Rancho Santa Margarita · Building on your lot
Building on your lot in Rancho Santa Margarita
Rancho Santa Margarita sets its own rules for fences, accessory structures and home businesses on residential lots. Fence height depends on the yard and the lot, and fences need a building permit.
Key points
- Fence height: Fences: at most 3.5 feet, or 5 feet in front yards with director approval and open bars; rear and non-corner side yards, 6 feet.
- Accessory height: Detached accessory structures may be no taller than the main building; fireplaces, barbecues and fire pits are limited to 8 feet unless approved otherwise.
- Home businesses: A home business may use at most 2 rooms or 20% of the home, whichever is less, with at most 1 non-resident employee.
Each rule below is marked Rancho Santa Margarita code or CA state law and links to the section it comes from (checked October 2026). General information, not legal advice.
Fences and walls
| Corner visibility |
|
|---|---|
| Height anywhere on the lot |
|
| Front yard height |
|
| Side and rear yard height |
|
| Permit |
|
Sheds, garages and other accessory structures
| Maximum height |
|
|---|---|
| Size or lot coverage |
|
| Side and rear setback |
|
| Distance from the house |
|
Running a business from home
| Space used |
|
|---|---|
| Employees |
|
| Permit |
|
| Businesses not allowed |
|
RV and boat parking
| Size limit |
|
|---|---|
| Parking on the street |
|
Solar panels and EV chargers
| EV charger permit |
|
|---|---|
| Solar permit process |
|
| Review time |
|
Swimming pools
| Pool barrier |
|
|---|---|
| Equipment and alarms |
|
| Setback from property lines |
|
Pets, chickens and bees
| Large animals |
|
|---|---|
| Permit |
|
Who this affects
Frequently asked questions
How tall can a fence be in Rancho Santa Margarita?
Fences: at most 3.5 feet, or 5 feet in front yards with director approval and open bars; rear and non-corner side yards, 6 feet.
How big can a shed or accessory building be in Rancho Santa Margarita?
Detached accessory structures may be no taller than the main building; fireplaces, barbecues and fire pits are limited to 8 feet unless approved otherwise.
Can I run a business from my home in Rancho Santa Margarita?
A home business may use at most 2 rooms or 20% of the home, whichever is less, with at most 1 non-resident employee.
Can I park an RV or boat at my home in Rancho Santa Margarita?
Rancho Santa Margarita's code: Vehicles over 25 feet long or over 10,000 pounds may not park on any public street. (Except active loading or unloading, emergency repairs (up to 12 hours in a row), or serving a property on the block (up to 72 hours).) (§ 12.02.060); Up to 12 hours in a row. (Vehicles over 25 feet long or 10,000 pounds on a public street, during emergency repairs to the vehicle.) (§ 12.02.060).
Do I need a permit for solar panels or an EV charger in Rancho Santa Margarita?
Rancho Santa Margarita's code: Administrative, nondiscretionary approval with all needed permits when the application meets the City checklist. (Applies to EV charging stations.) (§ 10.10.060); Administrative, nondiscretionary review; permit issues when the application meets checklist and standard plan; 1 inspection, scheduled within 2 business days. (Applies to small residential rooftop solar systems eligible for expedited review.) (§ 10.08.060).
What are the pool fence and setback rules in Rancho Santa Margarita?
Rancho Santa Margarita's code: Pools, whirlpools and spas must be fenced as the adopted building code requires. (§ 9.04.120); Pool equipment must be fully screened from view from public streets and neighboring property. (Applies to all pool equipment.) (§ 9.04.120).
Can I keep chickens or bees at my home in Rancho Santa Margarita?
Rancho Santa Margarita's code: Livestock must be kept in by a good, strong fence that meets zoning rules. (Applies to livestock kept on the owner's or keeper's premises.) (§ 5.12.900); An additional animal license is required for 5 or more dogs. (Applies to dogs over 4 months old kept for the purpose the code describes.) (§ 5.12.360).
General information, not legal advice.
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