Owner-Builder Permits in San Francisco: What You Can (and Can't) Do

California law allows you to construct, alter, or repair improvements to your own home without a contractor's license — provided the work is on property you own and intend to occupy. DBI's permit application has a specific checkbox and declaration for owner-builders.

The key word is occupy. The owner-builder exemption is intended for homeowners improving their own home, not for speculative development or rental properties.

The Owner-Builder Declaration

When you apply for a DBI permit as an owner-builder, you sign a legal declaration (the Owner-Builder Disclosure Statement) that states:

1. You understand you're assuming all risks as your own contractor
2. You agree to comply with all applicable laws and codes
3. You're aware that licensed contractors typically carry workers' compensation insurance (you'll need your own if you hire workers)
4. You understand DBI may hold your permit if you sell within one year of completion

This isn't a bureaucratic formality — it's a legally binding acknowledgment of significant personal liability.

What You Can Do as an Owner-Builder in San Francisco

As an owner-builder, you can:

• Pull the building (alteration) permit in your own name
• Self-perform carpentry, framing, and finish work that doesn't require a specialty license
• Hire subcontractors for licensed trades (plumbing, electrical) — the subcontractors pull their own trade permits under their licenses
• Act as project manager — coordinate the project, schedule inspections, manage the job site

This is actually the most common owner-builder model: the homeowner pulls the general building permit but hires licensed plumbing and electrical subs who pull their own trade permits.

What You Cannot Do as an Owner-Builder in San Francisco

Critically, the owner-builder exemption does not exempt you from requirements for licensed specialty trades. In California, the following trades require a contractor's license regardless of owner-builder status:

• Plumbing (C-36 license): You cannot legally install or modify supply, drain, or gas lines yourself unless you hold a plumbing license. You must hire a licensed plumber.
• Electrical (C-10 license): Same — you must hire a licensed electrician. In San Francisco, SFFD handles electrical permits.
• HVAC (C-20 license): Ductwork, furnaces, and heat pumps require a licensed mechanical contractor.
• Roofing (C-39 license): New roof installations and most significant repairs require a licensed roofer.
• Structural pest control: Any work related to termite damage requires a licensed pest control operator.

The practical implication: If you're doing a bathroom remodel, you can pull the DBI alteration permit yourself, but you still need a licensed plumber (who pulls a separate plumbing permit) and a licensed electrician (who pulls the SFFD electrical permit).

The One-Year Resale Rule

California Business and Professions Code §7044(b)(2) creates a significant restriction on owner-builders:

If you build or improve a property using the owner-builder exemption and then sell the property within one year of completion, there is a legal presumption that the work was done for sale — not personal use — which voids the exemption.

This matters in San Francisco's hot real estate market. Homeowners who do a kitchen remodel and then list the house within 12 months can face issues with permit validity and potential liability.

The rule is rebuttable — you can provide evidence of genuine intent to occupy — but it's a complication most homeowners want to avoid.

Owner-Builder Requirements for Inspections

Inspections work the same as with a licensed contractor: DBI requires inspections at the same stages regardless of who pulled the permit. As an owner-builder, you (or whoever is on-site during the inspection) are responsible for:

• Scheduling inspections at the right project stage
• Ensuring work is ready before the inspector arrives
• Correcting any deficiencies and scheduling re-inspections

Failed inspections cost $207 per re-inspection. Experienced contractors know how to stage work to pass on the first try; owner-builders often need an extra inspection or two.

When Owner-Builder Makes Sense

The owner-builder path is genuinely a good choice for:

Experienced DIYers: If you have real construction experience — you've framed walls before, you understand building sequences — and are managing licensed subcontractors, owner-builder can save 15–25% on GC markup.

Simple projects with no licensed trade work: A deck, fence, or room partition that doesn't touch plumbing, electrical, or gas can be entirely self-performed.

Long timelines: If you're not in a rush and can work on weekends, owner-builder projects have much more flexibility than contractor-managed jobs.

When Owner-Builder Doesn't Make Sense

Complex structural work: Wall removal, beam installation, or foundation work are high-consequence activities. Without construction experience, errors can be costly or dangerous — and inspectors will scrutinize the work carefully.

Large projects: Managing multiple subcontractors, coordinating inspections, handling material deliveries, and keeping the project on schedule is a full-time job on larger remodels. Most people underestimate this.

Properties with plans to sell: The one-year rule creates real legal exposure. If there's any chance you'll sell within a year, use a licensed general contractor.

Historic or complex regulatory environments: Historic districts, hillside properties, properties with existing code violations — these require someone who knows San Francisco's bureaucratic landscape well.

Cost Comparison: Owner-Builder vs. Licensed GC

For a $50,000 kitchen remodel:

Cost Category	Licensed GC	Owner-Builder
GC Markup (15–25%)	$7,500–$12,500	$0
Permit Pulling (included in GC or your time)	Included	Your time
Subcontractor Coordination	Included	Your time
Risk of Failed Inspections	Lower	Higher
Potential Savings	—	$7,500–$12,500

The savings are real — but so is the time investment. Budget 10–20 hours per week on a major remodel if you're the de facto project manager.

How to Pull an Owner-Builder Permit in San Francisco

1. Prepare your drawings: DBI requires plan-level drawings showing existing conditions and proposed work. For simple projects, basic floor plans and elevations suffice. For structural work, you need stamped engineering drawings.

2. Complete the DBI permit application: Available at San Francisco DBI (49 South Van Ness, counter 3) or online at the DBI e-Permit portal.

3. Sign the Owner-Builder Declaration: This is a separate form from the main application.

4. Submit: Over-the-counter or online, depending on project type.

5. Post permit on-site: The permit card must be visible from the street before any work begins.

6. Schedule inspections: Use the San Francisco DBI inspection scheduling system (online or phone) to request each required inspection.