CRC · California Residential Code

When is a building permit required and what common work is exempt?

If your project changes the building, occupancy, or any regulated electrical, plumbing, mechanical or gas system you must get a permit (see **§ R105.1**). Some small or specific items (small detached sheds ≤ **120 sq ft**, fences ≤ **7 ft**, short retaining walls ≤ **4 ft**, finish work, very small above‑ground pools, certain portable appliances, etc.) are listed as **exempt** in **§ R105.2**, but exemptions carry size/attachment/height limits and do not allow violations of other codes or local rules. Always confirm with your local building official and follow the application requirements in **§ R105.3**.

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Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or to install/alter regulated electrical, gas, mechanical or plumbing systems must first apply for and obtain a permit — § R105.1.
The code also lists specific categories of work for which a permit is not required; however, those exemptions do not authorize work that would violate this code or other laws — see § R105.2.
The permit application, timing and filing requirements are set out in § R105.3 and related sections (application contents, time limits, etc.).

The single most important rule: if your project changes the structure, occupancy, or regulated systems (electrical, plumbing, mechanical, gas), you need a building permit — § R105.1.

Requirements in detail

Core rule (who/what triggers a permit)

  • Who: any owner or owner’s authorized agent proposing the work. § R105.1.
  • What: work that will construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or that will erect, install, enlarge, alter, repair, remove, convert or replace a regulated electrical, gas, mechanical or plumbing system. § R105.1.

Exempt work — the common categories and decision dimensions

Exemptions are limited and often include specific size/height/capacity thresholds or other conditions. Exemption does not eliminate the need to comply with other code requirements (e.g., fire, accessibility, wildland rules). § R105.2.

Work category (decision question) Decision-relevant dimension / value Typical real-world example Code Reference
Detached accessory structures (sheds, playhouses) — is a permit needed? Floor area exceeds 120 square feet? 8' x 10' shed = 80 ft² → exempt; 12' x 12' shed = 144 ft² → permit required § R105.2
Fences Height over 7 feet? 6' wooden fence → exempt; 8' retaining/screen fence → permit likely required § R105.2
Retaining walls Height over 4 feet (measured from footing bottom to top) or supporting surcharge? 3.5' garden wall → exempt unless supporting surcharge; 5' wall → permit required § R105.2
Water tanks on grade Capacity over 5,000 gallons or height:diameter ratio > 2:1? 1,000 gal tank → exempt; tall narrow 8'×3' tank >2:1 → permit required § R105.2
Sidewalks & driveways More than 30 inches above adjacent grade or over a basement/story below or part of an accessible route? Flat driveway → exempt; raised driveway 3' above grade over a basement → permit required § R105.2
Finish work Painting, papering, tiling, carpeting, cabinets, countertops Interior kitchen cabinet replacement → exempt (unless other systems affected) § R105.2
Prefab pools (R‑3 accessory) Depth less than 24 inches and volume ≤ 5,000 gal, installed entirely above ground? Above‑ground kiddie pool 18" deep → exempt § R105.2
Window awnings Projecting ≤ 54 inches and no additional support required 4' (48") awning attached to exterior wall → exempt § R105.2
Decks Area ≤ 200 sq ft, height ≤ 30 inches above grade, not attached to dwelling and not serving required exit Free‑standing 10'×15' (150 ft²), 18" above grade → exempt; attached deck → permit required § R105.2
Electrical minor repairs Ordinary repairs and lamp replacement; low-voltage under 25 volts and ≤50 watts Replacing a lamp or plugging in a portable appliance → exempt; installing new branch circuits → permit required § R105.2
Mechanical / Gas / Plumbing portable items Portable heaters, portable cooling units, minor part replacements not altering approval or making unsafe Swapping plug‑in space heater → exempt; new gas line to a cooktop → permit required § R105.2

Notes:

  • Several exempt items carry additional qualifiers (e.g., “not supporting a surcharge,” “not part of an accessible route,” or wildland/other local regs may still apply). See § R105.2.
  • Public service agency work that is under their ownership/control is separately addressed — § R105.2.3.

Permit application basics (what to expect)

  • The permit application must identify and describe the work, location, intended use/occupancy, valuation, and be accompanied by required construction documents — § R105.3.
  • Applications can be rejected if documents do not conform; the building official must approve before a permit is issued — § R105.3.1.

Exceptions & special cases

  • Exemption does not waive compliance: an exempt project still must comply with the code and other laws (zoning, wildland interface, health/safety). § R105.2.
  • Some exemptions are limited to certain occupancies (example: prefabricated pools accessory to Group R‑3). § R105.2.
  • Local jurisdictions may adopt stricter rules or require permits for items exempt at the state/code level; the building official is authorized to require permits where public safety would be at risk (see wildland code language on conditions).
  • Public service agencies: installations under the ownership/control of such agencies may be exempt — § R105.2.3.

Common mistakes

  • Assuming “small” always means exempt — many exemptions depend on attachment, height, area, or function (e.g., a small deck attached to a house is not exempt). § R105.2.
  • Treating an exemption as permission to violate other codes (e.g., wildland requirements or structural/fire rules). Exemption ≠ carte blanche. § R105.2.
  • Replacing fixtures that involve wiring or piping modifications (not simple lamp/plug replacement) without a permit. § R105.2 and ordinary repairs note.
  • Ignoring the building official’s authority: a jurisdiction may require permits for things listed as exempt if public safety concerns exist. See permit application/authority language in § R105.3 and related admin sections.

Worked example — concrete scenario

Scenario: You want to build a free‑standing deck in your backyard that will be 10 ft × 14 ft = 140 square feet, and the deck surface will be 24 inches above adjacent grade, and it will not be attached to the house.

Step‑by‑step:

  1. Check the deck exemption thresholds: area ≤ 200 sq ft, height ≤ 30 inches, not attached, and must not serve the required exit door. § R105.2.
  2. Your deck is 140 sq ft (≤ 200 sq ft) and 24 inches (≤ 30 inches) and is not attached. It meets the listed exemption conditions. Result: a building permit is generally not required under § R105.2 for this deck.

Caveats: confirm it does not serve an egress door that is required by Section R318.4, that local ordinances or HOA rules don’t impose additional permit requirements, and that the deck does not encroach into setback or fire‑hazard requirements. Exemption does not relieve compliance obligations. § R105.2.

Related provisions

  • § R105.1 — Permit required (definitions of when a permit is required).
  • § R105.2 — Work exempt from permit (lists common exempt items and qualifiers).
  • § R105.3 — Application for permit; contents and processing.
  • § R106 — Construction documents required with permit applications (referenced by R105.3).
  • § R108.6 — Work commencing before permit issuance (investigation fees/penalties).
  • § R109 — Inspections required for permitted work.
  • § R110 — Certificate of occupancy (notes certificates not required for work exempt under R105.2).

Code references

Grounded in the retrieved California Residential Code — click a citation to read the verbatim passage:

  • CRC § 105.1 High relevance — show source text

    SECTION 105—PERMITS

    [A] 105.1 Required. Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit.

    [A] 105.1.1 Annual permit. Instead of an individual permit for each alteration to an already approved electrical, gas, mechanical or plumbing installation, the building official is authorized to issue an annual permit upon application therefor to any person, firm or corporation regularly employing one or more qualified tradespersons in the building, structure or on the premises owned or operated by the applicant for the permit.

    [A] 105.1.2 Annual permit records. The person to whom an annual permit is issued shall keep a detailed record of alterations made under such annual permit. The building official shall have access to such records at all times or such records shall be filed with the building official as designated.

    [A] 105.2 Work exempt from permit. Exemptions from permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. Permits shall not be required for the following:

    2025 CALIFORNIA BUILDING CODE 1-27

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    ADMINISTRATION

    Building:

    1. One-story detached accessory structures used as tool and storage sheds, playhouses and similar uses, provided that the floor area does not exceed than 120 square feet (11.15 m [2] ). It is permissible that these structures still be regulated by Section 710A, despite exemption from permit.

    2. Fences, other than swimming pool barriers, not over 7 feet (2134 mm) high.

    3. Oil derricks.

    4. Retaining walls that are not over 4 feet (1219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge or impounding Class I, II or IIIA liquids.

    5. Water tanks supported directly on grade if the capacity is not greater than 5,000 gallons (18 925 L) and the ratio of height to diameter or width is not greater than 2:1.

    6. Sidewalks and driveways not more than 30 inches (762 mm) above adjacent grade, and not over any basement or story below and are not part of an accessible route.

    7. Painting, papering, tiling, carpeting, cabinets, countertops and similar finish work.

    8. Temporary motion picture, television and theater stage sets and scenery.

    9. Prefabricated swimming pools accessory to a Group R-3 occupancy that are less than 24 inches (610 mm) deep, are not greater than 5,000 gallons (18 925 L) and are installed entirely above ground.

    10. Shade cloth structures constructed for nursery or agricultural purposes, not including service systems.

    11. Swings and other playground equipment accessory to detached one- and two-family dwellings.

  • CRC § 104.9.1 High relevance — show source text

    ADMINISTRATION

    [A] 104.9.1 Materials and equipment reuse. Materials, equipment and devices shall not be reused unless such elements are in good working condition and approved.

    SECTION 105—PERMITS

    [A] 105.1 Required. Any owner or owner’s authorized agent who intends to repair, add to, alter, relocate, demolish or change the occupancy of a building or to repair, install, add, alter, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the code official and obtain the required permit.

    [A] 105.1.1 Annual permit. Instead of an individual permit for each alteration to an already approved electrical, gas, mechanical, or plumbing installation, the code official is authorized to issue an annual permit on application therefor to any person, firm or corporation regularly employing one or more qualified trade persons in the building, structure, or on the premises owned or operated by the applicant for the permit.

    [A] 105.1.2 Annual permit records. The person to whom an annual permit is issued shall keep a detailed record of alterations made under such annual permit. The code official shall have access to such records at all times, or such records shall be filed with the code official as designated.

    [A] 105.2 Work exempt from permit. Exemptions from permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. Permits shall not be required for the following:

    Building:

    1. Sidewalks and driveways not more than 30 inches (762 mm) above grade and not over any basement or story below and that are not part of an accessible route.
    2. Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish work.
    3. Temporary motion picture, television, and theater stage sets and scenery.
    4. Shade cloth structures constructed for nursery or agricultural purposes, and not including service systems.
    5. Window awnings supported by an exterior wall of Group R-3 or Group U occupancies.
    6. Nonfixed and movable cases, counters and partitions not over 5 feet 9 inches (1753 mm) in height.

    Electrical:

    1. Repairs and maintenance: Minor repair work, including the replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles.

    2. Radio and television transmitting stations: The provisions of this code shall not apply to electrical equipment used for radio and television transmissions, but do apply to equipment and wiring for power supply, the installations of towers and antennas.

    3. Temporary testing systems: A permit shall not be required for the installation of any temporary system required for the testing or servicing of electrical equipment or apparatus.

    Gas:

    1. Portable heating appliance.
    2. Replacement of any minor part that does not alter approval of equipment or make such equipment unsafe.

    Mechanical:

    1. Portable heating appliance.
    2. Portable ventilation equipment.
    3. Portable cooling unit.
    4. Steam, hot or chilled water piping within any heating or cooling equipment regulated by this code.
    5. Replacement of any part that does not alter its approval or make it unsafe.
    6. Portable evaporative cooler.
    7. Self-contained refrigeration system containing 10 pounds (4.54 kg) or less of refrigerant and actuated by motors of 1 horsepower (746 W) or less.
  • CRC § 7.4 High relevance — show source text

    R104.7.4 Tests. The building official shall keep a record of tests conducted to comply with Section R104.2.2.5.

    R104.7.5 Fees. The building official shall keep a record of fees collected and refunded in accordance with Section R108.

    R104.8 Liability. The building official, member of the board of appeals or employee charged with the enforcement of this code, while acting for the jurisdiction in good faith and without malice in the discharge of the duties required by this code or other pertinent law or ordinance, shall not thereby be personally liable, either civilly or criminally, and is hereby relieved from personal liability for any damage accruing to persons or property as a result of an act or by reason of any act or omission in the discharge of official duties.

    R104.8.1 Legal defense. Any suit or criminal complaint instituted against an officer or employee because of an act performed by that officer or employee in the lawful discharge of duties and under the provisions of this code or other laws or ordinances implemented through the enforcement of this code shall be defended by legal representatives of the jurisdiction until the final termination of the proceedings. The building official or any subordinate shall not be liable for cost in any action, suit or proceeding that is instituted in pursuance of the provisions of this code.

    R104.9 Approved materials and equipment. Materials, equipment and devices approved by the building official shall be constructed and installed in accordance with such approval.

    R104.9.1 Materials and equipment reuse. Materials, equipment and devices shall not be reused unless such elements are in good working condition and approved.

    SECTION R105—PERMITS

    R105.1 Required. Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit.

    R105.2 Work exempt from permit. Exemption from permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. Permits shall not be required for the following:

    Building:

    1. Other than storm shelters, one-story detached accessory structures, provided that the floor area does not exceed 120 square feet (11.15 m [2] ). It is permissible that these structures still be regulated by Part 7 California Wildland Urban-Interface Code, despite exemption from permit.
    2. Fences not over 7 feet (2134 mm) high.
    3. Retaining walls that are not over 4 feet (1219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge.
    4. Water tanks supported directly upon grade if the capacity does not exceed 5,000 gallons (18 927 L) and the ratio of height to diameter or width does not exceed 2 to 1.
  • CRC § 9.1 High relevance — show source text

    R104.9.1 Materials and equipment reuse. Materials, equipment and devices shall not be reused unless such elements are in good working condition and approved.

    SECTION R105—PERMITS

    R105.1 Required. Any owner or owner’s authorized agent who intends to construct, enlarge, alter, repair, move, demolish or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical or plumbing system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the building official and obtain the required permit.

    R105.2 Work exempt from permit. Exemption from permit requirements of this code shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction. Permits shall not be required for the following:

    Building:

    1. Other than storm shelters, one-story detached accessory structures, provided that the floor area does not exceed 120 square feet (11.15 m [2] ). It is permissible that these structures still be regulated by Part 7 California Wildland Urban-Interface Code, despite exemption from permit.

    2. Fences not over 7 feet (2134 mm) high.

    3. Retaining walls that are not over 4 feet (1219 mm) in height measured from the bottom of the footing to the top of the wall, unless supporting a surcharge.

    4. Water tanks supported directly upon grade if the capacity does not exceed 5,000 gallons (18 927 L) and the ratio of height to diameter or width does not exceed 2 to 1.

    5. Sidewalks and driveways.

    6. Painting, papering, tiling, carpeting, cabinets, counter tops and similar finish work.

    7. Prefabricated swimming pools that are less than 24 inches (610 mm) deep.

    8. Swings and other playground equipment.

    9. Window awnings supported by an exterior wall that do not project more than 54 inches (1372 mm) from the exterior wall and do not require additional support.

    10. Decks not exceeding 200 square feet (18.58 m [2] ) in area, that are not more than 30 inches (762 mm) above grade at any point, are not attached to a dwelling or townhouse and do not serve the exit door required by Section R318.4.

    Electrical:

    1. Listed cord-and-plug connected temporary decorative lighting.
    2. Reinstallation of attachment plug receptacles but not the outlets therefor.
    3. Replacement of branch circuit overcurrent devices of the required capacity in the same location.
    4. Electrical wiring, devices, appliances, apparatus or equipment operating at less than 25 volts and not capable of supplying more than 50 watts of energy.

    1-20 2025 CALIFORNIA RESIDENTIAL CODE

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    DIVISION II SCOPE AND ADMINISTRATION

    1. Minor repair work, including the replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles.

    Gas:

    1. Portable heating, cooking or clothes drying appliances.
    2. Replacement of any minor part that does not alter approval of equipment or make such equipment unsafe.
    3. Portable-fuel-cell appliances that are not connected to a fixed piping system and are not interconnected to a power grid.

    Mechanical:

  • CRC § 104.9.1 High relevance — show source text

    [A] 104.9.1 Materials and equipment reuse. Materials, equipment and devices shall not be reused unless such elements are in good working order and approved.

    [A] 104.10 Other agencies. When requested to do so by the code official, other officials of this jurisdiction shall assist and cooperate with the code official in the discharge of the duties required by this code.

    SECTION 105—PERMITS

    [A] 105.1 General. Where not otherwise provided in the requirements of the California Building Code or California Fire Code, permits are required in accordance with Sections 105.2 through 105.10.

    [A] 105.2 Permits required. Unless otherwise exempted, buildings or structures regulated by this code shall not be erected, constructed, altered, repaired, moved, removed, converted, demolished or changed in use or occupancy unless a separate permit for each building or structure has first been obtained from the code official.

    For buildings or structures erected for temporary uses, see Section A108.3.

    Where required by the code official, a permit shall be obtained for the following activities, operations, practices or functions within a wildland-urban interface area:

    1. Automobile wrecking yard.

    2. Candles and open flames in assembly areas.

    3. Explosives or blasting agents.

    4. Fireworks.

    5. Flammable or combustible liquids.

    6. Hazardous materials.

    7. Liquefied petroleum gases.

    8. Lumberyards.

    9. Motor vehicle fuel-dispensing stations.

    10. Open burning.

    11. Pyrotechnical special effects material.

    12. Tents, canopies and temporary membrane structures.

    13. Tire storage.

    14. Welding and cutting operations.

    [A] 105.3 Work exempt from permit. Exemption from the permit requirements of this code or in other Parts of Title 24 shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction.

    The code official is authorized to stipulate conditions for permits. Permits shall not be issued where public safety would be at risk, as determined by the code official.

    [A] 105.4 Permit application. To obtain a permit, the applicant shall first file an application therefor in writing on a form furnished by the code enforcement agency for that purpose. Every such application shall:

    1. Identify and describe the work, activity, operation, practice or function to be covered by the permit for which application is made.

    2. Describe the land on which the proposed work, activity, operation, practice or function is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed building, work, activity, operation, practice or function.

    3. Indicate the use or occupancy for which the proposed work, activity, operation, practice or function is intended.

    4. Be accompanied by plans, diagrams, computation and specifications and other data as required in Section 106 of this code.

    5. State the valuation of any new building or structure or any addition, remodeling or alteration to an existing building.

    6. Be signed by the applicant or the applicant’s authorized agent.

    7. Give such other data and information as required by the code official.

    [A] 105.4.1 Preliminary inspection. Before a permit is issued, the code official is authorized to inspect and approve the systems, equipment, buildings, devices, premises and spaces or areas to be used.

  • CRC § 1.8.4.1 High relevance — show source text

    **_ 1.8.4.1 Permits. A written construction permit shall be obtained from the enforcing agency prior to the erection, construction, reconstruction, installation, relocation, or alteration of any mechanical system. Exceptions: (1) Work exempt from permits as specified in Chapter 1, Scope and Administration, Division II, Section 104.2 Items (1) through (5) of this code. (2) Changes, alterations, or repairs of a minor nature not affecting structural features, egress, sanitation, safety, or accessibility as determined by the enforcing agency.

    (3) Retroactive permits issued in accordance with Health and Safety Code Section 17958.12.

    Exemptions from permit requirements shall not be deemed to grant authorization for any work to be done in any manner in violation of other provisions of law or this code. 1.8.4.2 Fees. Subject to other provisions of law, the governing body of any city, county, or city and county may prescribe fees to defray the cost of enforcement of rules and regulations promulgated by the Department of Housing and Community Development. The amount of the fees shall not exceed the amount reasonably neces- sary to administer or process permits, certificates, forms, or other documents, or to defray the costs of enforcement. For additional information, see State Housing Law, Health and Safety Code, Division 13, Part 1.5, Section 17951 and California Code of Regulations, Title 25, Divi- sion 1, Chapter 1, Subchapter 1, Article 3, commencing with Section 6.

    1.8.4.3 Plan Review and Time Limitations. Subject to other provisions of law, provisions related to plan checking, prohibition of excessive delays, and contracting with or employment of private parties to perform plan checking are set forth in the State Housing Law, Health and Safety Code Section 17960.1, and for employee housing, in Health and Safety Code Section 17021. 1.8.4.3.1 Retention of Plans. The building depart- ment of every city, county, or city and county shall maintain an official copy, microfilm, or electronic or other type of photographic copy of the plans of every building, during the life of the building, for which the department issued a building permit. Exceptions: (1) Single or multiple dwellings not more than two stories and basement in height. (2) Garages and other structures appurtenant to buildings listed in Exception 1. (3) Farm or ranch buildings appurtenant to build- ings listed in Exception 1. (4) Any one-story building where the span between bearing walls does not exceed 25 feet (7620 mm), except a steel frame or concrete building. All plans for common interest developments as defined in Section 4100 of the California Civil Code shall be retained. For additional information regarding plan retention and reproduction of plans by an enforcing agency, see Health and Safety Code Sections 19850 through 19852. 1.8.4.4 Inspections. Construction or work for which a permit is required shall be subject to inspection by the building official and such construction or work shall remain accessible and exposed for inspection purposes _until approved.

  • CRC § 105.3 High relevance — show source text
    1. Tire storage.
    2. Welding and cutting operations.

    [A] 105.3 Work exempt from permit. Exemption from the permit requirements of this code or in other Parts of Title 24 shall not be deemed to grant authorization for any work to be done in any manner in violation of the provisions of this code or any other laws or ordinances of this jurisdiction.

    The code official is authorized to stipulate conditions for permits. Permits shall not be issued where public safety would be at risk, as determined by the code official.

    [A] 105.4 Permit application. To obtain a permit, the applicant shall first file an application therefor in writing on a form furnished by the code enforcement agency for that purpose. Every such application shall:

    1. Identify and describe the work, activity, operation, practice or function to be covered by the permit for which application is made.

    2. Describe the land on which the proposed work, activity, operation, practice or function is to be done by legal description, street address or similar description that will readily identify and definitely locate the proposed building, work, activity, operation, practice or function.

    3. Indicate the use or occupancy for which the proposed work, activity, operation, practice or function is intended.

    4. Be accompanied by plans, diagrams, computation and specifications and other data as required in Section 106 of this code.

    5. State the valuation of any new building or structure or any addition, remodeling or alteration to an existing building.

    6. Be signed by the applicant or the applicant’s authorized agent.

    7. Give such other data and information as required by the code official.

    [A] 105.4.1 Preliminary inspection. Before a permit is issued, the code official is authorized to inspect and approve the systems, equipment, buildings, devices, premises and spaces or areas to be used.

    [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.

    2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 1-19

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    �

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    ADMINISTRATION

    [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.

  • CRC § 103.2 High relevance — show source text

    103.2 Liability . . . . . . . . . . . . . . . . . . . . . . 22

    103.3 Applications and Permits . . . . . . . . 22

    103.4 Right of Entry . . . . . . . . . . . . . . . . . 22

    104.0 Permits . . . . . . . . . . . . . . . . . . . . . . 22

    104.1 Permits Required . . . . . . . . . . . . . . 22

    104.2 Exempt Work . . . . . . . . . . . . . . . . . 22

    104.3 Application for Permit . . . . . . . . . . . 22

    104.4 Permit Issuance . . . . . . . . . . . . . . . 23

    104.5 Fees . . . . . . . . . . . . . . . . . . . . . . . . 24

    105.0 Inspections and Testing . . . . . . . . . 24

    105.1 General. . . . . . . . . . . . . . . . . . . . . . 24

    105.2 Required Inspections . . . . . . . . . . . 24

    105.3 Testing of Systems . . . . . . . . . . . . . 25

    105.4 Connection to Service Utilities . . . . 25

    106.0 Violations and Penalties . . . . . . . . . 25

    106.1 General. . . . . . . . . . . . . . . . . . . . . . 25

    106.2 Notices of Correction or Violation . . 25

    106.3 Penalties. . . . . . . . . . . . . . . . . . . . . 26

    106.4 Stop Orders . . . . . . . . . . . . . . . . . . 26

    106.5 Authority to Disconnect Utilities in Emergencies. . . . . . . . . . . . . . . . 26

    106.6 Authority to Condemn. . . . . . . . . . . 26

    107.0 Board of Appeals . . . . . . . . . . . . . . 26

    107.1 General. . . . . . . . . . . . . . . . . . . . . . 26

    107.2 Limitations of Authority . . . . . . . . . . 26

    Table 104.5 Mechanical Permit Fees . . . . . . . . . 27

    CHAPTER 2 DEFINITIONS. . . . . . . . . . . . . . . . . 29

    201.0 General. . . . . . . . . . . . . . . . . . . . . . 31

    201.1 Applicability. . . . . . . . . . . . . . . . . . . 31

    202.0 Definition of Terms . . . . . . . . . . . . . 31

    202.1 General. . . . . . . . . . . . . . . . . . . . . . 31

    xxviii

    CHAPTER 3 GENERAL REGULATIONS. . . . . . 49

    301.0 General. . . . . . . . . . . . . . . . . . . . . . 51

  • CRC § 104.0 High relevance — show source text

    104.0 Permits.

    104.1 Permits Required. It shall be unlawful for a person, firm, or corporation to make an installation, alteration, repair, replacement, or remodel a plumbing system regulated by this code except as permitted in Section 104.2, or to cause the same to be done without first obtaining a separate plumbing permit for each separate building or structure. 104.2 Exempt Work. A permit shall not be required for the following:

    (1) The stopping of leaks in drains, soil, waste, or vent pipe, provided, however, that a trap, drainpipe, soil, waste, or vent pipe become defective, and it becomes necessary to remove and replace the same with new material, the same shall be considered as new work and a permit shall be procured and inspection made as provided in this code.

    (2) The clearing of stoppages, including the removal and reinstallation of water closets, or the repairing of leaks in pipes, valves, or fixtures, provided such repairs do not involve or require the replacement or rearrangement of valves, pipes, or fixtures.

    Exemption from the permit requirements of this code shall not be deemed to grant authorization for work to be done in violation of the provisions of the code or other laws or ordinances of this jurisdiction. 104.3 Application for Permit. To obtain a permit, the applicant shall first file an application therefore in writing on a form furnished by the Authority Having Jurisdiction for that purpose. Such application shall:

    (1) Identify and describe the work to be covered by the permit for which application is made.

    (2) Describe the land upon which the proposed work is to be done by legal description, street address, or similar description that will readily identify and locate the proposed building or work.

    (3) Indicate the use or occupancy for which the proposed work is intended.

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    DIVISION II SCOPE AND ADMINISTRATION

    (4) Be accompanied by construction documents in accordance with Section 104.3.1.

    (5) Be signed by the permittee or the permittee’s authorized agent. The Authority Having Jurisdiction shall be permitted to require evidence to indicate such authority.

    (6) Give such other data and information in accordance with the Authority Having Jurisdiction.

    104.3.1 Construction Documents. Construction documents, engineering calculations, diagrams, and other data shall be submitted in two or more sets, or in a digital format where permitted by the Authority Having Jurisdiction, with each application for a permit. The construction documents, computations, and specifications shall be prepared by, and the plumbing designed by, a registered design professional. Construction documents shall be drawn to scale with clarity to identify that the intended work to be performed is in accordance with the code.

    Exception: The Authority Having Jurisdiction shall be permitted to waive the submission of construction documents, calculations, or other data where the Authority Having Jurisdiction finds that the nature of the work applied for is such that reviewing of construction documents is not necessary to obtain compliance with the code.

    104.3.2 Plan Review Fees. Where a plan or other data is required to be submitted in accordance with Section 104.3.1, a plan review fee shall be paid at the time of submitting construction documents for review.

    The plan review fees for plumbing work shall be determined and adopted by this jurisdiction.

  • CRC § 101.2 High relevance — show source text

    101.2 Scope . . . . . . . . . . . . . . . . . . . . . . . 21

    101.3 Purpose . . . . . . . . . . . . . . . . . . . . . 21

    101.4 Unconstitutional . . . . . . . . . . . . . . . 21

    xxvii

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    TABLE OF CONTENTS

    101.5 Validity . . . . . . . . . . . . . . . . . . . . . . 21

    102.0 Applicability. . . . . . . . . . . . . . . . . . . 21

    102.1 Conflicts Between Codes . . . . . . . . 21

    102.2 Existing Installations . . . . . . . . . . . . 21

    102.3 Maintenance . . . . . . . . . . . . . . . . . . 21

    102.4 Additions, Alterations, Renovations, or Repairs . . . . . . . . . 21

    102.5 Health and Safety . . . . . . . . . . . . . . 21

    102.6 Changes in Building Occupancy. . . 21

    102.7 Moved Structures . . . . . . . . . . . . . . 21

    102.8 Appendices. . . . . . . . . . . . . . . . . . . 21

    103.0 Duties and Powers of the

    Authority Having Jurisdiction . . . . . 22

    103.1 General. . . . . . . . . . . . . . . . . . . . . . 22

    103.2 Liability . . . . . . . . . . . . . . . . . . . . . . 22

    103.3 Applications and Permits . . . . . . . . 22

    103.4 Right of Entry . . . . . . . . . . . . . . . . . 22

    104.0 Permits . . . . . . . . . . . . . . . . . . . . . . 22

    104.1 Permits Required . . . . . . . . . . . . . . 22

    104.2 Exempt Work . . . . . . . . . . . . . . . . . 22

    104.3 Application for Permit . . . . . . . . . . . 22

    104.4 Permit Issuance . . . . . . . . . . . . . . . 23

    104.5 Fees . . . . . . . . . . . . . . . . . . . . . . . . 24

    105.0 Inspections and Testing . . . . . . . . . 24

    105.1 General. . . . . . . . . . . . . . . . . . . . . . 24

    105.2 Required Inspections . . . . . . . . . . . 24

    105.3 Testing of Systems . . . . . . . . . . . . . 25

    105.4 Connection to Service Utilities . . . . 25

    106.0 Violations and Penalties . . . . . . . . . 25

    106.1 General. . . . . . . . . . . . . . . . . . . . . . 25

  • CRC § 2.3 High relevance — show source text

    ** Application or notice to the building official is not required for ordinary repairs to structures, replacement of lamps or the connection of approved portable electrical equipment to approved permanently installed receptacles. Such repairs shall not include the cutting away of any wall, partition or portion thereof, the removal or cutting of any structural beam or loadbearing support, or the removal or change of any required means of egress, or rearrangement of parts of a structure affecting the egress requirements; nor shall ordinary repairs include addition to, alteration of, replacement or relocation of any water supply, sewer, drainage, drain leader, gas, soil, waste, vent or similar piping, electric wiring or mechanical or other work affecting public health or general safety.

    R105.2.3 Public service agencies. A permit shall not be required for the installation, alteration or repair of generation, transmission, distribution, metering or other related equipment that is under the ownership and control of public service agencies by established right.

    R105.3 Application for permit. To obtain a permit, the applicant shall first file an application therefor in writing on a form furnished by the department of building safety for that purpose. Such application shall:

    1. 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 R106.1.
    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.

    R105.3.1 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.

    R105.3.2 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 180 days each. The extension shall be requested in writing and justifiable cause demonstrated.

    R105.4 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

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    DIVISION II SCOPE AND ADMINISTRATION

    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.

  • CRC § 104.4.3.1 High relevance — show source text

    DIVISION II SCOPE AND ADMINISTRATION

    made or will be made in the original construction documents for such work, and provided further that such suspension or abandonment has not exceeded 1 year. 104.4.3.1 Expiration. [BSC] On or after January 1, 2019, every permit issued shall become invalid unless the work on the site authorized by such per- mit 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 writ- ing, 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). 104.4.4 Extension. A permittee holding an unexpired permit shall be permitted to apply for an extension of the time within which work shall be permitted to commence under that permit where the permittee is unable to commence work within the time required by this section. The Authority Having Jurisdiction shall be permitted to extend the time for action by the permittee for a period not exceeding 180 days upon written request by the permittee showing that circumstances beyond the control of the permittee have prevented action from being taken. No permit shall be extended more than once. In order to renew action on a permit after expiration, the permittee shall pay a new full permit fee. 104.4.5 Suspension or Revocation. The Authority Having Jurisdiction shall be permitted, with written notification, to suspend or revoke a permit issued under the provisions of this code where the permit is issued in error or on the basis of incorrect information supplied or in violation of other ordinance or regulation of the jurisdiction.

    104.4.6 Retention of Plans. One set of approved construction documents and computations shall be retained by the Authority Having Jurisdiction until final approval of the work is covered therein.

    One set of approved construction documents, computations, and manufacturer’s installation instructions shall be returned to the applicant, and said set shall be kept on the site of the building or work at times during which the work authorized thereby is in progress.

    104.5 Fees. Fees shall be assessed in accordance with the provisions of this section and as set forth in the fee schedule, Table 104.5. The fees are to be determined and adopted by this jurisdiction. 104.5.1 Work Commencing Before Permit Issuance. Where work for which a permit is required by this code has been commenced without first obtaining said permit, a special investigation shall be made before a permit is issued for such work. 104.5.2 Investigation Fees. An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. The investigation fee shall be equal to the amount of the permit fee

    that is required by this code if a permit were to be issued. The payment of such investigation fee shall not exempt a person from compliance with other provisions of this code, nor from a penalty prescribed by law. 104.5.3 Fee Refunds. The Authority Having Jurisdiction shall be permitted to authorize the refunding of a fee as follows:

    (1) The amount paid hereunder that was erroneously paid or collected.

Frequently asked questions

Do I need a permit to replace a kitchen countertop?

No permit is generally required for finish work such as replacing cabinets or countertops under § R105.2, provided you are not altering plumbing, structural elements, or regulated systems. Confirm no plumbing changes are involved.

Is painting the exterior of my house permit‑exempt?

Yes. Painting, papering, tiling, carpeting and similar finish work are listed as exempt in § R105.2, but work that affects structure or systems is not exempt.

If I start work before getting a permit, what happens?

If you commence work that requires a permit without one, you may be subject to investigation fees in addition to permit fees and possible penalties; see § R108.6. The building official can require corrective actions.

Is an above‑ground inflatable pool (2' deep) exempt?

Prefabricated/above‑ground pools accessory to a Group R‑3 occupancy that are less than 24 inches deep and meet capacity/install conditions are listed as exempt in § R105.2. Verify full conditions (volume, installation).

Who decides if an exempt item still needs a permit locally?

The local building official has authority to require permits or stipulate conditions where public safety would be at risk; exemptions do not override local rules. See § R105.2 and the building official authority in § R105.3.

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