Structural Engineer in Tustin, CA
Structural Engineering · Tustin
Daniel De Witte, P.E. #82726, provides PE-stamped structural plans for Tustin homeowners and contractors. ADUs, garage conversions, room additions, and structural inspections with direct PE access.
Structural Engineering Services in Tustin, CA
Tustin offers diverse housing from historic Old Town homes to modern Tustin Ranch and Legacy developments. Each era of construction requires different structural approaches for additions, ADUs, and renovations. Affinity Design Group serves Tustin homeowners and contractors with PE-stamped structural drawings designed for the City of Tustin's building department standards. Beyond structural engineering, Affinity delivers complete plan sets with architecture, structural, and MEP coordinated under one PE — so Tustin homeowners and GCs don't need to hire and manage separate firms.
ADU & garage conversion
PE-stamped plans for Tustin ADU projects from Old Town to Tustin Ranch and Legacy. From $1,200.
Old Town Tustin homes pre-date modern seismic codes. Additions to these properties typically require evaluation of existing lateral systems and foundation connections. Tustin Ranch and Legacy homes are newer with simpler structural scoping.
Room additions & remodels
Structural engineering for Tustin home additions and expansions. From $2,500.
Old Town Tustin homes pre-date modern seismic codes and may need lateral system evaluation. Tustin Ranch additions follow standard CBC.
Load-bearing wall removal
Beam sizing and PE-stamped plans for open-concept remodels in Tustin homes. From $1,200.
Old Town Tustin homes may have non-standard framing from the early 20th century. Material verification precedes beam design.
Inspections & PE letters
PE-stamped inspection letters for Tustin property transactions and compliance. From $400.
Tustin inspection letters address different construction eras — Old Town (pre-1950s) vs. Tustin Ranch (1990s+) have distinct assessment considerations.
Commercial & TI
Structural engineering for Tustin commercial TI projects including Tustin Legacy and District developments.
Tustin Legacy redevelopment area has active commercial construction. Old Town Tustin commercial may involve historic structures.
Seismic retrofit
Foundation bolting and lateral upgrades for older Tustin homes, especially in Old Town. From $2,500.
Old Town Tustin homes pre-date modern seismic codes and are common retrofit candidates. Tustin Ranch homes are generally code-compliant.
Complete Plan Sets
Architecture, structural engineering, and MEP coordinated under one PE's oversight. One engagement, one set of drawings, one point of contact. No separate consultants to manage.
Architectural design — floor plans, elevations, sections, PE-stamped structural calculations and drawings, MEP engineering — mechanical, electrical, plumbing, All disciplines coordinated before submission, Plan check corrections + construction support
Three phases. Full PE oversight. Zero surprises.
From the first call to the final inspection, every project is led by a licensed PE with direct access throughout.
Clarity Before You Build
Submit the form. Tell us the project type, address, and timeline. You'll have a written scope and firm fee within 24 hours.
Engineered for Approval
Supported Through the Build
Direct PE access during construction. RFIs, field questions, inspector issues — same business day. The engineer who designed your project is the same one your GC can call.