steel-framed, reinforced concrete, masonry, and cold-formed steel (LGS) structural systems. By combining advanced structural analysis software with practical construction experience, we create structural designs that are both economical and buildable.
Why Choose NTS Structural Engineering?
Selecting the right structural engineer can significantly impact project costs, permit approval timelines, and construction efficiency. Our structural engineering team provides:
- Licensed structural engineers with extensive California experience
- Coordination with architects, civil engineers, and geotechnical engineers
- Structural plans and calculations for permit approval
- Seismic and earthquake-resistant design
- Residential, commercial, and industrial design expertise
- Construction-phase engineering support
- Cost-effective value engineering solutions
- Structural inspections and evaluations
- Fast turnaround times
- Design solutions tailored to local building code requirements
Unlike many structural engineering firms, NTS offers in-house geotechnical, civil, and structural engineering services, allowing project teams to streamline communication and accelerate project delivery.
Residential Structural Engineering Services
Complete structural design services for custom homes, ADUs, additions, and interior modifications throughout California.
Custom Homes
Our structural engineers provide complete structural design services for custom homes, luxury residences, hillside developments, and high-end residential construction. We develop structural plans that support architectural vision while maintaining safety, efficiency, and code compliance.
Homeowners and developers building custom or luxury homes throughout California.
Accessory Dwelling Units (ADUs)
We specialize in structural engineering for ADUs, detached ADUs, garage conversions, junior ADUs (JADUs), and guest houses. Our engineers prepare structural calculations, framing plans, foundation plans, and permit-ready construction documents.
Homeowners adding an ADU. Contractors and architects managing ADU projects at scale.
Home Additions and Remodels
Whether adding a second story, expanding living space, or modifying an existing structure, our team evaluates existing conditions and develops structural solutions that safely integrate new construction with existing buildings.
Homeowners expanding or modifying existing residential structures.
Load-Bearing Wall Removal
Removing load-bearing walls requires careful structural analysis and design. We provide beam sizing, framing modifications, and structural calculations to support open-concept renovations while maintaining structural integrity.
Homeowners and contractors performing interior structural modifications.
Commercial Structural Engineering Services
NTS Engineering supports developers, architects, and contractors with structural design services for:
- Office buildings
- Retail centers
- Restaurants
- Medical offices
- Mixed-use developments
- Apartment buildings
- Affordable housing projects
- Religious facilities
- Tenant improvements
Our commercial engineering solutions focus on code compliance, cost control, construction efficiency, and long-term building performance.
Industrial Structural Engineering
Industrial facilities often require specialized structural systems capable of supporting heavy loads, equipment, and operational demands. Our engineers provide structural design services for:
- Warehouse buildings
- Manufacturing facilities
- Distribution centers
- Equipment foundations
- Mezzanines
- Industrial coolers
- Storage facilities
- Steel-framed structures
We work closely with owners and contractors to develop practical engineering solutions that minimize construction costs while maximizing operational functionality.
Retaining Wall and Foundation Engineering
Retaining walls and foundation systems play a critical role in the stability of residential and commercial developments. NTS Engineering provides design services for:
- Concrete retaining walls
- Masonry retaining walls
- Segmental block retaining walls
- Soldier pile walls
- Cantilever retaining walls
- Foundation underpinning
- Deep foundations
- Structural slabs
- Elevated decks and terraces
Because our firm also employs geotechnical engineers, we can efficiently coordinate structural and soil engineering recommendations to create integrated and cost-effective solutions.
Structural Engineering Services for Palisades and Eaton Fire Rebuild Projects
NTS Engineering is committed to helping homeowners, architects, builders, and developers rebuild stronger following the devastating Palisades Fire and Eaton Fire. Our licensed structural engineers provide comprehensive structural design, engineering calculations, permit-ready plans, and construction support services for residential and commercial properties throughout Pacific Palisades, Altadena, Pasadena, Malibu, Sierra Madre, and surrounding fire-affected communities.
Whether you are rebuilding a custom home, hillside residence, luxury estate, accessory dwelling unit (ADU), retaining wall, or commercial building, our team provides practical structural solutions designed to meet current California Building Code requirements while supporting safe, resilient, and efficient reconstruction.
We understand the urgency of rebuilding after a wildfire and work closely with project teams to streamline the engineering process, accelerate permit approvals, and help families return to their properties as quickly as possible.
Structural Engineering for Wildfire Rebuild Projects
Reconstructing a property after a wildfire requires more than simply replacing what was lost. Modern building codes, updated seismic standards, local agency requirements, and site-specific conditions often require a completely new structural design approach. NTS Engineering provides:
- Structural plans for home rebuilds
- Structural calculations for permit approval
- Custom home structural design
- Luxury residential structural engineering
- Hillside home structural engineering
- Foundation and framing design
- Retaining wall structural design
- ADU structural engineering
- Structural evaluations of partially damaged buildings
- Commercial building reconstruction engineering
- Seismic design and code compliance
- Construction-phase engineering support
Pacific Palisades Fire Rebuild Structural Engineering
Pacific Palisades presents unique structural engineering challenges due to its hillside terrain, coastal exposure, retaining walls, and complex foundation conditions. Our structural engineers have experience designing structures that accommodate the area's demanding geologic and seismic conditions while meeting stringent local building requirements.
We provide structural engineering services for:
- Custom home rebuilds
- Luxury estate reconstruction
- Hillside residences
- Coastal properties
- Retaining walls and site structures
- Foundation replacement projects
- New residential construction
- Guest houses and ADUs
- Structural upgrades and redesigns
Our team collaborates with geotechnical engineers, architects, and contractors to create integrated solutions that support efficient rebuilding and long-term durability.
Eaton Fire Rebuild Structural Engineering
For homeowners rebuilding in Altadena, Pasadena, Sierra Madre, and neighboring communities impacted by the Eaton Fire, NTS Structural Engineering delivers responsive engineering services tailored to post-fire reconstruction projects.
Our services include:
- Structural design for replacement homes
- Permit-ready structural plans
- Structural calculations and engineering reports
- Foundation engineering
- Framing design
- Structural detailing
- Retaining wall design
- Seismic engineering
- Construction support and field observations
We understand local jurisdiction requirements and help clients navigate the rebuilding process from concept through construction.
Cold-Formed Steel and Light Gauge Steel Structural Engineering Services
NTS Engineering provides specialized cold-formed steel (CFS) and light gauge steel structural engineering services for residential, commercial, multifamily, industrial, and modular construction projects throughout California. Our licensed structural engineers deliver innovative, code-compliant, and cost-effective design solutions that maximize the benefits of modern steel framing systems while ensuring structural safety, durability, and construction efficiency.
Cold-formed steel construction continues to gain popularity due to its strength, dimensional stability, fire resistance, sustainability, and versatility. From custom homes and multifamily developments to commercial buildings and modular structures, our engineering team provides complete structural design, analysis, detailing, and permit-ready construction documents for projects utilizing light gauge steel framing systems.
Comprehensive Light Gauge Steel Engineering Solutions
NTS Engineering offers complete engineering services for projects utilizing cold-formed steel and light gauge steel structural systems, including:
- Cold-formed steel structural design
- Light gauge steel framing design
- Load-bearing steel stud design
- Non-load-bearing steel framing systems
- Steel floor framing design
- Steel roof truss engineering
- Prefabricated wall panel engineering
- Modular building structural design
- Mid-rise multifamily framing design
- Mixed-use development engineering
- Commercial tenant improvement framing
- Structural calculations and permit support
- Shop drawing review and engineering coordination
- Seismic design and lateral analysis
- Construction-phase engineering services
Benefits of Cold-Formed Steel Construction
Cold-formed steel framing offers significant advantages compared to traditional wood framing and conventional structural systems. Benefits include:
- Superior strength-to-weight ratio
- Non-combustible construction materials
- Improved fire resistance
- Resistance to termites and pests
- Reduced material shrinkage and warping
- Enhanced dimensional accuracy
- Faster construction schedules
- Increased durability and longevity
- Sustainable and recyclable materials
- Improved seismic performance
- Reduced maintenance requirements
As building codes continue to evolve, many developers and builders are selecting cold-formed steel systems to improve project quality, resiliency, and long-term value.
Who We Work With
Architects, Contractors & Developers
NTS Engineering is the structural firm architects and contractors call when they need plans that are constructable, code-compliant, and ready for city review. Our plans are coordinated with architectural and civil drawings — plan checkers don't find discrepancies that send projects back.
- 24h response
- Plans that clear review the first time
- Coordinated drawings
- Peer review available
Homeowners
If you're building a custom home, adding an ADU, or retrofitting your house for seismic safety — NTS Engineering explains what your project needs, delivers clear stamped plans, and coordinates with your architect and contractor.
- Fixed-fee proposals
- Accepted by all SoCal cities
- We coordinate with your team
Structural Engineering in Action
A selection of custom homes, fire rebuilds, hillside foundations, retaining walls, and commercial structures engineered and permitted across California — from coastal caisson foundations on the Pacific Coast Highway to hillside ADUs and site retaining systems.
22 PCH Fire Rebuild
Malibu, CA
26 PCH Fire Rebuild
Malibu, CA
Redondo Beach Custom Home
Redondo Beach, CA
Los Angeles Hillside ADU
Los Angeles, CA
Laurel Residence Retaining Walls
Rancho Palos Verdes, CA
Lafayette Tennis Club
Lafayette, CA
Serving All of California
Orange County
- Santa Ana
- Huntington Beach
- Fountain Valley
- Orange
- Costa Mesa
Los Angeles County
- Long Beach
- Glendale
- Pasadena
- Torrance
- Pomona
- Lancaster
- Palmdale
Riverside County
- Riverside
- Moreno Valley
- Corona
San Bernardino County
- San Bernardino
- Fontana
- Rancho Cucamonga
San Diego County
- Escondido
Ventura County
- Ventura
Santa Clara County
- San Jose
- Sunnyvale
San Francisco County
- San Francisco
Alameda County
- Fremont
- Hayward
Sacramento County
- Sacramento
Fresno County
- Fresno
Stanislaus County
- Modesto
Kern County
Countywide coverage
San Mateo County
Countywide coverage
Santa Barbara County
Countywide coverage
Sonoma County
Countywide coverage
Marin County
Countywide coverage
Santa Cruz County
Countywide coverage
+ surrounding communities
Frequently Asked Questions
Yes. Most California jurisdictions require structural calculations and engineered plans for ADU permit approval.
Ready to Move Your Project Forward?
Whether you need structural plans for a custom home, an ADU permit package, a seismic retrofit assessment, or a full commercial structural design — NTS Engineering is ready to help. Call us at 949-996-0990 or fill out the form above. We respond within 24 hours.