Structural Engineer in Fullerton, CA
Structural Engineering · Fullerton
Daniel De Witte, P.E. #82726, delivers PE-stamped structural plans for Fullerton homeowners and contractors. ADUs, garage conversions, room additions, and structural inspections with same-day response and direct engineer access.
Structural Engineering Services in Fullerton, CA
Fullerton has a strong ADU and garage conversion market driven by its mix of post-war single-family homes and newer infill development. Many Fullerton homeowners are adding rental units or expanding living space on established lots. Affinity Design Group provides PE-stamped structural drawings tailored to Fullerton's building department standards. Every set is reviewed for jurisdiction-specific plan check triggers before submission. Beyond structural engineering, Affinity delivers complete plan sets with architecture, structural, and MEP coordinated under one PE — so Fullerton homeowners and GCs don't need to hire and manage separate firms.
ADU & garage conversion
PE-stamped plans for Fullerton garage conversions and new ADU construction. Foundation evaluation included. From $1,200.
Fullerton's 1950s–1970s housing stock often has slab-on-grade garages suitable for conversion. Existing slab thickness and reinforcement are evaluated before design.
Room additions & remodels
Structural engineering for Fullerton additions, second stories, and structural remodels. From $2,500.
Post-war Fullerton homes may have under-reinforced foundations that require supplemental footings when adding second-story loads per CBC §1809.
Load-bearing wall removal
Beam and column design for opening up Fullerton's post-war ranch homes. PE-stamped plans. From $1,200.
Fullerton ranch homes commonly have 2×4 bearing walls at 16" o.c. — beam sizing accounts for the concentrated load path change at removal point.
Inspections & PE letters
PE-stamped structural assessment letters for Fullerton property transactions and insurance. From $400.
Inspection letters for Fullerton properties frequently address foundation settlement in older neighborhoods. PE assessment includes visual and dimensional evaluation.
Commercial & TI
Structural engineering for Fullerton commercial TI projects, restaurant build-outs, and retail modifications.
Downtown Fullerton has active commercial TI activity. Older unreinforced masonry buildings may require seismic evaluation before TI permits.
Seismic retrofit
Foundation bolting and cripple wall bracing for Fullerton's 1950s–1970s residential stock. From $2,500.
Fullerton's post-war homes commonly have raised foundations with cripple walls — the most common residential seismic retrofit scope in the city.
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.