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La Mirada · Building on your lot

Building on your lot in La Mirada

La Mirada's city code controls fence finishes, accessory structure height and setbacks, and home businesses. Setbacks depend on the type of structure, and a home business needs a permit and a business license.

Key points

  • Accessory structures: City code limits accessory structures to 15 feet; enclosed or solid-roofed ones and pools must be 5 feet from interior side and rear lines.
  • Home businesses: City code limits a home business to one room, with no customer activity on the premises and only residents working there.
  • Fence approval: City code requires planning division approval of the finish, materials, color and texture of all interior neighborhood fences and walls before construction.

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

Fences and walls

La Mirada code What La Mirada's code adds
Permit
  • The planning division must approve the finish, materials, color and texture before construction.
    Applies: All interior neighborhood fences and walls.
    § 21.62.070 · code text
    The finish, materials, color, and texture, shall complement the existing main structure and must be approved by the planning division prior to construction.

Sheds, garages and other accessory structures

La Mirada code City code limits accessory structures to 15 feet; enclosed or solid-roofed ones and pools must be 5 feet from interior side and rear lines.

All 10 La Mirada rules on sheds, garages and other accessory structures, with the code text →

Running a business from home

La Mirada code City code limits a home business to one room, with no customer activity on the premises and only residents working there.

All 6 La Mirada rules on running a business from home, with the code text →

Lot splits under SB 9

La Mirada code At least 4 feet from side and rear property lines. At least 20 feet from the front property line.

All 8 La Mirada rules on lot splits under SB 9, with the code text →

RV and boat parking

La Mirada code What La Mirada's code adds
Parking on the street
  • Not allowed unless hitched to a capable motor truck, motor vehicle or truck tractor.
    Applies: Applies to trailers and semitrailers on a public street or alley.
    § 10.16.040 · code text
    No person who owns or has possession, custody or control of any semitrailer or trailer shall park or permit the parking of such vehicle upon any public street or alley unless such vehicle (semitrailer or trailer) is at all times while so parked attached to a motor truck, motor vehicle or truck tractor capable of moving such trailer or semitrailer upon the public streets, highways or alleys in a reasonable and lawful manner.

Solar panels and EV chargers

La Mirada code No higher than the city's maximum legal building height, using the most restrictive rule. Expedited permit. You may apply in person or online through the electronic submittal system.

All 4 La Mirada rules on solar panels and EV chargers, with the code text →

Swimming pools

La Mirada code No openings larger than 50 square inches. A rectangular opening may be larger than 50 square inches only if no horizontal side is over 4 inches.

All 4 La Mirada rules on swimming pools, with the code text →

Building in a flood zone

La Mirada code What La Mirada's code adds
Building in a floodway
  • No new development, including fill, unless all development combined raises the base flood level no more than 1 foot anywhere.
    Applies: Zones A1-30 and AE, until a regulatory floodway is adopted.
    § 21.32.200 · 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 on the community’s flood insurance rate map, 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 of La Mirada.
  • Fill, new building, substantial improvements and other encroachments are banned unless a registered civil engineer certifies no flood-level rise.
    Applies: Inside an adopted regulatory floodway.
    § 21.32.200 · code text
    Within an adopted regulatory floodway, the City of La Mirada 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
  • Lowest floor at or above the base flood elevation.
    Applies: New or substantially improved homes in AE, AH and A1-30 zones.
    § 21.32.150 · code text
    In AE, AH, A1-30 zones on the community’s flood insurance rate map, elevated to or above the base flood elevation.
  • Lowest floor above the highest adjacent grade by at least the FIRM depth number.
    Applies: New or substantially improved homes in an AO zone with a depth number.
    § 21.32.150 · code text
    In an AO zone on the community’s flood insurance rate map, elevated above the highest adjacent grade to a height equal to or exceeding 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.
  • Lowest floor at least 2 feet above the highest adjacent grade.
    Applies: New or substantially improved homes in an AO zone when the FIRM gives no depth number.
    § 21.32.150 · code text
    In an AO zone on the community’s flood insurance rate map, elevated above the highest adjacent grade to a height equal to or exceeding 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.
  • Lowest floor at or above the base flood elevation.
    Applies: New or substantially improved homes in an unnumbered A zone (no base flood elevation on the FIRM).
    § 21.32.150 · code text
    In an A zone on the community’s flood insurance rate map, without BFE’s specified on the FIRM [unnumbered A zone], elevated to or above the base flood elevation; as determined under Section 21.32.120C.

Noise and construction hours

La Mirada code 7 a.m. to 8 p.m. 7 a.m. to 8 p.m. on Saturday.

All 5 La Mirada rules on noise and construction hours, with the code text →

Outdoor lighting

La Mirada code What La Mirada's code adds
When lights must be off
  • 11 p.m. to 6 a.m.
    Applies: Single-family homes: lights must be motion-activated, off in these hours, or shielded so they do not bother neighbors.
    § 21.70.070 · code text
    outdoor lighting shall either be motion detected, off between the hours of 11:00 p.m. and 6:00 a.m., or directed and shielded in a manner that does not constitute a nuisance to abutting residential property.
Shielding
  • Aimed and shielded so it is not a nuisance to neighboring homes.
    Applies: Single-family homes; an option instead of motion sensors or turning lights off 11 p.m. to 6 a.m.
    § 21.70.070 · code text
    outdoor lighting shall either be motion detected, off between the hours of 11:00 p.m. and 6:00 a.m., or directed and shielded in a manner that does not constitute a nuisance to abutting residential property.

Garage and yard sales

La Mirada code 2 days in a row. Yes; the city council sets a fee to cover permit, enforcement and program costs.

All 4 La Mirada rules on garage and yard sales, with the code text →

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

Group homes and residential care

La Mirada code A Conditional Use Permit is required. Permitted by right in any residential zone.

All 4 La Mirada rules on group homes and residential care, with the code text →

Home alarm permits and false alarms

La Mirada code Silence the alarm within 30 minutes after the Alarm Officer notifies you, or it counts as a false alarm An automatic shut-off device that silences the alarm within 15 minutes after activation may be used instead of responding

All 4 La Mirada rules on home alarm permits and false alarms, with the code text →

Signs on homes

La Mirada code At most 2 signs per parcel, 10 square feet combined, 4 feet high; exempt from the sign chapter Put up no earlier than 60 days before the election; remove within 10 days after; exempt from sign chapter

All 7 La Mirada rules on signs on homes, with the code text →

Trash and recycling carts

La Mirada code What La Mirada's code adds
When carts must come back
  • Remove containers from the place of collection before 10 p.m. on the day they are emptied
    Applies: Residential householders
    § 6.08.520 · code text
    No person shall place any such container for collection earlier than sunset of the day preceding the day designated for collection, and all containers and receptacles shall be removed from the place of collection prior to ten p.m. of the day the containers have been emptied.
When carts may go to the curb
  • Do not put containers out earlier than sunset on the day before collection
    Applies: Residential householders; containers go at the curb in front of the premises (or the side street curb on a corner)
    § 6.08.520 · code text
    No person shall place any such container for collection earlier than sunset of the day preceding the day designated for collection, and all containers and receptacles shall be removed from the place of collection prior to ten p.m. of the day the containers have been emptied.
Where carts are kept
  • A storage location not visible from any public right-of-way, excluding alleys
    Applies: Residential householders
    § 6.08.520 · code text
    Such containers shall be removed to a storage location which is not visible from any public right-of-way, excluding alleys.

Other La Mirada rules on this

La Mirada'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 La Mirada?

City code requires planning division approval of the finish, materials, color and texture of all interior neighborhood fences and walls before construction.

What are the rules for building in a La Mirada flood zone?

La Mirada's code: Lowest floor at or above the base flood elevation. (New or substantially improved homes in AE, AH and A1-30 zones.) (§ 21.32.150); Lowest floor above the highest adjacent grade by at least the FIRM depth number. (New or substantially improved homes in an AO zone with a depth number.) (§ 21.32.150).

What are the outdoor lighting rules for homes in La Mirada?

La Mirada's code: Aimed and shielded so it is not a nuisance to neighboring homes. (Single-family homes; an option instead of motion sensors or turning lights off 11 p.m. to 6 a.m.) (§ 21.70.070); 11 p.m. to 6 a.m. (Single-family homes: lights must be motion-activated, off in these hours, or shielded so they do not bother neighbors.) (§ 21.70.070).

Can I run a family child care home in La Mirada?

California law sets this for every city, including La Mirada: 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)).

When can trash carts go out to the curb in La Mirada?

La Mirada's code: Remove containers from the place of collection before 10 p.m. on the day they are emptied (Residential householders) (§ 6.08.520); Do not put containers out earlier than sunset on the day before collection (Residential householders; containers go at the curb in front of the premises (or the side street curb on a corner)) (§ 6.08.520).

General information, not legal advice.

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