Last updated: January 2026 · 9 min read
San Francisco Solar Guide
In San Francisco, a Solar permit is required for any solar energy system installation, regardless of the system size. This guide will help you navigate the specific requirements and process to obtain a Solar permit in the city.
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What Requires a Solar in San Francisco
According to the San Francisco Department of Building Inspection (DBI), a Solar permit is mandatory for any new or modified solar energy system installation. This includes both residential and commercial properties. The permit is required regardless of the system size or whether the project is ground-mounted or roof-mounted. San Francisco has specific requirements around solar system setbacks, equipment specifications, and safety features that must be reviewed and approved by DBI before installation can begin.
What Doesn't Require a Permit
In San Francisco, a Solar permit is not required for minor repairs or maintenance work on an existing solar energy system, as long as the system capacity and layout remain unchanged. Additionally, very small-scale solar projects, such as portable or temporary systems under 120 square feet, may be exempt from the permit requirement. However, homeowners should always check with DBI to confirm if their specific project is eligible for an exemption.
Solar Costs and Fees in San Francisco
The base permit fee for a Solar in San Francisco is a flat rate of $261, according to the DBI's current fee schedule. This covers the basic application processing and review. Additionally, there may be other applicable fees, such as the Building Permit Base fee, which is a tiered rate starting at $182 for projects up to $2,000 in valuation and increasing incrementally for higher-value projects. The total permit fees can vary significantly depending on the scope and complexity of the solar installation. Homeowners and contractors should contact DBI for a detailed cost estimate based on their specific project details.
How Long Does Solar Approval Take
The timeline for obtaining a Solar permit in San Francisco can vary depending on the complexity of the project and the current workload at DBI. According to the department's processing standards, basic solar permit applications are typically reviewed and approved within 10-15 business days. However, more complex projects or those that require additional reviews, such as from the Planning Department, may take longer, potentially up to 4-6 weeks. Expedited review options are available for an additional fee, which can reduce the processing time to 5-7 business days.
Required Documents for San Francisco Solar
To apply for a Solar permit in San Francisco, homeowners or contractors must submit a comprehensive set of documents to DBI. This includes detailed construction plans, equipment specifications, structural calculations, and site plans that comply with the city's building code and solar energy system requirements. Additionally, homeowners must provide proof of ownership, and contractors must submit their license information. All documents must be submitted electronically through the SFDBI Portal in the required file formats.
Step-by-Step Application Process
The application process for a Solar permit in San Francisco involves several steps to ensure the project meets all local requirements. Homeowners or contractors should familiarize themselves with the process and plan accordingly to minimize delays.
- 1
Gather Required Documents
Collect all necessary documents, including construction plans, equipment specifications, and site details, as outlined in the 'Required Documents' section.
- 2
Submit Application Online
Create an account on the SFDBI Portal and submit the permit application electronically, uploading all required documents.
- 3
Pay Permit Fees
After the application is submitted, DBI will provide a fee estimate. Pay the required fees, which can be done online through the SFDBI Portal.
- 4
Await Permit Review
DBI will review the application and documents, and may request additional information or clarification. Respond to any requests promptly.
- 5
Receive Permit Approval
Once the review is complete and all requirements are met, DBI will issue the Solar permit, allowing the project to proceed with construction.
Required Inspections
San Francisco requires multiple inspections for Solar permit projects to ensure compliance with local building codes and safety standards. These typically include a pre-installation inspection, a rough-in inspection during the construction phase, and a final inspection upon completion. Homeowners or contractors must schedule these inspections with DBI and have a qualified professional on-site during the inspections. Passing all required inspections is necessary to receive the final permit approval and begin operating the solar energy system.
Common Solar Permit Mistakes in San Francisco
One of the most common mistakes homeowners make when applying for solar permits in San Francisco is failing to account for the city's complex permit requirements. Many underestimate the time and documentation needed to obtain a permit, leading to delays and additional costs. Another issue is not properly sizing the solar system to the property, resulting in the need for costly revisions and resubmissions. Homeowners also often overlook the requirement for a site circulation review, which can add over $12,000 to the total permit cost. To avoid these pitfalls, San Francisco residents should carefully review the Department of Building Inspection's (DBI) solar permit guidelines and consult with a qualified solar contractor early in the process.
Sample Solar Permit Cost Calculation
For a typical 1,500 square-foot solar installation in San Francisco, the total permit fees would likely be around $4,000. This includes a $833 base permit fee, a $261 solar permit fee, and additional fees for things like the site circulation review ($12,202) and building permit issuance ($2,798 for a project valued at $500,001 to $1,000,000). There may also be an additional fee for street space usage, which can range from $7 to $18 per square foot per month, depending on the project size. Assuming 80 square feet of street space usage for 1 month, that would add another $560 to the total. In this example, the overall cost for the solar permit in San Francisco would be approximately $4,000.
How San Francisco Compares to Other California Cities
Compared to other major California cities, San Francisco's solar permit process can be more complex and costly. For example, in Los Angeles, the base permit fee for a solar project is $431, which is about half of San Francisco's $833 base fee. Los Angeles also has a more streamlined review process, with an estimated timeline of 4-6 weeks, compared to San Francisco's 8-12 weeks. In contrast, San Diego has similar permit fees to San Francisco, but a faster turnaround time of 2-4 weeks. Overall, San Francisco's solar permit requirements tend to be more stringent and expensive than other California cities, which can be a significant barrier for some homeowners looking to go solar.
Recent Solar Permit Changes in San Francisco
In 2024, the San Francisco Department of Building Inspection (DBI) implemented a new online portal for solar permit applications, streamlining the submission process. This digital platform allows homeowners to track the status of their permit and reduce the need for in-person visits to the DBI office. Additionally, the city has updated its solar permit fees to better reflect the cost of processing these applications. The base permit fee has increased from $833 to $916, while the solar-specific permit fee has been reduced from $261 to $228. These changes aim to make the solar permitting process in San Francisco more efficient and affordable for residents. Furthermore, San Francisco is staying up-to-date with the latest updates to the California Building Code, including new Title 24 energy efficiency requirements that will impact solar installations starting in 2025.
Tips for Faster Approval in San Francisco
To streamline the Solar permit process in San Francisco, homeowners and contractors should thoroughly review the city's requirements, submit complete and accurate application materials, and respond promptly to any requests for additional information from DBI. Avoiding common issues, such as incomplete plans or incorrect equipment specifications, can help prevent delays. Additionally, exploring the option of an expedited review, which comes with an additional fee, can significantly reduce the overall timeline for permit approval.
Frequently asked questions about San Francisco solar permits
How much does a Solar cost in San Francisco?
The base permit fee for a Solar in San Francisco is a flat rate of $261, according to the Department of Building Inspection's (DBI) current fee schedule. However, there may be additional fees, such as the Building Permit Base fee, which is a tiered rate starting at $182 for projects up to $2,000 in valuation and increasing incrementally for higher-value projects. The total permit costs can vary significantly depending on the scope and complexity of the solar installation.
How long does it take to get a Solar in San Francisco?
The timeline for obtaining a Solar permit in San Francisco can vary, but according to DBI's processing standards, basic solar permit applications are typically reviewed and approved within 10-15 business days. More complex projects or those requiring additional reviews may take longer, potentially up to 4-6 weeks. Expedited review options are available for an additional fee, which can reduce the processing time to 5-7 business days.
Can I apply for a Solar online in San Francisco?
Yes, the application for a Solar permit in San Francisco must be submitted online through the SFDBI Portal. All required documents, including construction plans, equipment specifications, and site details, must be uploaded electronically to the portal as part of the application process.
Do I need a contractor for a Solar?
In San Francisco, homeowners have the option to either hire a licensed contractor or act as an owner-builder for a Solar project. However, if the homeowner chooses to act as the owner-builder, they must still obtain the necessary permits and comply with all local building code requirements. Hiring a qualified and licensed contractor can help ensure the project is completed correctly and efficiently.
What happens if I build without a permit in San Francisco?
Building without a required permit in San Francisco can result in significant penalties and enforcement action from the Department of Building Inspection. Homeowners may face fines, be required to obtain retroactive permits, or even be ordered to remove unpermitted work. It's crucial to obtain the proper Solar permit before starting any solar energy system installation in the city.
What's the biggest mistake people make with Solar permits in San Francisco?
The biggest mistake homeowners make is failing to account for San Francisco's complex solar permit requirements, leading to delays, additional costs, and the need for costly revisions and resubmissions.
How do San Francisco Solar permit costs compare to other cities?
Solar permit costs in San Francisco tend to be higher than other major California cities, with a base permit fee of $916 compared to $431 in Los Angeles. San Francisco also has additional fees, like the $12,202 site circulation review, that can significantly increase the overall cost.
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Related Permits in San Francisco
San Francisco Building Department Contact
Department of Building Inspection
49 South Van Ness Ave, San Francisco, CA 94103