Services in Orange
The City of Orange has a diverse housing stock from historic Old Towne homes to newer construction in Orange Park Acres. Affinity provides PE-stamped drawings tailored to Orange's building department standards. Beyond structural engineering, Affinity delivers complete plan sets with architecture, structural, and MEP coordinated under one PE — so Orange homeowners and GCs don't need to hire and manage separate firms.
ADU & garage conversion
PE-stamped plans for Orange ADU projects including historic district considerations. From $1,200.
Old Towne Orange is a historic district with homes dating to the early 1900s. Structural work on these properties may require preservation-sensitive design approaches and coordination with the city's historic review process.
Room additions & remodels
Structural engineering for additions in Orange's diverse neighborhoods from Old Towne to Orange Park Acres. From $2,500.
Old Towne Orange homes (early 1900s) may require preservation-sensitive structural approaches. El Modena and Orange Park Acres follow standard CBC.
Load-bearing wall removal
Beam sizing and PE-stamped plans for wall removal in Orange homes. From $1,200.
Historic Old Towne homes may have non-standard framing. Material identification and load testing may be required before beam design.
Inspections & PE letters
PE-stamped letters for Orange property transactions and compliance. From $400.
Historic district inspection letters in Old Towne Orange may require coordination with the city's Design Review Board for structural modifications.
Commercial & TI
Structural engineering for City of Orange commercial TI projects including Old Towne historic district.
Old Towne Orange commercial TI may require coordination with historic preservation review. Unreinforced masonry evaluation common.
Seismic retrofit
Foundation bolting, cripple wall bracing, and seismic upgrades for Orange's historic and mid-century homes. From $2,500.
Old Towne Orange homes dating to the early 1900s are high-priority retrofit candidates. Preservation-sensitive retrofit approaches may be required.
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.