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Santa Cruz County · Building on your lot

Building on your lot in Santa Cruz County

In unincorporated Santa Cruz County, the county code sets its own limits on accessory structures, home businesses, pool barriers and parking on county roads. It also has a streamlined permit for small rooftop solar and EV chargers, and protects significant trees in the Coastal Zone.

Key points

  • Accessory height: County rule: inside the urban and rural services lines, detached garages are limited to 16 feet and other accessory structures to 13 feet.
  • Accessory size: County rule: accessory structures up to 640 square feet inside the services lines, or 1,000 outside, need only a building permit.
  • Home businesses: County rule: a home business may use at most 35% of the floor area and 2,000 square feet without a conditional use permit.
  • Pool barriers: County rule: home pool barriers must be at least 60 inches high, with self-closing, self-latching gates that swing away from the pool.
  • Road parking: County rule: any vehicle may stay on a County-maintained road for at most 72 hours.
  • Trees: County rule: in the Coastal Zone, removing a significant tree or trimming more than one-third of its foliage needs approval.

Each rule below is marked Santa Cruz County code or CA state law and links to the section it comes from (checked October 2026). General information, not legal advice.

Santa Cruz County's code applies in the unincorporated areas of the county. Cities in Santa Cruz County have their own codes and their own pages.

Fences and walls

Santa Cruz County code What Santa Cruz County's code adds
Permit
  • Yes. A permit is required.
    Applies: Hedges, plantings, fences or similar structures in a public right-of-way.
    § 9.70.520 · code text
    No hedge, shrub or other planting whatever, or fence or similar structure, shall be planted, erected or maintained in a right-of-way without a permit.

Sheds, garages and other accessory structures

Santa Cruz County code What Santa Cruz County's code adds
Maximum height
  • At most 16 feet high.
    Applies: Detached non-habitable garages in residential zones inside the urban and rural services lines. A taller garage needs a variance with a public hearing.
    § 13.10.611 · code text
    Table 13.10.611-2: Table 13.10.611-2: Permit Requirements, Size, Height, Stories, Total Number of, and Locational Regulations for Accessory Structures in Residential Zone Districts Note: In the Coastal Zone, a coastal development permit may be required per Chapter 13.20 SCCC. For regulations governing tiny homes, see SCCC § 13.10.680 and for ADUs, see SCCC § 13.10.681 . | | Non-Habitable | Habitable | | --- | --- | --- | | Height limit | Within the urban and rural services lines (USL/RSL): Detached garages: 16 feet All other accessory structures: 13 feet 1 Attached garages: see zone district height limit Outside the USL/RSL: see zone district height limit | Within the USL/RSL: 13 feet Outside the USL/RSL: see zone district height limit In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681 | | Size limit | Within the USL/RSL: 640 square feet Outside the USL/RSL: 1,000 square feet | Within the USL/RSL: 640 square feet Outside the USL/RSL: 1,000 square feet | | Permit required | Within the USL/RSL: building permit only for structures meeting height and size limits 1 Outside the USL/RSL: building permit only for up to 1,000-square-foot size, in compliance with zone district site development standards 1 | Within the USL/RSL: building permit only for structures meeting height and size limits 1 Outside the USL/RSL: building permit only for up to 1,000-square-foot size, in compliance with zone district site development standards 1 In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681 | | Permit required if exceeds size limits | Administrative site development permit | Administrative site development permit | | Permit required if exceeds maximum height or story limits | Variance (public hearing required) | Variance (public hearing required) | | Number of accessory structures allowed | No limit, if in compliance with the site regulations of the zone district; however, limits based on parcel size if accessory structure contains plumbing fixtures 2 | One with building permit only; two with conditional use and site development permit; more than two with Planning Commission public hearing and approval, with limits on plumbing fixtures 2 | | Locational restrictions related to the distance from the main residence and access to accessory structures | None, if in compliance with the site regulations of the zone district | In addition to the site regulations of the zone district, shall be no more than 100 feet from the main residence, shall not be accessed by a separate driveway or right-of-way, nor constructed on a slope greater than 30 percent, unless an administrative site development permit is obtained, or as otherwise permitted by County Code/Public Works Director | | 1. Non-habitable structures that do not exceed 120 square feet in size and a height of 10 feet above grade (as defined by the Zoning Ordinance) do not require a building permit. However, a plumbing or electrical permit is required for any plumbing fixtures and electricity, and a zoning permit may be required pursuant to Tables 13.10.611-1 and 13.10.611-2. | | --- | | 2. On parcels less than 10 acres, a maximum of one habitable or non-habitable accessory structure with any combination of toilet, lavatory sink, shower, and/or bathtub may be permitted consistent with Tables 13.10.611-1 and 13.10.611-2. On parcels 10 acres or larger, a maximum of two accessory structures with any combination of toilet, lavatory sink, shower, and/or bathtub may be permitted consistent with Tables 13.10.611-1 and 13.10.611-2. When two or more habitable accessory structures exist on a parcel, the second habitable accessory structure and any additional habitable accessory structures shall be considered bedrooms for the purpose of calculating fees and determining parking requirements. ADUs are regulated by SCCC § 13.10.681 . |
  • At most 13 feet high.
    Applies: Non-habitable accessory structures other than garages, in residential zones inside the services lines. Outside them, the zone height limit applies.
    § 13.10.611 · code text
    Within the urban and rural services lines (USL/RSL): Detached garages: 16 feet All other accessory structures: 13 feet 1 Attached garages: see zone district height limit Outside the USL/RSL: see zone district height limit
  • At most 13 feet high.
    Applies: Habitable accessory structures in residential zones inside the services lines. Outside them, the zone height limit applies.
    § 13.10.611 · code text
    Within the USL/RSL: 13 feet Outside the USL/RSL: see zone district height limit In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681
Size or lot coverage
  • Up to 640 square feet with only a building permit.
    Applies: Residential accessory structures inside the services lines. Larger needs an administrative site development permit.
    § 13.10.611 · code text
    Table 13.10.611-2: Table 13.10.611-2: Permit Requirements, Size, Height, Stories, Total Number of, and Locational Regulations for Accessory Structures in Residential Zone Districts Note: In the Coastal Zone, a coastal development permit may be required per Chapter 13.20 SCCC. For regulations governing tiny homes, see SCCC § 13.10.680 and for ADUs, see SCCC § 13.10.681 . | | Non-Habitable | Habitable | | --- | --- | --- | | Height limit | Within the urban and rural services lines (USL/RSL): Detached garages: 16 feet All other accessory structures: 13 feet 1 Attached garages: see zone district height limit Outside the USL/RSL: see zone district height limit | Within the USL/RSL: 13 feet Outside the USL/RSL: see zone district height limit In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681 | | Size limit | Within the USL/RSL: 640 square feet Outside the USL/RSL: 1,000 square feet | Within the USL/RSL: 640 square feet Outside the USL/RSL: 1,000 square feet | | Permit required | Within the USL/RSL: building permit only for structures meeting height and size limits 1 Outside the USL/RSL: building permit only for up to 1,000-square-foot size, in compliance with zone district site development standards 1 | Within the USL/RSL: building permit only for structures meeting height and size limits 1 Outside the USL/RSL: building permit only for up to 1,000-square-foot size, in compliance with zone district site development standards 1 In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681 | | Permit required if exceeds size limits | Administrative site development permit | Administrative site development permit | | Permit required if exceeds maximum height or story limits | Variance (public hearing required) | Variance (public hearing required) | | Number of accessory structures allowed | No limit, if in compliance with the site regulations of the zone district; however, limits based on parcel size if accessory structure contains plumbing fixtures 2 | One with building permit only; two with conditional use and site development permit; more than two with Planning Commission public hearing and approval, with limits on plumbing fixtures 2 | | Locational restrictions related to the distance from the main residence and access to accessory structures | None, if in compliance with the site regulations of the zone district | In addition to the site regulations of the zone district, shall be no more than 100 feet from the main residence, shall not be accessed by a separate driveway or right-of-way, nor constructed on a slope greater than 30 percent, unless an administrative site development permit is obtained, or as otherwise permitted by County Code/Public Works Director | | 1. Non-habitable structures that do not exceed 120 square feet in size and a height of 10 feet above grade (as defined by the Zoning Ordinance) do not require a building permit. However, a plumbing or electrical permit is required for any plumbing fixtures and electricity, and a zoning permit may be required pursuant to Tables 13.10.611-1 and 13.10.611-2. | | --- | | 2. On parcels less than 10 acres, a maximum of one habitable or non-habitable accessory structure with any combination of toilet, lavatory sink, shower, and/or bathtub may be permitted consistent with Tables 13.10.611-1 and 13.10.611-2. On parcels 10 acres or larger, a maximum of two accessory structures with any combination of toilet, lavatory sink, shower, and/or bathtub may be permitted consistent with Tables 13.10.611-1 and 13.10.611-2. When two or more habitable accessory structures exist on a parcel, the second habitable accessory structure and any additional habitable accessory structures shall be considered bedrooms for the purpose of calculating fees and determining parking requirements. ADUs are regulated by SCCC § 13.10.681 . |
  • Up to 1,000 square feet with only a building permit.
    Applies: Outside the services lines, subject to zone standards. Larger needs an administrative site development permit.
    § 13.10.611 · code text
    Table 13.10.611-2: Table 13.10.611-2: Permit Requirements, Size, Height, Stories, Total Number of, and Locational Regulations for Accessory Structures in Residential Zone Districts Note: In the Coastal Zone, a coastal development permit may be required per Chapter 13.20 SCCC. For regulations governing tiny homes, see SCCC § 13.10.680 and for ADUs, see SCCC § 13.10.681 . | | Non-Habitable | Habitable | | --- | --- | --- | | Height limit | Within the urban and rural services lines (USL/RSL): Detached garages: 16 feet All other accessory structures: 13 feet 1 Attached garages: see zone district height limit Outside the USL/RSL: see zone district height limit | Within the USL/RSL: 13 feet Outside the USL/RSL: see zone district height limit In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681 | | Size limit | Within the USL/RSL: 640 square feet Outside the USL/RSL: 1,000 square feet | Within the USL/RSL: 640 square feet Outside the USL/RSL: 1,000 square feet | | Permit required | Within the USL/RSL: building permit only for structures meeting height and size limits 1 Outside the USL/RSL: building permit only for up to 1,000-square-foot size, in compliance with zone district site development standards 1 | Within the USL/RSL: building permit only for structures meeting height and size limits 1 Outside the USL/RSL: building permit only for up to 1,000-square-foot size, in compliance with zone district site development standards 1 In any area: tiny homes subject to SCCC § 13.10.680 and ADUs subject to SCCC § 13.10.681 | | Permit required if exceeds size limits | Administrative site development permit | Administrative site development permit | | Permit required if exceeds maximum height or story limits | Variance (public hearing required) | Variance (public hearing required) | | Number of accessory structures allowed | No limit, if in compliance with the site regulations of the zone district; however, limits based on parcel size if accessory structure contains plumbing fixtures 2 | One with building permit only; two with conditional use and site development permit; more than two with Planning Commission public hearing and approval, with limits on plumbing fixtures 2 | | Locational restrictions related to the distance from the main residence and access to accessory structures | None, if in compliance with the site regulations of the zone district | In addition to the site regulations of the zone district, shall be no more than 100 feet from the main residence, shall not be accessed by a separate driveway or right-of-way, nor constructed on a slope greater than 30 percent, unless an administrative site development permit is obtained, or as otherwise permitted by County Code/Public Works Director | | 1. Non-habitable structures that do not exceed 120 square feet in size and a height of 10 feet above grade (as defined by the Zoning Ordinance) do not require a building permit. However, a plumbing or electrical permit is required for any plumbing fixtures and electricity, and a zoning permit may be required pursuant to Tables 13.10.611-1 and 13.10.611-2. | | --- | | 2. On parcels less than 10 acres, a maximum of one habitable or non-habitable accessory structure with any combination of toilet, lavatory sink, shower, and/or bathtub may be permitted consistent with Tables 13.10.611-1 and 13.10.611-2. On parcels 10 acres or larger, a maximum of two accessory structures with any combination of toilet, lavatory sink, shower, and/or bathtub may be permitted consistent with Tables 13.10.611-1 and 13.10.611-2. When two or more habitable accessory structures exist on a parcel, the second habitable accessory structure and any additional habitable accessory structures shall be considered bedrooms for the purpose of calculating fees and determining parking requirements. ADUs are regulated by SCCC § 13.10.681 . |
  • Less than 100 square feet.
    Applies: Non-habitable storage or parking structure in a coastal high-hazard area, with breakaway walls. Build outside the flood area if possible.
    § 16.13.500 · code text
    If built in coastal high hazard areas, be less than 100 square feet in area and constructed with breakaway walls.
No permit needed up to
  • No building permit up to 120 square feet.
    Applies: Non-habitable, at most 10 feet above grade. Plumbing and electrical permits still apply; a zoning permit may be needed.
    § 13.10.611 · code text
    Non-habitable structures that do not exceed 120 square feet in size and a height of 10 feet above grade (as defined by the Zoning Ordinance) do not require a building permit.

Running a business from home

Santa Cruz County code What Santa Cruz County's code adds
Space used
  • At most 35% of the home's floor area, and no more than 2,000 square feet in total.
    Applies: Unless a conditional home occupation use permit is obtained.
    § 13.10.613 · code text
    The home occupation shall be limited for the gross parcel area, to be measured based on 35% of the total floor area of the single-family dwelling(s), and the floor area of the home occupation cannot exceed 2,000 square feet in total area, unless a conditional home occupation use permit is obtained.
Customer visits
  • No more than 2 clients at a time.
    Applies: Personal services or training, unless a conditional home occupation use permit is obtained.
    § 13.10.613 · code text
    A home occupation involving personal services (e.g., hairdresser, barber shop, personal fitness trainer) or training (e.g., swimming lessons, musical instrument lessons, yoga classes, cooking classes, art lessons) may involve no more than two persons at a time, unless a conditional home occupation use permit is obtained.
Employees
  • Up to 2 nonresident employees without a conditional home occupation permit.
    Applies: Run mainly by full-time residents. A conditional permit can allow up to 5 more regular employees.
    § 13.10.613 · code text
    The home occupation shall be carried out primarily by one or more full-time inhabitants of the dwelling, with one or two employees who are not inhabitants also allowed to work at the home occupation site.
Permit
  • A conditional home occupation use permit is required.
    Applies: For a sign over 1 square foot, or outdoor storage, operations or activity. Outdoor use must be reasonably screened.
    § 13.10.613 · code text
    No larger sign, and no outdoor storage, operations, or activity is allowed unless a conditional home occupation use permit is obtained, in which case the allowed outdoor use shall be reasonably screened from the street and adjoining properties.
  • A conditional home occupation use permit is required.
    Applies: Selling goods not made or assembled entirely on site, unless sold by mail order.
    § 13.10.613 · code text
    Sales of goods are allowed only if the goods to be sold are produced or assembled entirely on the premises, or if sales are by mail order, unless a conditional home occupation use permit is obtained.
  • A conditional home occupation use permit is required.
    Applies: More than 1 business vehicle, or one larger than a 3/4-ton pickup truck.
    § 13.10.613 · code text
    Only one vehicle, which is no larger than a three-quarter-ton pickup truck, in addition to other vehicles equal to the standard number of required parking spaces for the subject home, may be used for the home occupation unless a conditional home occupation use permit is obtained.
  • A conditional home occupation use permit and other needed permits are required.
    Applies: Handling hazardous materials or any amount of an acutely hazardous substance.
    § 13.10.613 · code text
    Home occupations involving the handling of hazardous materials, as defined by SCCC § 7.100.020, or of any amount of an acutely hazardous substance, as defined by State or Federal law, shall require a conditional home occupation use permit and approval of other applicable permits such as those issued by the County's Environmental Health Services Division.
  • A conditional home occupation use permit.
    Applies: Needed for outdoor unenclosed activities; otherwise the business must be inside the home or an allowed accessory structure.
    § 13.10.613 · code text
    The home occupation shall be carried on entirely within the dwelling, or in an accessory structure normally allowed in the zone district in which the site is located, unless a conditional home occupation use permit is obtained to authorize outdoor unenclosed activities.
Businesses not allowed
  • Commercial weddings and similar celebrations, community events, and fundraisers
    § 13.10.613 · code text
    Commercial weddings and similar celebrations, community events, and fundraisers are not eligible to be permitted as home occupations.
  • A commercial firewood operation where wood is cut, processed, and/or stored for sale to the public
    § 13.10.613 · code text
    A commercial firewood operation, where wood is cut, processed, and/or stored for sale to the public, is prohibited as a home occupation.

RV and boat parking

Santa Cruz County code What Santa Cruz County's code adds
Parking on the street
  • No more than 72 hours.
    Applies: Applies to any vehicle on a County-maintained road.
    § 9.70.610 · code text
    No person who owns or has possession, custody or control of any vehicle, shall park such vehicle upon any County-maintained road for more than a consecutive period of 72 hours.

Solar panels and EV chargers

Santa Cruz County code What Santa Cruz County's code adds
EV charger permit
  • Streamlined permit: submit the checklist application, documents, and required permit processing and inspection fees.
    Applies: Applies to electric vehicle charging stations.
    § 12.10.322 · code text
    Applicants must submit the completed checklist application and associated documentation to the Department with any required permit processing and inspection fees.
  • Administrative approval and all required permits.
    Applies: Complete checklist application and documents. The charger may not be turned on or used until county inspection approval.
    § 12.10.322 · code text
    Upon confirmation by the Building Official that the checklist application and supporting documentation are complete, the Building Official shall, consistent with Government Code Section 65850.7, administratively approve the application and issue all required permits or authorizations.
  • Standard building permit plan review applies.
    Applies: Applies to applications that do not meet the checklist and are not resubmitted to meet it.
    § 12.10.322 · code text
    Applications that do not satisfy the requirements in the checklist will not be accepted for the streamlined process and applicants will be required to either resubmit an application that does satisfy the requirements or apply for plan review under the standard building permit process.
Solar permit process
  • Only 1 inspection. If the system fails, another inspection is allowed with added fees.
    Applies: Applies to small home rooftop solar systems eligible for the streamlined process.
    § 12.10.321 · code text
    For a small residential rooftop solar energy system eligible for the streamlined process described in this chapter, only one inspection shall be provided for and the inspection will be completed in a timely manner.
  • Streamlined permit: submit the County checklist application with documents and any permit and inspection fees.
    Applies: Rooftop solar on a permitted single-family home or duplex, at most 10 kW AC photovoltaic or 30 kW thermal, within the zone height limit.
    § 12.10.321 · code text
    The County's checklist application will include all requirements with which small rooftop solar energy systems shall comply in order to be eligible for the streamlined permitting process. The checklist application shall be published on the Department's website.
  • Administrative approval and all required permits.
    Applies: Complete checklist application for a permitted single-family or duplex rooftop system within size and height limits. Grid connection needs separate county and utility approval.
    § 12.10.321 · code text
    Upon confirmation by the Building Official that the checklist application and supporting documentation are complete, the Building Official shall administratively approve the application and issue all required permits or authorizations.
Solar height and setbacks
  • The panel or array may not exceed the zone district's maximum height.
    Applies: Required for small home rooftop solar to qualify for the streamlined permit.
    § 12.10.321 · code text
    A solar panel or module array that does not exceed the maximum height for the zone district.

Tree removal

Santa Cruz County code What Santa Cruz County's code adds
Permit to remove
  • Approval needed to remove, cut down, trim over 1/3 of green foliage, poison, kill or destroy a significant tree.
    Applies: Significant trees in the Coastal Zone. Listed exempt activities are not covered.
    § 16.34.040 · code text
    Except for those exempt activities as enumerated in SCCC § 16.34.090, no person shall do, cause, permit, aid, abet, suffer, or furnish equipment or labor to remove, cut down, or trim more than one-third of the green foliage of, poison, or otherwise kill or destroy any significant tree as defined in this chapter within the Coastal Zone until a significant tree removal approval for the project has been obtained pursuant to Chapter 18.10 SCCC, Level II.

Swimming pools

Santa Cruz County code County rule: home pool barriers must be at least 60 inches high, with self-closing, self-latching gates that swing away from the pool.

All 14 Santa Cruz County rules on swimming pools, with the code text and the state law underneath →

Pets, chickens and bees

Santa Cruz County code What Santa Cruz County's code adds
Chickens
  • Yes.
    Applies: Kept on the owner's property in a predator-proof coop with an enclosed runway, clean and odor-free. Free-range birds must stay on the property.
    § 6.04.164 · code text
    They shall be confined at all times to the owner's property and be provided a suitable house or coop with an enclosed runway. Free range animals are permitted, but must remain on the owner's property.
Large animals
  • Livestock may not run loose or be kept in public places, or on private property without consent; enclosed at night.
    Applies: Unincorporated County. At night livestock must be in a pen, corral or barn.
    § 6.12.120 · code text
    Persons owning or having care, custody or control of any ox, steer, bull, cow, horse, calf, sheep, goat, hog, or other livestock animal, including any wild animal as defined in California Fish and Game Code Section 2118 that is kept as livestock, shall not:

Other Santa Cruz County rules on this

Santa Cruz County's code also has these chapters. We have not summarized their values on this page yet; read them in the library.

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

How tall can a fence be in Santa Cruz County?

Santa Cruz County's code: Yes. A permit is required. (Hedges, plantings, fences or similar structures in a public right-of-way.) (§ 9.70.520).

How big can a shed or accessory building be in Santa Cruz County?

County rule: inside the urban and rural services lines, detached garages are limited to 16 feet and other accessory structures to 13 feet. County rule: accessory structures up to 640 square feet inside the services lines, or 1,000 outside, need only a building permit.

Can I run a business from my home in Santa Cruz County?

County rule: a home business may use at most 35% of the floor area and 2,000 square feet without a conditional use permit.

Can I park an RV or boat at my home in Santa Cruz County?

County rule: any vehicle may stay on a County-maintained road for at most 72 hours.

Do I need a permit for solar panels or an EV charger in Santa Cruz County?

Santa Cruz County's code: Streamlined permit: submit the checklist application, documents, and required permit processing and inspection fees. (Applies to electric vehicle charging stations.) (§ 12.10.322); Administrative approval and all required permits. (Complete checklist application and documents. The charger may not be turned on or used until county inspection approval.) (§ 12.10.322).

Do I need a permit to remove a tree in Santa Cruz County?

County rule: in the Coastal Zone, removing a significant tree or trimming more than one-third of its foliage needs approval.

Can I keep chickens or bees at my home in Santa Cruz County?

Santa Cruz County's code: Yes. (Kept on the owner's property in a predator-proof coop with an enclosed runway, clean and odor-free. Free-range birds must stay on the property.) (§ 6.04.164); Livestock may not run loose or be kept in public places, or on private property without consent; enclosed at night. (Unincorporated County. At night livestock must be in a pen, corral or barn.) (§ 6.12.120).

General information, not legal advice.

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