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Antioch building permits

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Antioch, California — as published 2026-09-20.

Verified 2026-09-20 · Source

Codes adopted

THE CITY STATES THE EDITION AND THE DATE IT BEGINS ENFORCING IT: "Effective January 1, 2026, the City will enforce the California 2025 Building Codes." Read on 2026-09-20 that date has passed, so the 2025 codes are the ones in force.THE DIVISION'S OWN DESCRIPTION OF ITS REMIT: "The Building Services Division is responsible for administering state and local building construction regulations", including "the evaluation of construction documents for compliance with building codes, the issuance of building permits, and inspection for construction compliance."THE ADOPTING ORDINANCE WAS NOT READ FOR THIS RECORD, so no Antioch ordinance number or code edition list is asserted beyond the city's own statement above. The Zoning Ordinance is published through American Legal Publishing.Health & Safety Code 18938(b) provides that building standards in the California Building Standards Code "shall apply to all occupancies throughout the state and shall become effective 180 days after publication."

Permit types & fees

Building Permit

Verified

Antioch is the clearest fee explainer in this corpus: it states in its own words which fees are valuation-based and which are square-footage-based, and why. Its inspection rules are equally blunt - miss a required item and the inspection fails with a re-inspection fee.

Verified 2026-09-20 · Source

Requirements

APPLICATIONS AND INSPECTIONS BOTH RUN THROUGH CIVIC ACCESS, the city's Tyler-hosted self-service portal, with a Building Permit Application Form published as a PDF alongside residential and commercial permit checklists.
DEFERRED SUBMITTALS NEED PRIOR APPROVAL AND CANNOT BE INSTALLED EARLY. The city explains them: portions of the design "intentionally omitted from the initial building permit plan set and submitted for review at a later time (typically because they require specialized engineering or contractor design)". Under "the California Building Code (CBC, Section 107.3.4.1), deferred submittals must be identified on the approved construction documents and receive prior approval from the building official before being deferred."
AND THE DESIGN PROFESSIONAL HAS TO SIGN THEM OFF FIRST: "The registered design professional is required to review these deferred documents and confirm that they conform to the overall project design before forwarding them to the building department for approval (such items cannot be installed until they are formally approved)." Common examples given: "truss calculations, photovoltaic solar systems, fire protection systems, and prefabricated structural components."
IMPACT FEE DEFERRAL IS NOT AUTOMATIC: "Projects must have a completed Deferred Development Impact Fee Checklist on file with all required documents to qualify for fee deferral."
TWO OUTSIDE APPROVALS ARE NAMED FOR COMMERCIAL WORK: "All commercial projects need to be submitted to the Fire District for plan review and approval", and "All commercial projects serving food need an Environmental Health inspection and approval."

Required documents

Optional
Optional
Optional
Optional

Fee schedule

Fee type	Amount	Notes
Building permit and plan review fees	Based on the valuation of the proposed construction.	"Building permit and plan review fees are typically based on the valuation of the proposed construction project, which includes the estimated cost of labor and materials. Show full citationHide "Building permit and plan review fees are typically based on the valuation of the proposed construction project, which includes the estimated cost of labor and materials. Valuation-based pricing is commonly used for new construction, multi-family projects, structural alterations, additions, tenant improvements, and major renovation projects." The city adds a floor: "To ensure consistency, the City may establish a minimum project valuation using recognized construction cost data and industry standards."
Impact fees and other surcharges	Based on square footage, not valuation.	"Certain development-related fees, including impact fees and other surcharges, are calculated based on square footage. Show full citationHide "Certain development-related fees, including impact fees and other surcharges, are calculated based on square footage. Under this method, the total net new finished floor area of a project is multiplied by an established per-square-foot rate. Square footage pricing is commonly used for Development Impact Fees (DIF), inclusionary housing fees, utility-related fees, and other charges associated with the increased demand a project may place on public infrastructure and services."
Residential sub-trade permit combination (plumbing, mechanical, electrical, insulation)	A minimum of $148.00 per sub-trade times four, or $0.18 per square foot of residential building area per sub-trade times four, whichever is greater.	The city's own wording, citing "Building Fees, Antioch Master Fee Schedule, page 7". Note the structure: a per-trade floor and a per-square-foot rate, with the greater of the two applying, then multiplied by four trades.
Accessibility Fee (non-residential and multi-family)	2% of the building permit fee.	"Accessibility Fee (Non-res & multi-family) applies to all commercial and multi-family residential building permits. Show full citationHide "Accessibility Fee (Non-res & multi-family) applies to all commercial and multi-family residential building permits. This is a percentage of a valuation-based fee and is calculated based upon 2% of the building permit fee". Antioch labels its own fee type precisely - a percentage of another fee rather than a fee with its own basis. Cited to Master Fee Schedule page 8.
Backflow device	$176.00.	Charged for a residential water service with a fire suppression system, and per fire line - "Cost of the backflow device. Master Fee $176.00. Antioch Master Fee Schedule, page 12."
Which fees can be deferred, and which cannot	City fees yes; pass-through fees no.	Eligible for deferral: Community Development Administration, General Administration, Public Works, Police, and Parks and Recreation. Show full citationHide Eligible for deferral: Community Development Administration, General Administration, Public Works, Police, and Parks and Recreation. NOT eligible, because they are pass-through: Antioch Unified School District, Contra Costa Water District and Delta Diablo. The deadlines differ too - "All City impact fees and Delta Diablo fees must be paid prior to issuance of the first Certificate of Occupancy", "AUSD school fees must be paid prior to building permit issuance", and "CCWD fees must be paid prior to water meter installation."

Sources & verification

Verified against official sources. Last reviewed 2026-09-20.

City of Antioch Community & Economic Development Department, Building Division — official building department

Fee schedules

City of Antioch Building Division (the two fee methods stated explicitly, named fee examples, the deferred submittal rule, the SB 937 impact fee deferral and the SB 330 standards freeze, plus the division's hours and address)

Applications & forms

Antioch Building Permit Requirements (plan submittal requirements and the residential and commercial checklists)

Codes & ordinances

Department & other records

Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Antioch building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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