Services in Brea
Brea offers a mix of established neighborhoods and newer developments. Affinity provides PE-stamped drawings tailored to Brea's building department standards. Beyond structural engineering, Affinity delivers complete plan sets with architecture, structural, and MEP coordinated under one PE — so Brea homeowners and GCs don't need to hire and manage separate firms.
ADU & garage conversion
PE-stamped ADU plans for Brea properties including garage conversions and new construction. From $1,200.
Brea straddles OC and LA County lines — properties near Carbon Canyon may fall under County jurisdiction. Verify jurisdiction before submission.
Room additions & remodels
Structural design for additions and second stories in Brea's established neighborhoods. From $2,500.
Brea's hillside-adjacent neighborhoods may require slope evaluation for additions. Standard flatland additions follow typical CBC structural requirements.
Load-bearing wall removal
Beam sizing and PE-stamped plans for open-concept remodels in Brea homes. From $1,200.
Brea homes are predominantly wood-frame construction. Standard LVL beam sizing applies for most residential wall removal spans.
Inspections & PE letters
PE-stamped structural letters for Brea property transactions and compliance. From $400.
Brea inspection letters are typically requested during real estate transactions. Standard PE assessment covers foundation, framing, and visible structural elements.
Commercial & TI
Structural engineering for Brea commercial projects and tenant improvements.
Brea's commercial activity centers around Brea Mall and Imperial Highway corridor. Standard CBC TI requirements apply.
Seismic retrofit
Foundation bolting and shear wall upgrades for older Brea homes. From $2,500.
Brea homes built before 1980 may have unbolted foundations. Standard residential retrofit per CBC Appendix Chapter A3.
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.