Sections 903.1 through 903.2.10.2 of Chapter 9 of the Fire Code of Santa Cruz County are deleted and replaced to read as follows:
903.1 - General. Automatic sprinkler systems shall comply with this section.
903.1.1 - Alternative protection. Alternative automatic fire-extinguishing systems complying with Section 904 shall be permitted in lieu of automatic sprinkler protection where recognized by the applicable standard and approved by the fire code official.
903.2 - Where required. Approved automatic sprinkler systems in new buildings and structures shall be provided in the locations described in this section.
903.2.1 - New structures. An automatic fire sprinkler system shall be provided in all new occupancies as defined in Chapter 3 of the California Building Code, regardless of type of construction and/or floor area, unless otherwise pre-empted by the
California Health and Safety Code. Any occupancy not specifically mentioned shall be included in the group that it most nearly resembles based on the proposed life and fire hazard.
Exceptions:
1. | Private garages, carports, workshops, office, art studio, and/or sheds not more than 1,000 square feet (93 m2) of total floor area shall not require fire sprinklers where they are detached and separate from other structures and provided with exterior wall and opening protection as per the California Building Code. |
2. | Sheds exceeding 1,000 square feet, (93 m2) but not exceeding 3,000 square feet (278 m2) shall not require fire sprinklers at the discretion of the fire chief when the applicant demonstrates that the applicant's proposal does not increase the fire hazard or fire load. |
3. | Agricultural buildings as defined in Appendix Chapter C, of the California Building Code having a clear unobstructed side yard exceeding 60 feet (18,280 mm) in all directions, not exceeding 25 feet (7620 mm) in height and located within an Agricultural zoned district, as defined in the Santa Cruz County Planning Code. |
| a. | Not exceeding 2,000 square feet (186 m2) or as exempted by the fire chief, shall not require fire sprinklers. |
| b. | Exceeding 2,000 square feet (186 m2) but not exceeding 5,000 square feet, shall not require fire sprinklers at the discretion of the fire chief when the applicant demonstrates the applicant's proposal does not increase the fire hazard or fire load. |
| c. | Greenhouses of non-combustible construction. |
4. | Group B and Group M Occupancies not more than 500 square feet (46.5 m2) shall not require fire sprinklers where they are detached and separate from other structures and provided with exterior wall and opening protection as per the California Building Code, Table 508.4. |
5. | For public school state-funded construction projects see CFC Section 903.2.19. |
7.92.903.2.1.4 - Group R. An automatic sprinkler system installed in accordance with Section 903.3 shall be provided throughout all buildings with a Group R fire area.
Exceptions:
1. | Existing Group R-3 occupancies converted to Group R-3.1 occupancies not housing bedridden clients, not housing non-ambulatory clients above the first floor, and not housing clients above the second floor. |
2. | Existing Group R-3 occupancies converted to Group R-3.1 occupancies housing only one bedridden client and complying with section 425.8.3.3 of the California Building Code. |
3. | Pursuant to Health and Safety Code Section 13113 occupancies housing ambulatory children only, none of whom have mental health disorders or intellectual disabilities, and the buildings or portions thereof in which such children are housed are not more than two stories in height, and buildings or portions thereof housing such children have an automatic fire alarm system activated by approved smoke detectors. |
4. | Pursuant to Health and Safety Code Section 13143.6 occupancies licensed for protective social care which house ambulatory clients only, none of whom is a child (under the age of 18 years), or who is elderly (65 years of age or over). |
When not used in accordance with Section 504.2 or 506.3 of the California Building Code an automatic sprinkler system installed in accordance with Section 903.3.1.2 shall be allowed in Group R-2.1 occupancies.
7.92.903.2.1.5 - Group R-3 congregate residences. An automatic sprinkler system installed in accordance with Section 903.3.1.3 shall be permitted in Group R-3 congregate living facilities with 16 or fewer residents.
7.92.903.2.1.6 - Care facilities. An automatic sprinkler system installed in accordance with Section 903.3.1.3 shall be permitted in care facilities with 5 or fewer individuals in a single-family dwelling.
7.92.903.2.2 - Existing buildings and structures except for one- and two-family dwellings. An automatic sprinkler system shall be installed in existing buildings and structures, except one- and two-family dwellings, after the effective date of this code, when a building permit is issued to allow additions to be made, as follows:
1. | For existing buildings less than 6,000 square feet in gross floor area when an addition to the building causes the structure to exceed 6,000 square feet, the entire structure shall be provided with an automatic sprinkler system. |
2. | For existing buildings larger than 6,000 square feet in gross floor area when an addition is equal to or greater than 10% of the existing square footage or when extensive renovation or remodeling is done to more than 50% of the gross floor area, the entire structure shall be provided with an automatic sprinkler system. |
For the purposes of this section, extensive renovation or remodeling shall be defined as any change, addition or modification in construction or occupancy or structural repair or change in primary function to an existing structure made by, on behalf of or for the use of a public accommodation or commercial facility that affects or could affect the usability of the building or facility or part thereof. Alterations include, but are not limited to, remodeling, renovation rehabilitation, reconstruction, historic restoration, changes or rearrangement of the structural parts or elements, and changes or rearrangement in the plan configuration of walls and full-height partitions.
All new work performed in alterations and/or repairs to existing structures shall comply with the current provisions of this Chapter. When alterations and/or repairs result in the removal, alteration, modification, replacement and/or repair of fifty percent or more of the external walls of a building, or result in the removal, modification, replacement and/or repair of fifty percent or more of the existing internal structural and/or non-structural framework, independently or in combination thereof, within a five year period, the entire building shall be made to conform to the current provisions of this chapter. The determination under this section of the requirement for upgrading any existing structure to full conformance with current provisions of this Chapter shall be at the sole discretion of the Fire Code Official.
Exceptions to Section 7.92.903.2.2 (1 and 2)
1. | Group A2. An automatic sprinkler system shall be provided throughout stories containing Group A-2 occupancies and throughout all stories from the Group A-2 occupancy to and including the levels of exit discharge serving that occupancy where one of the following conditions exists: |
| a) | The fire area exceeds 5,000 square feet (464 m2). |
| b) | The fire area has an occupant load of 100 or more. |
| c) | The fire area is located on a floor other than a level of exit discharge serving such occupancies. |
| d) | The structure exceeds 5,000 square feet (465 m2), contains more than one fire area containing a Group A-2 occupancy, and is separated into two or more buildings by fire walls of not less than 4-hour fire-resistance rating without openings. |
2. | Group A-5. Occupancies exceeding 1,000 square feet in the following areas: concession stands, retail areas, press boxes and other accessory use areas shall have an automatic sprinkler system installed. |
3. | Assembly occupancies on roofs. Where an occupied roof has an assembly occupancy with an occupant load exceeding 100 for Group A-2 and 300 for other Group A occupancies, all floors between the occupied roof and the level of exit discharge shall be equipped with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2. |
| Exception: Open Parking garages of Type I or Type II construction. |
4. | Multiple fire areas of Group A-1, A-2, A-3 or A-4 occupancies share exit or exit access components and the combined occupant load of these fire areas is 300 or more. |
5. | Group B. Regardless of square footage, an automatic sprinkler system shall be provided for Group B occupancies as follows: |
| a) | Ambulatory Care Facilities. An automatic sprinkler system shall be installed throughout the entire floor containing an ambulatory care facility where either of the following conditions exist at any time: |
| | i. | Four or more care recipients are incapable of self-preservation. |
| | ii. | One or more care recipients that are incapable of self-preservation are located at other than the level of exit discharge serving such a facility. |
| | | In buildings where ambulatory care is provided on levels other than the level of exit discharge, an automatic sprinkler system shall be installed throughout the entire floor as well as all floors below where such care is provided, and all floors between the level of ambulatory care and the nearest level of exit discharge, the level of exit discharge, and all floors below the level of exit discharge. |
| | | Exception: Floors classified as an open parking garage are not required to be sprinklered. |
| b) | Laboratories involving research and development or testing. An automatic sprinkler system shall be installed throughout the fire areas utilized for the research and development or testing of lithium-ion or lithium metal batteries. |
6. | Group F-1 occupancies. An automatic sprinkler system shall be provided throughout all buildings containing a Group F-1 occupancy where one of the following conditions exists: |
| a) | A Group F-1 fire area exceeds 6,000 square feet (1115 m2). |
| b) | A Group F-1 fire area is located more than three stories above grade plane. |
| c) | The combined area of all Group F-1 fire areas on all floors, including any mezzanines, exceeds 5,000 square feet (2230 m2). |
| | Group F-1 Woodworking Operations. An automatic sprinkler system shall be provided throughout all Group F-1 occupancy fire areas that contain woodworking operations in excess of 2,500 square feet (232 m2) in area that generate finely divided combustible waste or use finely divided combustible materials. [SFM] A fire wall of less than 4-hour fire-resistance rating without openings, or any fire wall with openings, shall not be used to establish separate fire areas. |
| | Group F-1 Distilled Spirits. An automatic sprinkler system shall be provided throughout a Group F-1 fire area used for the manufacture of distilled spirits. |
| | Group F-1 Upholstered Furniture or Mattresses. An automatic sprinkler system shall be provided throughout a Group F-1 fire area that exceeds 2,500 square feet (232 m2) used for the manufacture of upholstered furniture or mattresses. |
7. | Group H occupancies shall be provided with an automatic sprinkler system. |
8. | Group I occupancy fire areas shall be provided with an automatic sprinkler system. |
| Exceptions: |
| a) | Those areas exempted by Section 407.6 of the California Building Code. |
| b) | Group I-2 occupancies, or any alterations thereto, located in Type IA construction in existence on or before March 4, 1972 as required in California Health and Safety Code Section 13113(d). |
9. | Group I-2 occupancies. An existing, unsprinklered Group I-2, nurses' stations open to fire-resistive exit access corridors shall be protected by an automatic sprinkler system located directly above the nurses' station. It shall be permitted to connect the automatic sprinkler system to the domestic water service. |
10. | Group I-3 occupancies. Every building, or portion thereof, where inmates or persons are in custody or restrained shall be protected by an automatic sprinkler system conforming to NFPA 13. The main sprinkler control valve or valves and all other control valves in the system shall be locked in the open position and electrically supervised so that at least an audible and visual alarm will sound at a constantly attended location when valves are closed. The sprinkler branch piping serving cells may be embedded in the concrete construction. |
11. | Group M occupancy used for the display and sale of upholstered furniture or mattresses exceeds 5,000 square feet. |
12. | Group M. An automatic sprinkler system shall be provided throughout buildings containing a Group M occupancy where one of the following conditions exists: |
| a) | A Group M fire area exceeds 12,000 square feet (1115 m2). |
| b) | A Group M fire area is located more than three stories above grade plane. |
| c) | The combined area of all Group M fire areas on all floors, including any mezzanines, exceeds 24,000 square feet (2230 m2). |
| d) | The structure exceeds 24,000 square feet (465 m2), contains more than one fire area containing a Group M occupancy, and is separated into two or more buildings by fire walls of not less than 4-hour fire-resistance rating without openings. |
13. | Group S-1 occupancies used for the storage of commercial motor vehicles where the fire area exceeds 5,000 square feet. |
14. | Group S-1 occupancies exceeding 2,500 square feet used for the storage of upholstered furniture or mattresses shall have an automatic sprinkler system installed. |
15. | Group S-1 fire areas exceeding 5,000 square feet used for the repair of commercial motor vehicles. |
16. | Structures where the area for the storage of tires exceeds 20,000 cubic feet shall be equipped throughout with an automatic fire sprinkler system in accordance with Section 903.3.1.1. |
17. | Group U occupancies exceeding 1,000 square feet shall have an automatic sprinkler system installed. Group U occupancies not exceeding 1,000 square feet are exempt where they are detached and separate from other structures and provided with exterior wall and opening protection as per the California Building Code. |
18. | Sheds exceeding 1,000 square feet but not exceeding 3,000 square feet shall not require fire sprinklers at the discretion of the fire chief when the applicant demonstrates that the applicant's proposal does not increase the fire hazard or fire load. |
19. | Agricultural buildings as defined in Appendix Chapter C, of the California Building Code having a clear unobstructed side yard exceeding 60 feet (18,280 mm) in all directions, not exceeding 25 feet (7620 mm) in height and located within an Agricultural zoned district, as defined in the Santa Cruz County Planning Code. |
| a) | Not exceeding 2,000 square feet (186 m2) or as exempted by the fire chief, shall not require fire sprinklers. |
| b) | Exceeding 2,000 square feet (186 m2) but not exceeding 5,000 square feet, shall not require fire sprinklers at the discretion of the fire chief when the applicant demonstrates the applicant's proposal does not increase the fire hazard or fire load. |
| c) | Greenhouses of non-combustible construction shall not require fire sprinklers. |
20. | Any alteration and/or repair within a building that contains an automatic fire sprinkler system requires that the automatic fire sprinkler system be extended/modified to the area of proposed work, thus, creating fire sprinkler protection throughout the entire building. |
21. | Any change in use or occupancy creating a more hazardous fire/life safety condition, as determined by the Fire Chief, requires that the entire structure be provided with an automatic sprinkler system. |
22. | Any combination of addition, alteration, repair and/or change of use shall comply with Sections 903.2.11 through 903.6. |
Exceptions to Section 7.92.903.2.2: |
1. | Seismic or Accessibility improvements. |
2. | Any exemption otherwise allowable under the Fire Code, if in the discretion of the Fire Chief, the safety of the public is not compromised. |
3. | Exterior improvements and work not requiring permits as provided in the Building Code. |
4. | Work requiring only a mechanical, electrical, plumbing and/or demolition permit. |
7.92.903.2.3 - Existing one- and two-family dwellings. An automatic sprinkler system shall be installed in existing one- and two-family dwellings, after the effective date of this code, when a building permit is issued to allow additions to be made, as follows:
1. | Any addition is made which increases the total existing square footage by 50% or more. |
| Exception: Construction for the purpose of either an ADU or JADU. |
2. | The proposed total floor area exceeds the available fire flow as specified in Section 507.1 or APPENDIX B. |
3. | Any addition to a one- or two-family dwelling that contains an automatic fire sprinkler system requires that the automatic fire sprinkler system be extended/modified to the area of proposed work, thus, creating fire sprinkler protection throughout the entire dwelling. |
Exceptions to Section 7.92.903.2.3:
1. | Additions of 500 square feet or less when the proposed total floor area does not exceed the available fire flow are exempt from fire sprinklers unless the dwelling is already protected by a fire sprinkler system. |
Section 7.92.903.2.4 — is added — Accessory Dwelling Unit (ADU)
Section 903.2.4 of Chapter 9 of the Fire Code of the County of Santa Cruz is added to read as follows:
Accessory Dwelling Unit(s). The following is included for clarification of the requirements for newly constructed accessory dwelling units. All newly constructed ADUs are required to comply with the standards for fire protection such as water supply and fire department access contained in Chapter 5 of this code.
1. Accessory Dwelling Units constructed on lots with an existing sprinklered primary residence:
a. Attached to main residence — fire sprinklers required.
b. Detached from main residence - fire sprinklers required.
2. Accessory Dwelling Units constructed on lots with an existing non-sprinklered primary residence:
a. Fire sprinklers not required.
3. Accessory Dwelling Units are required to comply with the standards for fire protection such as water supply and fire department access set forth in Chapter 5 of this code.
a. Water supply for fire protection shall be a minimum of 1,000 gpm for 60 minutes as required in § 507.3 and Appendix B Table 105.1(1) of this code.
b. Access for new ADUs and JADUs shall be within 150 feet of all portions of the structure in accordance with § 503.1.1 of this code.
Where a newly constructed accessory dwelling unit does not meet these fire protection standards, an automatic residential sprinkler system may be utilized as an alternative to items 3(a) and, or 3(b) above.
(Ord. 5319 § 2, 2019; Ord. 5415 § 1, 2022; Ord. 5503, 12/9/2025)