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Who They're For and What They Solve
Structural design is the engineering process that determines how a building holds itself up, and holds up under load. It covers the sizing of foundations, beams, columns, and walls, and produces the stamped drawings a permit office requires before any residential construction can legally begin.
Not every builder needs a full structural engineering firm. Homeowners planning a custom build, an ADU, or an alternative dwelling type need a licensed professional who understands residential construction specifically, someone who can translate an architectural concept into a buildable, code-compliant structural plan.
Without proper structural design, permit applications get rejected, construction gets delayed, and costly rework becomes likely. A complete structural plan set, produced by a licensed professional and tailored to your specific build type, is the document that moves your project from concept to approved construction.
Is It Time?
Most builders know they need structural drawings but many do not realize how early in the process those drawings need to be in hand.
Our Services
We handle the full range of residential structural design, from initial load calculations through the final stamped drawing package ready for AHJ submission.
We design slab-on-grade, crawlspace, and basement foundation systems sized for your soil conditions, load path, and local code requirements. Every foundation design accounts for the full dead and live load of the structure above it.
Wall framing, beam sizing, header calculations, and floor system design, we engineer every element so loads transfer cleanly from roof to foundation. This is where structural failures most often originate when plans are under-engineered.
Shear wall layout, hold-down hardware schedules, and diaphragm design resist wind and seismic forces. LFRS documentation is required for permit in most jurisdictions and is one of the most commonly missing elements in rejected applications.
We produce a complete, permit-ready structural drawing package, general notes, connection details, and engineer-of-record stamp, formatted for AHJ submission. This is the deliverable your permit office needs to approve your build.
Not sure which of these your project requires? We assess your scope first and recommend only what your specific build needs no upsells.
Why Homeowners Choose Mr. Local Services
Our structural design work is performed by a licensed Professional Engineer with 25 years of residential-specific experience. PE-stamped drawings from Mr. Local Services are accepted by AHJs across jurisdictions.
If the AHJ requests revisions to our structural drawings, we handle them at no additional charge. That guarantee is written into every project agreement before work begins.
We deliver complete structural plan sets in 10 to 15 business days from scope confirmation. Builders get permit-ready drawings without waiting months for an overbooked engineering firm.
Every project starts with a fixed-fee quote based on your scope. You know the full cost before we begin. No hourly billing, no scope creep charges, no surprises at invoice.
How It Works
Call us at 951-458-6466 or submit your project details online. We review your architectural drawings, site conditions, and build type, then provide a fixed-fee quote within one business day.
We complete all structural calculations, load paths, beam sizing, foundation design, and LFRS, based on your approved scope. This phase typically takes 7 to 10 business days.
We produce your complete structural plan set, apply the PE stamp, and deliver the full package in digital format ready for AHJ submission.
If the permit office requests any changes to our drawings, we respond directly and revise at no additional cost, covered under our permit-ready guarantee.
Pricing
Structural design pricing depends on project scope, build type, and plan complexity. Here is what drives cost:
ADU structural design
$1,800–$3,500
Single-story custom home
$3,000–$6,000
Two-story custom home
$5,500–$10,000+
THOW or prefab structural certification
$1,200–$2,800
All projects are quoted at a fixed fee after scope review. Call 951-458-6466 to get your project-specific quote.
A complete plan set includes foundation drawings, framing plans, beam and header schedules, LFRS documentation, connection details, general structural notes, and the PE stamp required for permit submission.
Most residential projects are completed in 10 to 15 business days from scope confirmation. Complex two-story or hillside projects may require up to 20 business days.
Yes. Most jurisdictions require stamped structural drawings for any new ADU construction, whether detached or attached. If your project is an accessory dwelling unit, our ADU construction services, the full build process, from site planning through final inspection.
Our permit-ready guarantee covers all AHJ-requested revisions at no additional cost. We respond directly to the plan checker and deliver corrected drawings without additional billing.
Yes. We have direct experience with THOWs, prefab structures, and park model homes build types that require specific structural approaches most generalist engineers are not familiar with.
Every project is quoted at a fixed fee after we review your scope. You receive a written quote before work begins. We do not bill hourly. Call 951-458-6466 to start your scope review.
Architectural drawings or a detailed site plan, your property's soil report if available, and your target permit submission date. We work with what you have and identify any gaps during the scope review.
Your build cannot move forward without stamped structural drawings. We deliver permit-ready plan sets in 10 to 15 business days, backed by our revision guarantee.
