CWUIC · California Wildland-Urban Interface Code
Permit validity, expiration, refusal or revocation and temporary certificates of occupancy/completion
Permits under the California Wildland‑Urban Interface Code must be started within 12 months (or they expire); written extensions up to 180 days are allowed. Permits and certificates do not excuse violations and the code official can refuse, suspend or revoke them for specified reasons. Temporary certificates may be issued for safely occupiable portions and have a time limit set by the code official (see §§ 105.7, 105.8, 105.10, 110.3, 110.4) .
Last reviewed: July 6, 2026
What the code requires — plain English
The California Wildland‑Urban Interface Code (CWUIC) makes three basic rules clear: a permit or plan approval does not authorize violating the code (§ 105.7) and permits expire if work does not begin or is abandoned for specified time periods (§ 105.8) — extensions are allowed in writing for limited periods. The code authorizes the code official to suspend or revoke permits for specific reasons listed in the code (§ 105.10). The code official may also issue a temporary certificate of occupancy for safely occupiable portions and must set its valid time period; certificates may be suspended or revoked for similar reasons (§ 110.3, § 110.4) .
The single most important rule: a permit or certificate does not allow you to violate the CWUIC — if the work or documents don't conform, the permit or certificate can be refused, limited, suspended, or revoked. § 105.7, § 105.10, § 110.4
Requirements in detail
1) Validity of a permit
- The issuance or approval of a permit or plans is not a waiver of code requirements; a permit that would authorize a violation is not valid (§ 105.7). This means the code official may still require corrections and may prevent occupancy or use if violations exist .
- Bold terms: permit, valid, code official, § 105.7.
2) Expiration and extensions (timing rules)
Key timing rules you must track:
| Decision dimension | Value / Rule | Code Reference |
|---|---|---|
| Time to commence work after permit issuance | 12 months (on or after Jan 1, 2019) | § 105.8 |
| Suspension / abandonment threshold after commencement | 12 months (work suspended/abandoned for 12 months invalidates permit) | § 105.8 |
| Extension length (per written grant) | Up to 180 days per extension | § 105.8 |
| Number of extensions allowed | One or more (code official authorized to grant one or more) — must be requested in writing with justifiable cause | § 105.8 |
| Application abandonment (before permit issued) | Application deemed abandoned after 180 days unless pursued; code official may extend | § 105.4.2 |
Notes: The 12‑month standard (for permits issued on/after Jan 1, 2019) is the controlling time frame; older code editions used 180 days in some contexts, but CWUIC specifies the 12‑month rule and authorizes written extensions of up to 180 days each, with justification required (§ 105.8) .
3) Grounds and process for refusal, suspension or revocation of permits
The code official may refuse to issue a permit when application or construction documents do not conform; refusal must be in writing with stated reasons (§ 105.6.1) .
Permits may be suspended or revoked where the code official determines any of these apply (§ 105.10) :
- The permit is being used by a person other than the permittee.
- The permit is being used at a different location than issued for.
- Conditions or limitations set in the permit have been violated.
- The permittee fails/refuses/neglects to comply with an order or notice served under the code within the time provided.
- False statements or misrepresentations of material fact in the application or plans.
- The permit was issued in error or in violation of any ordinance, regulation or code provision.
The code official must document suspension/revocation in writing; suspension/revocation is authorized where the permit is issued on incorrect information or in violation of other ordinances (§ 105.10) .
4) Temporary certificates of occupancy/completion
- The code official is authorized to issue a temporary certificate of occupancy for portions of the work that can be occupied safely before entire project completion; the code official must set the valid time period for that temporary certificate (§ 110.3) .
- A certificate (temporary or final) can be suspended or revoked in writing where it was issued in error, on incorrect information, or where the premises are in violation of the code or other ordinances (§ 110.4) .
- Exception: certificates of occupancy are not required for work exempt from permits under § 105.3 and for accessory structures as noted in § 110.2 .
Exceptions & special cases
- The 12‑month commencement/abandonment rule applies to permits issued on or after January 1, 2019; earlier rules in other code parts used different timeframes (see the code text) — CWUIC explicitly states the post‑2019 12‑month trigger (§ 105.8) .
- Certificates of occupancy are not required for work exempt from permitting under § 105.3 or for accessory structures under § 110.2 .
- The code official has discretion: extensions, temporary occupancy approvals, and revocations require written action by the code official and must be supported by the justifications the official relies on (§ 105.8, § 110.3, § 105.10) .
If your local enforcing agency has adopted local regulations that are more restrictive, those local rules also apply; the CWUIC text allows for coordination with other agencies in approval processes (§ 105.5) — consult your local code official for local practice .
Common mistakes
- Assuming a permit guarantees future approval: a permit does not validate violations — code official can still require corrections or revoke the permit (§ 105.7, § 105.10) .
- Misreading timeframes: confusing 180 days language from other code sections with the CWUIC’s 12‑month commencement/abandonment rule for permits issued on/after Jan 1, 2019 (§ 105.8) .
- Not requesting a written extension: extensions must be requested in writing with justifiable cause; verbal promises do not extend the permit’s validity (§ 105.8) .
- Occupying without proper certificate: using a partial occupancy without a temporary certificate of occupancy (or beyond its time period) can lead to revocation and enforcement (§ 110.3, § 110.4) .
- Using a permit at a different site or by another person — explicit grounds for suspension/revocation (§ 105.10) .
Worked example — applying the rules with numbers
Scenario: A homeowner receives a CWUIC permit on January 15, 2026 to perform wildfire‑resistant exterior upgrades.
- Deadline to start work: the homeowner must commence work by January 15, 2027 (within 12 months) or the permit becomes invalid under § 105.8 .
- If the homeowner starts work on July 1, 2026, then stops on August 1, 2026 and does not resume: if the suspension/abandonment lasts 12 months (i.e., through August 1, 2027), the permit becomes invalid on that date unless the code official has granted a written extension (§ 105.8) .
- Extension: the homeowner requests an extension in writing on July 15, 2027 and demonstrates justifiable cause. The code official may grant an extension up to 180 days from the date of grant; if granted, work may resume without a new permit for that 180‑day period (§ 105.8) .
- Temporary occupancy: if the work consists of an interior fire‑resistant wall completed and inspected on April 1, 2027, the owner may seek a temporary certificate of occupancy for that portion; the code official can issue it and set a validity period while exterior work continues (§ 110.3) .
- Revocation risk: if the permit application contained a material misstatement that is later discovered, the code official may revoke the permit in writing under § 105.10, and any temporary certificate may be suspended under § 110.4 .
Related provisions (CWUIC)
- § 105.6.1 — Refusal to issue a permit (written rejection and reasons)
- § 105.4.2 — Time limitation of application (application abandonment after 180 days)
- § 105.9 — Retention/placement of permit on site (permit must be kept on premises)
- § 109.3.7.2 / § 109.3.8 — Notices of violation and abatement authority (enforcement actions and abatement)
- § 112.1 — Means of appeals (local board of appeals for code official decisions)
Code references
Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:
CWUIC § 105.6.1 High relevance — show source text
[A] 105.6.1 Refusal to issue a permit. Where the application or construction documents do not conform to the requirements of pertinent laws, the code official shall reject such application in writing, stating the reasons therefor.
[A] 105.7 Validity of permit. The issuance or granting of a permit or approval of plans, specifications and computations shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. Permits presuming to give authority to violate or conceal the provisions of this code or other ordinances of the jurisdiction shall not be valid.
[A] 105.8 Expiration. On or after January 1, 2019, every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 12 months after its issuance or if the work authorized on the site by such permit is suspended or aban- doned for a period of 12 months after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demon- strated. (See Health and Safety Code Section 18938.5 and 18938.6.)
[A] 105.9 Retention of permits. Permits shall at all times be kept on the premises designated therein and shall at all times be subject to inspection by the code official or other authorized representative.
[A] 105.10 Revocation of permits. Permits issued under this code can be suspended or revoked where it is determined by the code official that:
- It is used by a person other than the person to whom the permit was issued.
- It is used for a location other than that for which the permit was issued.
- Any of the conditions or limitations set forth in the permit have been violated.
- The permittee fails, refuses or neglects to comply with any order or notice duly served on him or her under the provisions of this code within the time provided therein.
- There has been any false statement or misrepresentation as to material fact in the application or plans on which the permit or application was made.
- The permit is issued in error or in violation of any other ordinance, regulations or provisions of this code.
The code official is allowed to, in writing, suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect information supplied, or in violation of any ordinance or regulation or any of the provisions of this code.
SECTION 106—CONSTRUCTION DOCUMENTS
[A] 106.1 General. Plans, engineering calculations, diagrams and other data shall be submitted in not fewer than two sets, or in a digital format where allowed by the code official, with each application for a permit. The construction documents shall be prepared by a registered design professional where required by the statutes of the jurisdiction in which the project is to be constructed. Where special conditions exist, the code official is authorized to require additional documents to be prepared by a registered design professional.
Exception: Submission of plans, calculations, construction inspection requirements and other data, if it is found that the nature of the work applied for is such that reviewing of plans is not necessary to obtain compliance with this code.
CWUIC § 109.3.7.2 High relevance — show source text
109.3.7.2 Notice of violation. The code official is authorized to serve a notice of violation or order on the person responsible for violation of the provisions of this code, or in violation of a permit or certificate issued under the provisions of this code. Such order shall direct the discontinuance of the illegal action or condition and the abatement of the violation.
[A] 109.3.8 Abatement of violation. In addition to the imposition of the penalties herein described, the code official is authorized to institute appropriate action to prevent unlawful construction or to restrain, correct or abate a violation; or to prevent illegal occupancy of a structure or premises; or to stop an illegal act, conduct of business or occupancy of a structure on or about any premises.
SECTION 110—CERTIFICATE OF COMPLETION
[A] 110.1 General. A building, structure or premises shall not be used or occupied, and a change in the existing use or occupancy classification of a building, structure, premise or portion thereof shall not be made until the code official has issued a certificate of completion therefor as provided herein. The certificate of occupancy shall not be issued until the code official has determined that the project is in compliance with this code. The code official shall, upon completion of construction, provide the owner or applicant with a copy of the final inspection report that demonstrates the building was constructed in compliance with all applicable state and local building standards, including those for materials and construction methods for wildfire exposure as described in this code. Issuance of a certificate of occupancy by the local building official for the proposed building shall be considered to indicate compliance with this code.
[A] 110.2 Certificate of occupancy. Issuance of a certificate of occupancy shall not be construed as an approval of a violation of the provisions of this code or of other pertinent laws and ordinances of the jurisdiction. Certificates presuming to give authority to violate or cancel the provisions of this code or other laws or ordinances of the jurisdiction shall not be valid.
Exceptions:
Certificates of occupancy are not required for work exempt from permits under Section 105.3.
Accessory structures.
[A] 110.3 Temporary occupancy. The code official is authorized to issue a temporary certificate of occupancy before the completion of the entire work covered by the permit, provided that such portion or portions shall be occupied safely. The code official shall set a time period during which the temporary certificate of occupancy is valid.
[A] 110.4 Revocation. The code official is authorized to, in writing, suspend or revoke a certificate of occupancy or completion issued under the provisions of this code wherever the certificate is issued in error, on the basis of incorrect information supplied, or where it is determined that the building or structure, premise or portion thereof is in violation of any ordinance or regulation or any of the provisions of this code.
SECTION 111—SERVICE UTILITIES
[A] 111.1 Connection of service utilities. A person shall not make connections from a utility, source of energy, fuel, power, water system or sewer system to any building or system that is regulated by this code for which a permit is required until authorized by the code official.
[A] 111.2 Temporary connection. The code official shall have the authority to authorize the temporary connection of the building or system to the utility, source of energy, fuel, power, water system or sewer system for the purpose of testing systems or for use under a temporary approval.
**[A] 111.3 Authority to disconnect service utilities.
CWUIC § 105.3. High relevance — show source text
Exceptions:
Certificates of occupancy are not required for work exempt from permits under Section 105.3.
Accessory structures.
[A] 110.3 Temporary occupancy. The code official is authorized to issue a temporary certificate of occupancy before the completion of the entire work covered by the permit, provided that such portion or portions shall be occupied safely. The code official shall set a time period during which the temporary certificate of occupancy is valid.
[A] 110.4 Revocation. The code official is authorized to, in writing, suspend or revoke a certificate of occupancy or completion issued under the provisions of this code wherever the certificate is issued in error, on the basis of incorrect information supplied, or where it is determined that the building or structure, premise or portion thereof is in violation of any ordinance or regulation or any of the provisions of this code.
SECTION 111—SERVICE UTILITIES
[A] 111.1 Connection of service utilities. A person shall not make connections from a utility, source of energy, fuel, power, water system or sewer system to any building or system that is regulated by this code for which a permit is required until authorized by the code official.
[A] 111.2 Temporary connection. The code official shall have the authority to authorize the temporary connection of the building or system to the utility, source of energy, fuel, power, water system or sewer system for the purpose of testing systems or for use under a temporary approval.
[A] 111.3 Authority to disconnect service utilities. The code official shall have the authority to authorize disconnection of utility service to the building, structure or system regulated by this code and the referenced codes and standards in case of emergency where necessary to eliminate an immediate hazard to life or property or where such utility connection has been made without the approval required by Sections 111.1 and 111.2. The code official shall notify the serving utility and, where possible, the owner or the owner’s authorized agent and the occupant of the building, structure or service system of the decision to disconnect prior to taking such action. If not notified prior to disconnection, the owner, the owner’s authorized agent or the occupant of the building, structure or service system shall be notified in writing as soon as practical thereafter.
SECTION 112—MEANS OF APPEALS
[A] 112.1 General. In order to hear and decide appeals of orders, decisions or determinations made by the code official relative to the application and interpretation of this code, there shall be and is hereby created a board of appeals. The board of appeals shall be appointed by the applicable governing authority and shall hold office at its pleasure. The board shall adopt rules of procedure for conducting its business and shall render all decisions and findings in writing to the appellant, with a duplicate copy to the code official.
[A] 112.2 Limitations on authority. An application for appeal shall be based on a claim that the true intent of this code or the rules legally adopted thereunder have been incorrectly interpreted, the provisions of this code do not fully apply or an equivalent or better form of construction is proposed. The board shall not have authority to waive requirements of this code.
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CWUIC § 105.4.2 High relevance — show source text
[A] 105.4.2 Time limitation of application. An application for a permit for any proposed work shall be deemed to have been abandoned 180 days after the date of filing, unless such application has been pursued in good faith or a permit has been issued; except that the code official is authorized to grant one or more extensions of time for additional periods not exceeding 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.
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[A] 105.5 Permit approval. Before a permit is issued, the code official, or an authorized representative, shall review and approve permitted uses, occupancies or structures. Where laws or regulations are enforceable by other agencies or departments, a joint approval shall be obtained from agencies or departments concerned.
[A] 105.6 Permit issuance. The application, plans, specifications and other data filed by an applicant for a permit shall be reviewed by the code official. If the code official finds that the work described in an application for a permit and the plan, specifications and other data filed therewith conform to the requirements of this code, the code official is allowed to issue a permit to the applicant.
When the code official issues the permit, the code official shall endorse in writing or stamp the plans and specifications APPROVED. Such approved plans and specifications shall not be changed, modified or altered without authorization from the code official, and work regulated by this code shall be done in accordance with the approved plans.
[A] 105.6.1 Refusal to issue a permit. Where the application or construction documents do not conform to the requirements of pertinent laws, the code official shall reject such application in writing, stating the reasons therefor.
[A] 105.7 Validity of permit. The issuance or granting of a permit or approval of plans, specifications and computations shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. Permits presuming to give authority to violate or conceal the provisions of this code or other ordinances of the jurisdiction shall not be valid.
[A] 105.8 Expiration. On or after January 1, 2019, every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 12 months after its issuance or if the work authorized on the site by such permit is suspended or aban- doned for a period of 12 months after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demon- strated. (See Health and Safety Code Section 18938.5 and 18938.6.)
[A] 105.9 Retention of permits. Permits shall at all times be kept on the premises designated therein and shall at all times be subject to inspection by the code official or other authorized representative.
[A] 105.10 Revocation of permits. Permits issued under this code can be suspended or revoked where it is determined by the code official that:
CWUIC § 105.2. High relevance — show source text
Exception: Certificates of occupancy are not required for work exempt from permits in accordance with Section 105.2.
[A] 110.2 Certificate issued. After the code official inspects the structure and does not find violations of the provisions of this code or other laws that are enforced by the department, the code official shall issue a certificate of occupancy that contains the following:
The permit number.
The address of the structure.
The name and address of the owner or the owner’s authorized agent.
A description of that portion of the structure for which the certificate is issued.
A statement that the described portion of the structure has been inspected for compliance with the requirements of this code for the occupancy and division of occupancy and the use for which the proposed occupancy is classified.
The name of the code official.
The edition of the code under which the permit was issued.
The use and occupancy in accordance with the provisions of the California Building Code .
The type of construction as defined in the California Building Code .
The design occupant load and any impact the alteration has on the design occupant load of the area not within the scope of the work.
Where an automatic sprinkler system is provided, and whether an automatic sprinkler system is required.
Any special stipulations and conditions of the building permit.
[A] 110.3 Temporary occupancy. The code official is authorized to issue a temporary certificate of occupancy before the completion of the entire work covered by the permit, provided that such portion or portions shall be occupied safely. The code official shall set a time period during which the temporary certificate of occupancy is valid.
[A] 110.4 Revocation. The code official is authorized to suspend or revoke a certificate of occupancy or completion issued under the provisions of this code, in writing, wherever the certificate is issued in error or on the basis of incorrect information supplied, or where it is determined that the building or structure or portion thereof is in violation of the provisions of this code or other ordinance of the jurisdiction.
SECTION 111—SERVICE UTILITIES
[A] 111.1 Connection of service utilities. A person shall not make connections from a utility, source of energy, fuel, power, water system or sewer system to any building or system that is regulated by this code for which a permit is required, until approved by the code official.
[A] 111.2 Temporary connection. The code official shall have the authority to authorize the temporary connection of the building or system to the utility, source of energy, fuel, power, water system or sewer system for the purpose of testing systems or for use under a temporary approval.
[A] 111.3 Authority to disconnect service utilities. The code official shall have the authority to authorize disconnection of utility service to the building, structure or system regulated by this code and the referenced codes and standards in case of emergency where necessary to eliminate an immediate hazard to life or property or where such utility connection has been made without the approval required by Section 111.1 or 111.2. The code official shall notify the serving utility and, wherever possible, the owner or the owner’s authorized agent and the occupant of the building, structure or service system of the decision to disconnect prior to taking such action. If not notified prior to disconnecting, the owner, the owner’s authorized agent or occupant of the building, structure or service system shall be notified in writing, as soon as practical thereafter.
SECTION 112—MEANS OF APPEALS
CWUIC § 105.4 High relevance — show source text
[A] 105.4 Validity of permit. The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the building official from requiring the correction of errors in the construction documents and other data. The building official is authorized to prevent occupancy or use of a structure where in violation of this code or of any other ordinances of this jurisdiction.
[A] 105.5 Expiration. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 180 days after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.
105.5.1 Expiration. On or after January 1, 2019, every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 12 months after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 12 months after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated . (See Health and Safety Code Section 18938.5 and 18938.6.)
[A] 105.6 Suspension or revocation. The building official is authorized to suspend or revoke a permit issued under the provisions of this code wherever the permit is issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any ordinance or regulation or any of the provisions of this code.
[A] 105.7 Placement of permit. The building permit or copy shall be kept on the site of the work until the completion of the project.
SECTION 106—FLOOR AND ROOF DESIGN LOADS
[A] 106.1 Live loads posted. In commercial or industrial buildings, for each floor or portion thereof designed for live loads exceeding 50 psf (2.40 kN/m [2] ), such design live loads shall be conspicuously posted by the owner or the owner’s authorized agent in that part of each story in which they apply, using durable signs. It shall be unlawful to remove or deface such notices. [DSA-SS, DSA-SS/CC] These posting requirements also apply to school and state-owned essential services buildings as regulated by DSA.
106.1.1 Snow load posting. [OSHPD 1, 1R, 2, 4 & 5] Snow loads used in design shall be posted as for live loads.
CWUIC § 104.2.2.7 High relevance — show source text
Outbuilding 202
Peer Review 104.2.2.7, 202 Permits
Application 105.4 Approval 105.5 Expiration 105.8 Issuance 105.6 Preliminary inspection 105.4.1 Refusal to issue 105.6.1
Required 105.2 Retention 105.9
Revocation 105.10 Validity 105.7 Work exempt from permit 105.3 Placarding as Unsafe 109.3.5.3 Powers and Duties of the Code
Official 104.1
Practical Difficulties 104.2.3 Protection of Pumps and Water Storage Facilities Appendix A, A107
Rafter Tail 202 Referenced Standards 102.4, Chapter 7 Registered Design Professional 104.2.1.2, 104.2.2.6.2, 106.1, 202 Residential Unit 202 Retroactivity 101.4 Ridgelline 202 Road 202 Roof Covering 202 Roof Covering System 202 Roof Coverings, Replacement or Repair of 507
Roof Deck 202
Scope 101 Self-Defense Mechanism Appendix G Service Utilities 111
Slope 202 Spark Arrestors 605 Stop Work Order 113 Storage of Firewood and Combustible Materials 607 Strategic Ridgeline 202 Structure 202
Subdivision 202
Technical Assistance 104.2.1 Temporary Uses, Equipment and Systems 107 Tree Crown 202
Trees 603.4.2
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INDEX
Undeveloped Ridgeline 202 Unenclosed Accessory Structure 202
Vegetation Control Appendix A, A102 Vegetation management compliance 106.4 Vegetation Management Plan Appendix B Vents 504.10
Vertical Curve 202
Water Supply Adequate water supply 404.5 Applicability 402 Draft sites 404.3 Hydrants 404.4 Identification 404.8
Obstructions 404.7 Reliability 404.10 Required water supply 404.2 Subdivisions 402.1 Testing and maintenance 404.9 Water sources 404.2
Wildfire 202
Wildland 202
Wildland-Urban Interface Area 202
Wildland-Urban Interface Area Designations 302 Declaration 302.1
Mapping 302.2 Review 302.3
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HISTORY NOTE APPENDIX
2025 California Wildland-Urban Interface Code California Code of Regulations, Title 24, Part 7
HISTORY:
CWUIC § 105.3.2 High relevance — show source text
[A] 105.3.2 Time limitation of application. An application for a permit for any proposed work shall be deemed to have been abandoned 180 days after the date of filing, unless such application has been pursued in good faith or a permit has been issued; except that the code official is authorized to grant one or more extensions of time for additional periods not exceeding 90 days each. The extension shall be requested in writing and justifiable cause demonstrated.
[A] 105.4 Validity of permit. The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the code official from requiring the correction of errors in the construction documents and other data. The code official is authorized to prevent occupancy or use of a structure where in violation of this code or of any other ordinances of this jurisdiction.
[A] 105.5 Expiration. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 180 days after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced. The code official is authorized to grant, in writing, one or more extensions of time for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.
105.5.1 Expiration. On or after January 1, 2019, every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 12 months after its issuance or if the work authorized on the site by such permit is suspended or abandoned for a period of 12 months after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated. (See Health and Safety Code Section 18938.5 and 18938.6).
[A] 105.6 Suspension or revocation. The code official is authorized to suspend or revoke a permit issued under the provisions of this code wherever the permit is issued in error or on the basis of incorrect, inaccurate or incomplete information, or in violation of any ordinance or regulation or any of the provisions of this code.
[A] 105.7 Placement of permit. The building permit or copy shall be kept on the site of the work until the completion of the project.
SECTION 106—CONSTRUCTION DOCUMENTS
[A] 106.1 General. Submittal documents consisting of construction documents, special inspection and structural observation programs, investigation and evaluation reports, and other data shall be submitted in two or more sets, or in a digital format where allowed by the code official, with each application for a permit. The construction documents shall be prepared by a registered
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design professional where required by the statutes of the jurisdiction in which the project is to be constructed. Where special conditions exist, the code official is authorized to require additional construction documents to be prepared by a registered design professional.
CWUIC § 105.3.1 High relevance — show source text
Identify and describe the work to be covered by the permit for which application is made. 2. Describe the land on which the proposed work is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed building or work. 3. Indicate the use and occupancy for which the proposed work is intended. 4. Be accompanied by construction documents and other information as required in Section 107. 5. State the valuation of the proposed work. 6. Be signed by the applicant, or the applicant’s authorized agent. 7. Give such other data and information as required by the building official.
[A] 105.3.1 Action on application. The building official shall examine or cause to be examined applications for permits and amendments thereto within a reasonable time after filing. If the application or the construction documents do not conform to the requirements of pertinent laws, the building official shall reject such application in writing, stating the reasons therefor. If the building official is satisfied that the proposed work conforms to the requirements of this code and laws and ordinances applicable thereto, the building official shall issue a permit therefor as soon as practicable.
[A] 105.3.2 Time limitation of application. An application for a permit for any proposed work shall be deemed to have been abandoned 180 days after the date of filing, unless such application has been pursued in good faith or a permit has been issued; except that the building official is authorized to grant one or more extensions of time for additional periods not exceeding 90 days each. The extension shall be requested in writing and justifiable cause demonstrated. [OSHPD 1, 1R, 2, 4 & 5] Time limitation shall be in accordance with the California Administrative Code, Chapter 7, Section 7-129.
[A] 105.4 Validity of permit. The issuance or granting of a permit shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. Permits presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid. The issuance of a permit based on construction documents and other data shall not prevent the building official from requiring the correction of errors in the construction documents and other data. The building official is authorized to prevent occupancy or use of a structure where in violation of this code or of any other ordinances of this jurisdiction.
[A] 105.5 Expiration. Every permit issued shall become invalid unless the work on the site authorized by such permit is commenced within 180 days after its issuance, or if the work authorized on the site by such permit is suspended or abandoned for a period of 180 days after the time the work is commenced. The building official is authorized to grant, in writing, one or more extensions of time, for periods not more than 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.
CWUIC § 110.5 High relevance — show source text
[A] 110.5 Inspection requests. It shall be the duty of the holder of the building permit or their duly authorized agent to notify the building official when work is ready for inspection. It shall be the duty of the permit holder to provide access to and means for inspections of such work that are required by this code.
[A] 110.6 Approval required. Work shall not be done beyond the point indicated in each successive inspection without first obtaining the approval of the building official. The building official, upon notification, shall make the requested inspections and shall either indicate the portion of the construction that is satisfactory as completed, or notify the permit holder or the permit holder’s agent wherein the same fails to comply with this code. Any portions that do not comply shall be corrected and such portion shall not be covered or concealed until authorized by the building official.
1-32 2025 CALIFORNIA BUILDING CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
ADMINISTRATION
SECTION 111—CERTIFICATE OF OCCUPANCY
[A] 111.1 Change of occupancy. A building or structure shall not be used or occupied in whole or in part, and a change of occupancy of a building or structure or portion thereof shall not be made, until the building official has issued a certificate of occupancy therefor as provided herein. Issuance of a certificate of occupancy shall not be construed as an approval of a violation of the provisions of this code or of other ordinances of the jurisdiction. Certificates presuming to give authority to violate or cancel the provisions of this code or other ordinances of the jurisdiction shall not be valid.
Exception: Certificates of occupancy are not required for work exempt from permits in accordance with Section 105.2.
[A] 111.2 Certificate issued. After the building official inspects the building or structure and does not find violations of the provisions of this code or other laws that are enforced by the department, the building official shall issue a certificate of occupancy that contains the following:
The permit number.
The address of the structure.
The name and address of the owner or the owner’s authorized agent.
A description of that portion of the structure for which the certificate is issued.
A statement that the described portion of the structure has been inspected for compliance with the requirements of this code.
The name of the building official.
The edition of the code under which the permit was issued.
The use and occupancy, in accordance with the provisions of Chapter 3.
The type of construction as defined in Chapter 6.
The design occupant load.
Where an automatic sprinkler system is provided, whether the sprinkler system is required.
Any special stipulations and conditions of the building permit.
[A] 111.3 Temporary occupancy. The building official is authorized to issue a temporary certificate of occupancy before the completion of the entire work covered by the permit, provided that such portion or portions shall be occupied safely. The building official shall set a time period during which the temporary certificate of occupancy is valid.
[A] 111.4 Revocation. The building official is authorized to suspend or revoke a certificate of occupancy or completion issued under the provisions of this code, in writing, wherever the certificate is issued in error, or on the basis of incorrect information supplied, or where it is determined that the building or structure or portion thereof is in violation of the provisions of this code or other ordinance of the jurisdiction.
SECTION 112—SERVICE UTILITIES
CWUIC § 504.7 High relevance — show source text
Ignition Source Control Appendix A, A104 Ignition-Resistant Building Material 202, 503 Ignition-Resistant Construction 504 Appendages 504.7 Detached accessory structures 504.11 Eaves 504.3
Exterior doors 504.9
Exterior walls 504.5
Gutters and downspouts 504.4 Protection of eaves 504.3 Roof covering 504.2 Underfloor protection 504.6 Vents 504.10
Windows 504.8 Ignition-Resistant Construction and Material 503 Inspection and Enforcement 109 Abatement 109.3.8 Authority to inspect 109.1.2 Citations 109.3.4
Enforcement 109.2 Placarding 109.3.5.3 Prosecution 109.3.6
Reinspections 109.1.3 Right of entry 104.4 Testing 109.1.4 Unsafe conditions 109.3.5
Key Box 403.1
Land Use Limitations Appendix A, A108 Legal Defense of the Code Official 104.8.1 Liability of the Code Official 104.8
Log Wall Construction 202 LP-Gas Installations 606
Maintenance 101.6 Maintenance of Defensible Space 604 Modified area 604.2 Responsibility 604.3 Trees 604.4 Mapping of Wildland-Urban Interface Area 302.2 Multilayered Glazed Panels 202
Noncombustible Roof Covering 202
Outbuilding 202
Peer Review 104.2.2.7, 202 Permits
Application 105.4 Approval 105.5 Expiration 105.8 Issuance 105.6 Preliminary inspection 105.4.1 Refusal to issue 105.6.1
Required 105.2 Retention 105.9
Revocation 105.10 Validity 105.7 Work exempt from permit 105.3 Placarding as Unsafe 109.3.5.3 Powers and Duties of the Code
Official 104.1
Practical Difficulties 104.2.3 Protection of Pumps and Water Storage Facilities Appendix A, A107
Rafter Tail 202 Referenced Standards 102.4, Chapter 7 Registered Design Professional 104.2.1.2, 104.2.2.6.2, 106.1, 202 Residential Unit 202 Retroactivity 101.4 Ridgelline 202 Road 202 Roof Covering 202 Roof Covering System 202 Roof Coverings, Replacement or Repair of 507
Roof Deck 202
Scope 101 Self-Defense Mechanism Appendix G Service Utilities 111
Slope 202 Spark Arrestors 605 Stop Work Order 113 Storage of Firewood and Combustible Materials 607 Strategic Ridgeline 202 Structure 202
Subdivision 202
Frequently asked questions
What happens if my permit expires before I start work?
If the permit becomes invalid (work not commenced within 12 months), you must obtain a new permit before starting work unless the code official granted a written extension; the CWUIC requires requests for extensions to be in writing with justifiable cause (§ 105.8) .
Can the code official revoke a permit simply because the project changed plans?
Yes — if the permit was issued in error or based on incorrect information, or if conditions/limitations of the permit are violated, the code official may suspend or revoke the permit in writing under § 105.10 .
How long can a temporary certificate of occupancy last?
The code official must set the time period for a temporary certificate of occupancy; there is no fixed statewide duration in CWUIC — the period is set by the code official for each case (§ 110.3) .
Do I need a certificate of occupancy for accessory structures or minor work?
Certificates of occupancy are not required for work exempt from permits under § 105.3 or for certain accessory structures as noted in § 110.2; check § 105.3 and consult the local code official for specifics .
If I get a temporary certificate, can it be revoked?
Yes. The code official can suspend or revoke any certificate (temporary or final) issued in error, based on incorrect information, or if the building/portion is in violation of the code or other ordinances (§ 110.4) .
More in California Wildland-Urban Interface Code
- Administration and Definitions
- Board of Appeals, Administration & Enforcement (permits, code official duties, appeals process)
- Wildland‑Urban Interface Area Designation & Mapping
- Fire Service Access & Water Supply (fire apparatus roads, driveways, hydrants, draft sites, standby power)
- Wildland‑Urban Interface Area Requirements (access, water, premises identification, key boxes)
- Referenced Standards & Test Methods
- Special Building Construction Regulations (ignition‑resistant construction, roof/vent/assembly requirements)
- Appendices and Model Ordinances (vegetation plans, severity‑zone adoption, home‑hardening guidance)
- Fire Protection Requirements (fire protection plans, systems, safety element provisions)
- Referenced California Documents & Matrix (CCR/Title 14 & 19 cross‑references, statutory references)
- Vegetation Management & Defensible Space (vegetation plans, maintenance, fire‑smart characteristics)
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