Atascadero · Building on your lot

Building on your lot in Atascadero

Atascadero sets detailed limits on home businesses, including traffic, employees and on-site sales. The city also has a section on residential accessory uses.

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Key points

Accessory uses: Atascadero has a city section on residential accessory uses (§ 9-6.106).
Home business: Atascadero limits home business traffic to 10 trips a day; office-type services may have 1 client vehicle at a time.

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

Running a business from home

Atascadero code Atascadero limits home business traffic to 10 trips a day; office-type services may have 1 client vehicle at a time.

All 8 Atascadero rules on running a business from home, with the code text →

Tree removal

Atascadero code Emergencies that create hazardous or dangerous conditions; report them to the City within 48 hours. Pruning that affects less than 25% of the live canopy within 1 year.

All 10 Atascadero rules on tree removal, with the code text →

Pets, chickens and bees

Atascadero code What Atascadero's code adds
Pet limit	No more than 3 dogs or cats. Applies: Applies to a single-family dwelling; counts dogs or cats 4 months old or older. § 4-1.119 · code text It is unlawful for any person or persons to own, harbor or maintain at any single-family dwelling more than three dogs or cats four months of age or older.

Building in a flood zone

Atascadero code What Atascadero's code adds
Floodplain permit	A development permit is needed before any construction or other development, including manufactured homes. Applies: In any special flood hazard area. § 7-11.017 · code text A development permit shall be obtained before any construction or other development, including manufactured homes, within any area of special flood hazard established in Section 7 -11.008.
Building in a floodway	No fill, new building, substantial improvement or other development unless a civil engineer certifies no rise in flood levels. Applies: Inside an adopted regulatory floodway. § 7-11.025 · code text Within an adopted regulatory floodway, the City of Atascadero 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. No new building or development, including fill, unless all development combined raises base flood level no more than 1 foot. Applies: In Zones A1-30 and AE, until a regulatory floodway is adopted; measured at any point in the City. § 7-11.025 · 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 of Atascadero.
Height of the lowest floor	The lowest floor must be at or above the base flood elevation. Applies: New or substantially improved homes, lowest floor including basement, in Zones AE, AH and A1-30. § 7-11.020 · code text In AE, AH, A1-30 Zones, elevated to or above the base flood elevation. Above the highest nearby grade by at least the FIRM depth number, in feet. Applies: New or substantially improved homes, lowest floor including basement, in an AO Zone with a depth number on the FIRM. § 7-11.020 · code text In an AO Zone, 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. At least 2 feet above the highest nearby grade. Applies: New or substantially improved homes, lowest floor including basement, in an AO Zone with no depth number on the FIRM. § 7-11.020 · code text elevated at least two feet above the highest adjacent grade if no depth number is specified. The lowest floor must be at or above the base flood elevation, as the code's method determines. Applies: New or substantially improved homes, lowest floor including basement, in an unnumbered A Zone with no base flood elevations on the FIRM. § 7-11.020 · code text In an A Zone, without BFEs specified on the FIRM (unnumbered A Zone), elevated to or above the base flood elevation; as determined under Section 7-11.016(c).

Noise and construction hours

Atascadero code What Atascadero's code adds
Noise limit at homes	60 dB maximum indoors from 7 a.m. to 9 p.m. Applies: Measured inside a neighboring home; the hourly average (Leq) limit is 40 dB. § 9-14.06 · code text Maximum, level \| 60 \| 55 55 dB maximum indoors from 9 p.m. to 7 a.m. Applies: Measured inside a neighboring home; the hourly average (Leq) limit is 35 dB. § 9-14.06 · code text Maximum, level \| 60 \| 55 70 dB maximum outdoors from 7 a.m. to 9 p.m. Applies: Measured outside at a home; the hourly average (Leq) limit is 50 dB. § 9-14.05 · code text Maximum, dB \| 70 \| 65 65 dB maximum outdoors from 9 p.m. to 7 a.m. Applies: Measured outside at a home; the hourly average (Leq) limit is 45 dB. § 9-14.05 · code text Maximum, dB \| 70 \| 65

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 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)

Signs on homes

Atascadero code What Atascadero's code adds
Home business signs	Up to 2 square feet in total. Applies: Residential and home occupation signs; exempt from the building permit if they meet the chapter's standards. § 9-15.004 · code text (e) Residential Signs and Home Occupations. With an aggregate area of two square feet.

Trash and recycling carts

Atascadero code Remove containers within 12 hours after pickup. Not earlier than 24 hours before pickup time.

All 3 Atascadero rules on trash and recycling carts, with the code text →

Other Atascadero rules on this

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

Residential accessory uses (§ 9-6.106)
Pool setbacks from the house and property line (§ 8-3.104)
Grading permits, plans and standards (§ 9-4.138)
Hillside building standards (§ 9-4.157) — steep slopes only
Outdoor lighting shielding (§ 9-4.137)
Development impact fees (Ch. 3-14)

Who this affects

HomeownersContractorsDesigners

Frequently asked questions

How big can a shed or accessory building be in Atascadero?

Atascadero has a city section on residential accessory uses (§ 9-6.106). Atascadero also has a related rule: Residential accessory uses (§ 9-6.106).

What are the rules for building in an Atascadero flood zone?

Atascadero's code: A development permit is needed before any construction or other development, including manufactured homes. (In any special flood hazard area.) (§ 7-11.017); The lowest floor must be at or above the base flood elevation. (New or substantially improved homes, lowest floor including basement, in Zones AE, AH and A1-30.) (§ 7-11.020).

What are the noise rules and construction hours in Atascadero?

Atascadero's code: 60 dB maximum indoors from 7 a.m. to 9 p.m. (Measured inside a neighboring home; the hourly average (Leq) limit is 40 dB.) (§ 9-14.06); 55 dB maximum indoors from 9 p.m. to 7 a.m. (Measured inside a neighboring home; the hourly average (Leq) limit is 35 dB.) (§ 9-14.06).

Can I run a family child care home in Atascadero?

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

What signs may I put up at my home in Atascadero?

Atascadero's code: Up to 2 square feet in total. (Residential and home occupation signs; exempt from the building permit if they meet the chapter's standards.) (§ 9-15.004).

General information, not legal advice.

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