Digital permit application gateway
Start with the issuing authority’s own submission lane. A complete application package, accurate valuation, and accessible inspection path are the fastest route through statutory plan review.
Recommended first click
Use the official digital gateway to submit plans, monitor review comments, pay required charges, and request inspections when the permit is issued. If the link is unavailable, use the agency website or phone number on the administrative profile to confirm the current lane.
Typical review lane
Quick online maintenance and minor-improvement permits are issued as quickly as the applicant completes the online application; larger projects requiring plans up front are estimated by the county at 6-8 weeks, depending on collaboration, completeness, and project complexity.
Treat this as a planning signal, not a guaranteed approval date. Completeness, corrections, resubmittals, and agency workload control the actual clock.
Verify the parcel is inside this agency’s service area and note whether a city, state, fire marshal, septic authority, or utility district also has approval authority.
Prepare legible plans, site information, project valuation, ownership authorization, contractor information, and any energy, floodplain, zoning, or utility documentation the issuing office requires.
Keep the permit number, approved plan set, correction comments, fee receipts, and inspection results together. Those records establish the compliance trail for the next trade.
Application documents
Before submission, call (415) 473-6550 (Building and Safety); (415) 473-6560 (24-hour inspection line) if the project involves a change of occupancy, structural alteration, accessory structure, demolition, or work near a regulated environmental feature.
Source trail
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Marin County Community Development Agency, Building and Safety Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact (415) 473-6550 (Building and Safety); (415) 473-6560 (24-hour inspection line).
Quick online maintenance and minor-improvement permits are issued as quickly as the applicant completes the online application; larger projects requiring plans up front are estimated by the county at 6-8 weeks, depending on collaboration, completeness, and project complexity.
Release all permit holds first, then call the automated 24-hour line at (415) 473-6560 or text (877) 410-7201 with the permit number, project address, and three-digit inspection code. Permits beginning with B can also be scheduled through the online portal. The inspector calls or texts between 8:00 and 9:00 a.m. with a two-hour window; have the permit, approved plans, and required documents onsite. Other required fire, Public Works, Planning, or Environmental Health inspections must be scheduled separately.
Marin County adopted the 2025 California Building Standards Code effective January 1, 2026, with local Title 19 amendments. The current cycle includes the 2025 California Building/Residential, Mechanical, Plumbing, Electrical, Energy, Existing Building, Green Building, Fire, and Wildland-Urban Interface codes, plus Marin-specific wildfire, seismic, steep-terrain, water, and green-building requirements. Marin County lists exemptions for qualifying one-story detached non-habitable sheds, playhouses, and similar accessory structures up to 120 square feet; rural tool sheds, workshops, or horse stalls up to 300 square feet on parcels of at least one acre; qualifying playground equipment up to 15 feet high; above-ground pools under 24 inches deep and 5,000 gallons; fences up to 7 feet (with Planning review still required above 6 feet in many cases); sidewalks and driveways meeting height/accessibility limits; qualifying agricultural shade-cloth structures; retaining walls up to 4 feet without surcharge or heavy loads; grade-supported tanks up to 5,000 gallons with a 2:1 height-to-width ratio; painting, papering, tiling, carpeting, cabinets, countertops, moveable fixtures and low-profile partitions; and qualifying wall-supported awnings. Zoning, Planning, and trade requirements can still apply to exempt work.
What makes an application complete
Before you click submit, make sure the drawings agree with the site plan, project description, valuation, ownership authorization, and contractor information. If the work changes structure, occupancy, drainage, fire protection, energy performance, or utility demand, describe that scope plainly. Ambiguous narratives create correction cycles and delay the field schedule.
Save the confirmation number, payment receipt, uploaded plan set, and every correction comment. Those records are the backbone of a defensible compliance file when multiple trades or agencies share responsibility.
Submission quality check
Site: address, parcel, access, setbacks, and existing conditions are consistent.
Scope: structural, mechanical, plumbing, electrical, fire, and energy work is identified.
Closeout: inspection contacts and the final approval path are understood before work begins.