Permits & General Guidance for Residential Projects in Southern California
- Jan 21
- 2 min read

Getting building permits for your home project in Southern California can feel like the biggest hurdle — whether it's an ADU, garage conversion, room addition, remodel, new patio, or full new construction. Counties like Riverside, San Bernardino, Orange, and Los Angeles have their own rules, timelines, and fees, and missing something (like Title 24 energy compliance or structural details) can add months of delays.
At Michael's Drafting, we specialize in permits and general guidance to make the process smooth and fast. Here's what you need to know about building permits in Southern California, plus how we help every step of the way.
Why Permits Matter in Southern California
Safety & Compliance: Permits ensure your project meets California Residential Code (CRC), Title 24 energy standards, seismic rules, fire safety, and local zoning.
Legal Requirement: Work without permits can lead to stop-work orders, fines, or issues when selling your home.
Insurance & Value: Permitted work protects your insurance coverage and adds resale value.
Common Projects: ADUs, garage conversions, additions, remodels, patios, new construction — all need permits if they add space or modify structure.
Michael's Drafting handles the guidance and plan preparation to get you approved quickly.
The General Permit Process in Southern California
Pre-Application Check (1–2 weeks) Verify zoning, setbacks, lot coverage, and eligibility. We review your property and provide guidance early.
Plan Preparation (2–6 weeks) Create permit-ready drawings: site plan, floor plans, elevations, sections, MEP, structural calculations, Title 24 report. Michael's Drafting specializes in accurate sets that pass first review.
Submission (Day 1) Submit online or in-person to county building department. Fees $5,000–$20,000 depending on project size and location.
Plan Review & Corrections (60–120 days) County reviewers check for code compliance. Common comments: Title 24 missing, garage fire separation, setbacks, dryer vents. Michael's Drafting handles revisions fast to keep things moving.
Approval & Permit Issuance (1–2 weeks) Pay final fees, get stamped plans and permit.
Inspections During Construction Rough framing, MEP, insulation, final — we can coordinate or advise.
Final Occupancy Certificate issued — project complete.
Timelines by County (2026 average):
San Bernardino: 50–90 days (fastest).
Riverside: 60–100 days.
Orange: 70–110 days.
Los Angeles: 80–140 days (more comments).
Costs for Permits in Southern California
Plan check & permit fees: $5,000–$20,000.
Title 24 report: $1,000–$3,000.
Structural engineering: $5,000–$15,000 (if needed).
Michael's Drafting plans: $3,500+ (includes guidance and revisions).
How Michael's Drafting Provides Permits & General Guidance
Full Support: We prepare permit-ready plans, submit packages, handle corrections, and advise on Title 24, structural, code compliance.
Local Expertise: We know county-specific comments in Riverside, San Bernardino, Orange, LA — reducing resubmissions.
Unlimited Revisions: Included until approved.
Free Consultation: We review your project, explain the process, estimate timelines/costs, and guide next steps.
Whether it's an ADU, remodel, addition, or new build, good guidance makes permitting less stressful.
Ready to get your permit started? Contact Michael's Drafting for expert permits and general guidance in Southern California. Free consultation – call 909-486-3789 or email info@michaelsdrafting.com today.
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