Detached ADU Structural Drafting Set
Complete structural drawings, calculation-document formatting and PE review for a detached, single-story ADU up to 1,200 sq ft — one fixed fee.
Complete structural drafting for your detached ADU — one clearly defined fixed fee.
The client’s independently retained licensed professional supplies design criteria; we draft the foundation, gravity framing, lateral system and structural connections using the project location, architectural drawings and applicable building-code requirements. You receive a permit-ready package without uncertain hourly billing or surprise licensed professionaling charges within the agreed scope.
Send your plans
Upload the architectural set and project location. No payment is required for this review.
Confirm scope
We verify fixed-fee eligibility, deliverables and timing before collecting the deposit.
Engineering
We prepare the calculation documents supplied by the licensed professional, drawings and jurisdiction-specific structural drafting.
Permit support
Receive the final permit package plus plan-check responses within the original scope.
Designed for
- New detached backyard ADUs
- Single-story conventional wood framing
- Slab-on-grade or raised-floor construction
- Regular roof geometry and clear load paths
- Architectural plans ready for drafting support
Custom quote required
- Attached ADUs and garage conversions
- Two-story, hillside or complex geotechnical sites
- Significant retaining walls or irregular systems
- Existing-residence modifications and site visits
- Architectural changes after drafting support begins
Up to three structural response cycles are included when comments relate to our original drafting and agreed scope. Owner-requested changes, revised architecture and newly introduced site conditions are additional services.
Review first
No payment is required to request a scope review.
Price confirmed
Your deliverables and fixed fee are confirmed before work begins.
No surprises
No hourly drafting support charges apply within the agreed scope.
Changes approved
Additional services are quoted for approval before proceeding.