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San Juan Capistrano · Building on your lot

Building on your lot in San Juan Capistrano

San Juan Capistrano sets its own limits on fences and accessory structures in residential districts. Fences need building permits, and a retaining wall with a fence may reach 10 feet with administrative approval.

Key points

  • Fence height: Solid front-yard fences: at most 3 feet, or 5 feet with approval and open bars above 3 feet; side and rear yards, 6 feet.
  • Accessory height: Detached accessory structures may be no taller than the main building on the site (city rule).

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

Fences and walls

San Juan Capistrano code Solid front-yard fences: at most 3 feet, or 5 feet with approval and open bars above 3 feet; side and rear yards, 6 feet.

All 6 San Juan Capistrano rules on fences and walls, with the code text →

Sheds, garages and other accessory structures

San Juan Capistrano code Detached accessory structures may be no taller than the main building on the site (city rule).

All 6 San Juan Capistrano rules on sheds, garages and other accessory structures, with the code text →

Lot splits under SB 9

San Juan Capistrano code The lot to be split must be in a single-family residential zoning district. The lot cannot be prime or statewide-important farmland, wetlands, protected habitat, conservation-plan land or under a conservation easement.

All 5 San Juan Capistrano rules on lot splits under SB 9, with the code text →

RV and boat parking

San Juan Capistrano code Vehicles over 25 feet long, 90 inches wide or 10,000 pounds may not park on any public street. At most 12 hours.

All 5 San Juan Capistrano rules on RV and boat parking, with the code text →

Solar panels and EV chargers

San Juan Capistrano code Reviewed administratively by the Building Official as a nondiscretionary permit. The permit can be issued once the application meets all checklist requirements.

All 4 San Juan Capistrano rules on solar panels and EV chargers, with the code text →

Tree removal

San Juan Capistrano code No removal permit for a tree threatening life, safety or property, or a dead tree the fire authority finds hazardous. No removal permit for dead, dying, diseased, unsound or overcrowded trees a qualified tree expert finds unviable.

All 10 San Juan Capistrano rules on tree removal, with the code text →

Swimming pools

San Juan Capistrano code All pools must be completely enclosed by a fence or wall. A pool may not be placed where fence height is limited to less than 5 feet.

All 6 San Juan Capistrano rules on swimming pools, with the code text →

Pets, chickens and bees

San Juan Capistrano code Yes, noncommercial. Hives must be at least 100 feet from any adjacent home. Hives must be at least 150 feet from any bee-sensitive property, such as schools, playgrounds or care facilities.

All 7 San Juan Capistrano rules on pets, chickens and bees, with the code text →

Building in a flood zone

San Juan Capistrano code What San Juan Capistrano's code adds
Floodplain permit
  • You need a grading, building, similar or floodplain permit before building in a flood or flood-erosion hazard area.
    § 8-11.112 · code text
    A grading permit, building permit or similar development permit, or a floodplain land use permit, whichever is applicable under this Code, shall be obtained before construction or development begins within any area of special flood hazards, areas of flood-related erosion hazards established in Section 8-11.107.
Building in a floodway
  • No new development or fill is allowed unless all development together raises the base flood no more than 1 foot.
    Applies: Until a regulatory floodway is adopted, in Zones A1-30 and AE.
    § 8-11.120 · code text
    Until a regulatory floodway is adopted, no new construction, substantial development, or other development (including fill) shall be permitted within Zones A1-30 and AE, unless it is demonstrated that the cumulative effect of the proposed development, when combined with all other development, will not increase the water surface elevation of the base flood more than one foot at any point within the City.
  • Fill, new buildings and other development are not allowed unless a civil engineer certifies no rise in flood levels.
    Applies: Within an adopted regulatory floodway.
    § 8-11.120 · code text
    Within an adopted regulatory floodway, the City shall prohibit encroachments, including fill, new construction, substantial improvements, and other development, unless certification by a registered civil engineer is provided demonstrating that the proposed encroachment shall not result in any increase in flood levels during the occurrence of the base flood discharge.
Height of the lowest floor
  • The lowest floor must be at least 1.0 foot above the base flood elevation.
    Applies: New or substantially improved homes in AE, AH and A1-30 zones.
    § 8-11.115 · code text
    In AE, AH and A1-30 Zones, elevated at least 1.0 foot above the base flood elevation.
  • The lowest floor must be at least the FIRM depth number plus 1.0 foot above the highest nearby ground.
    Applies: New or substantially improved homes in an AO zone with a depth number on the FIRM.
    § 8-11.115 · code text
    In an AO zone, elevated above the highest adjacent grade to a height equal to or exceeding 1.0 foot above the depth number specified in feet on the FIRM, or elevated at least two feet above the highest adjacent grade if no depth number is specified.
  • The lowest floor must be at least 2 feet above the highest nearby ground.
    Applies: New or substantially improved homes in an AO zone with no depth number on the FIRM.
    § 8-11.115 · code text
    In an AO zone, elevated above the highest adjacent grade to a height equal to or exceeding 1.0 foot above the depth number specified in feet on the FIRM, or elevated at least two feet above the highest adjacent grade if no depth number is specified.
  • The lowest floor must be at least 1.0 foot above the base flood elevation.
    Applies: New or substantially improved homes in an unnumbered A zone, where the FIRM shows no base flood elevation.
    § 8-11.115 · code text
    In an A Zone, without BFEs specified on the FIRM [unnumbered A zone], elevated at least 1.0 foot above the base flood elevation; as determined under Section 8-11.114(b).

Family child care homes

CA state law California law
Zoning
A small or large family child care home is a residential use and a use by right under all local ordinances, including zoning
Business license or fee
A city or county may not charge a business license, fee or tax to run a family child care home
Local rules
Local limits on height, setbacks, lot size, health and safety must be the same as for every other home in the same zone
Small home
Up to eight children, counting the provider's own children under 10 who live there
Large home
7 to 14 children, counting the provider's own children under 10 who live there

Home alarm permits and false alarms

San Juan Capistrano code What San Juan Capistrano's code adds
How long an alarm may sound
  • An audible alarm system must limit its sound to a maximum of 15 minutes.
    Applies: Alarm system protecting a residential premises.
    § 5-17.06 · code text
    All audible alarm systems, after activation, shall limit the generation of the audible sound to a maximum of 15 minutes, when the alarm system is protecting a residential premises, and 30 minutes, when the alarm system is protecting any other premises.

Other San Juan Capistrano rules on this

San Juan Capistrano'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

What are the rules for building in a San Juan Capistrano flood zone?

San Juan Capistrano's code: You need a grading, building, similar or floodplain permit before building in a flood or flood-erosion hazard area. (§ 8-11.112); The lowest floor must be at least 1.0 foot above the base flood elevation. (New or substantially improved homes in AE, AH and A1-30 zones.) (§ 8-11.115).

Can I run a family child care home in San Juan Capistrano?

California law sets this for every city, including San Juan Capistrano: Zoning: A small or large family child care home is a residential use and a use by right under all local ordinances, including zoning (Health & Safety Code § 1597.45(a)); Business license or fee: A city or county may not charge a business license, fee or tax to run a family child care home (Health & Safety Code § 1597.45(b)); Local rules: Local limits on height, setbacks, lot size, health and safety must be the same as for every other home in the same zone (Health & Safety Code § 1597.45(e)); Small home: Up to eight children, counting the provider's own children under 10 who live there (Health & Safety Code § 1596.78(c)); Large home: 7 to 14 children, counting the provider's own children under 10 who live there (Health & Safety Code § 1596.78(b)).

Do I need a permit for a home alarm in San Juan Capistrano?

San Juan Capistrano's code: An audible alarm system must limit its sound to a maximum of 15 minutes. (Alarm system protecting a residential premises.) (§ 5-17.06).

General information, not legal advice.

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