Permit Application in San Francisco, CA
Applying for an ADU permit in San Francisco means navigating the city’s notoriously strict planning and building codes, and the process typically takes three to six months from first filing to Permit Issued depending on your neighborhood and scope. Sutton ADU San Francisco handles the entire permit application for you: we assemble the drawings, complete every city form, track the review through the Department of Building Inspection (DBI) and SF Planning, and respond to plan check comments until your permit is in hand. If you’re considering a detached ADU, garage conversion, or room addition, call us at (831) 272-7212 and we’ll tell you exactly what your permit path looks like before you spend a dime.
Most homeowners we meet don’t need help designing an ADU as much as they need help getting the city to approve it. That’s where our ADU Design & Permitting in San Francisco work starts: with a permit application that’s complete, code-compliant, and submitted the right way the first time. A sloppy filing can add months to your timeline. We file clean.
When You Need Permit Application
Not every project requires a separate permit application service, but if you’re planning any of the following, you’ll want a team that knows the DBI intake desk by first name:
- You’re converting a garage into a dwelling unit. San Francisco treats garage conversions as change-of-use permits, which trigger additional review for parking, ventilation, and fire separation. Get the application wrong and you’ll spend weeks answering plan check comments that should never have been raised.
- You’re building a detached ADU in a rear yard. Rear-yard setbacks, lot coverage limits, and neighbor notification all come into play. A correctly prepared application anticipates these instead of reacting to them.
- Your property is in a historic district or has landmark status. The Sunset, the Richmond, Telegraph Hill, and much of Noe Valley are riddled with historic overlays. One missed CEQA exemption form can stall your permit indefinitely.
- You bought a prefab or modular ADU and now need site permits. We work regularly with Boxabl and Plant Prefab units, and we know which prefab submittals SF Planning accepts and which ones send reviewers reaching for their red pens.
- Your architect or designer handed you drawings but not a permit. Plans are only half the job. Someone still has to translate those drawings into DBI forms, fee schedules, and neighborhood notification requirements, and that’s the work most designers don’t do.
Our Permit Application Process
Here’s how Sutton ADU San Francisco moves your project from signed design to issued permit. Every step is documented, and you’ll always know where your application sits in the city’s queue.
- Site assessment and feasibility check. We pull your property’s zoning, review the San Francisco Planning Code, and identify any overlays, setbacks (the required gap between your new structure and the property line), or special district rules before we draw a single line. This catches fatal flaws early, before you’ve paid for full drawings.
- Drawings and documentation package. We produce the full permit set: site plan, floor plans, elevations, structural details, Title 24 energy calculations, and the DBI’s specific forms. If you’re working with a Tuff Shed conversion or a James Hardie cladding system, we incorporate those product specs into the submittal so reviewers can verify compliance without kicking the application back.
- Application filing with DBI and SF Planning. We submit your package electronically through the city’s permit portal, pay the intake fees, and obtain your plan check number. You get a copy of the filed application within 24 hours, and your written price is already locked before filing, so there’s no “oh, the city charged extra” surprise later.
- Plan check and comment resolution. This is where most applications die. A DBI plan checker or SF Planning reviewer will issue comments, sometimes dozens. We respond to every comment, revise drawings as needed, and resubmit until the plan check clears. Because we file clean the first time, our comment rounds tend to be short.
- Fee payment and permit issuance. Once approvals are granted, we handle final fee calculations, confirm the permit is ready for pickup, and hand you the issued permit with a clear summary of the approved scope and any conditions attached to it.
Permit Application Pricing in San Francisco
Permit application services in San Francisco typically run between $4,000 and $11,000 for a complete package, depending on project size, number of plan check rounds required, and whether your property falls into a historic review zone or triggers discretionary review through SF Planning. The city’s own filing fees, DBI surcharges, and neighborhood notification costs are additional and usually add another $1,500 to $4,000 depending on square footage and scope. Here’s what affects the price most:
- Historic district or landmark status. If your property sits in a designated historic district or has Article 10 or Article 11 protections, your application requires additional documentation and review time. Expect this to add $1,500 to $3,000.
- Garage conversion vs. new detached unit. Garage conversions are change-of-use applications with extra parking and life-safety review. They typically cost more in service fees than a straightforward new detached ADU filing.
- Plan check comment rounds. The first plan check is included in our service. Each additional round of review, if it gets that far, adds time and cost. We can’t control how many comments a city reviewer issues, but our experience is that a well-prepared application from the start keeps rounds to a minimum, which keeps your cost at the lower end of the range.
- Structural complexity. A unit on a sloped lot in Glen Park or the Excelsior needs more structural engineering than a flat-lot build in the Sunset. That engineering work is priced separately and feeds directly into your permit application package.
Every Sutton ADU San Francisco permit application comes with a written price delivered before we start any work, and that price doesn’t change when the city raises a fee or your plan checker asks for an extra sheet. If you want an exact number for your property, call (831) 272-7212. We’ll walk your address through the planning code and give you a real quote, free.
Why San Francisco Homeowners Choose Sutton for Permit Application
Builders all over this city promise a smooth permit process. We do something most of them don’t: we tell you exactly who is coming to your property, before they come. Every Sutton crew member is background-checked and identity-verified under our Threshold Verified standard, and we send you their name and photo before the first visit. They arrive uniformed and show a photo ID badge at your door, every time. If you’re home alone, or home with young kids, or simply someone who’d rather not open the door to a stranger holding a clipboard, that standard matters.
Then there’s the 365-Day Done Right Promise. It’s a written guarantee covering defects in workmanship for one full calendar year from project completion. If something in your permitted work isn’t right within that year, we make it right, and a second visit is on us. Not a prorated clause. Not a “we’ll see what we can do.” A written promise, stamped on your project paperwork, signed by us.
Sutton, by the way, is an old English name for a south farm. Adding a second home to your lot is exactly that kind of settled, rooted decision, and we treat your permit application as the first structural piece of it.
What Makes San Francisco Permits Different
If you’ve ever pulled a permit in, say, Sacramento or San Jose, you should know that San Francisco does things its own way. The city has its own building code, built on the California Building Code but with local amendments that affect everything from rear-yard coverage to window glazing to stair width. The DBI handles building permits, but SF Planning controls zoning and neighborhood character questions, and when those two agencies disagree, your application stalls until someone resolves it. That’s not a problem you solve over the phone.
We’ve filed permits in nearly every San Francisco neighborhood: Glen Park, the Inner Sunset, the Mission, the Outer Richmond, Noe Valley, Bernal Heights, the Bayview, and the Portola among others. Specific local conditions change the paperwork. In some western neighborhoods, the Coastal Zone rules add a CEQA review layer. In areas with strong neighborhood associations, like Telegraph Hill or Cow Hollow, discretionary review can add public hearings that require a more detailed application narrative. A good permit application anticipates the local politics, not just the building code.
How Long Does Permit Application Take in San Francisco?
Plan for three to six months from filing to issued permit, and be suspicious of anyone who promises faster. A rooftop deck or minor interior remodel can clear DBI in three to five weeks, but an ADU or garage conversion touches SF Planning, and SF Planning is a slower machine with its own queue. Historic properties can add another six to twelve weeks for preservation review. We track every application through the city’s online permit portal and send you weekly status updates, so you’ll never wonder where things stand.
Prefab and Modular ADUs: Permits Still Apply
Buying a prefab unit doesn’t mean you skip the permit line. A Boxabl or Plant Prefab unit still needs site permits, foundation permits, and utility connections, and the city wants to see the product’s engineering before it approves your site work. We’ve prepared permit applications for prefab units in San Francisco and we know which product submittals move through DBI review cleanly and which trigger additional questions. If you’re weighing a prefab purchase against a site-built unit, call us before you sign anything. We’ll help you understand which product line fits your lot, your budget, and your permit timeline, so you don’t buy a unit you can’t get approved.
FAQs – Permit Application
How much does a permit application cost in San Francisco?
A complete ADU permit application package in San Francisco typically costs $4,000 to $11,000 in professional service fees, plus $1,500 to $4,000 in city filing and review fees, depending on project size and whether your property triggers historic or discretionary review. Call (831) 272-7212 for an exact quote, free. We’ll give you a written price before any work begins.
Can you file my permit application the same week I sign?
In most cases, yes, if your design is already finalized and we’re starting from approved drawings. If we’re doing the design and permitting together, the full package usually takes three to six weeks to prepare before we file. Call (831) 272-7212 and we’ll give you a realistic timeline for your specific property.
What happens if the city rejects my application?
Rejections are almost always because something is missing or incomplete, not because your project is fundamentally unapprovable. We review every application against the DBI’s current submittal checklist before filing, so a flat rejection is rare, and if the city does push back, we fix the issue and resubmit at no additional service cost within the agreed scope.
Do I need a permit for a Tuff Shed conversion in San Francisco?
Yes, any conversion of a prefabricated structure into living space requires a building permit, and in San Francisco it also requires SF Planning review if the structure becomes a dwelling unit. We handle Tuff Shed conversion permit applications, including the structural review of the base unit and the change-of-use paperwork. Call (831) 272-7212 and we’ll explain the exact path for your yard.
Is it cheaper to skip the permit and build anyway?
It’s far more expensive. Unpermitted ADU work in San Francisco is subject to stop-work orders, fines that start around $820 and can climb much higher, and when you eventually sell or refinance, the title company will flag the unpermitted square footage and your deal stalls. The permit fee is a fraction of the cost of legalizing work after the fact. Call (831) 272-7212 and we’ll help you do it right the first time.
Written by Miles Hartwell, Owner at Sutton ADU San Francisco, serving San Francisco.
