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Patterson · Building on your lot

Building on your lot in Patterson

Patterson sets setbacks for each type of accessory structure and limits primary and accessory structures together to 60 percent of the lot. Home businesses need a home occupation use permit and a city business license, and many trades and offices are not allowed.

Key points

  • Fences: Patterson has a chapter on fences, walls and screening (Chapter 18.70).
  • Shed height: Closed-roof structures such as sheds are limited to 12 feet and 1 story; 12 to 16 feet needs a conditional use permit.
  • Home business size: A home occupation may use at most 1 room or 10 percent of the main building's floor area, whichever is greater; no on-site customers.

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

Sheds, garages and other accessory structures

Patterson code Closed-roof structures such as sheds are limited to 12 feet and 1 story; 12 to 16 feet needs a conditional use permit.

All 11 Patterson rules on sheds, garages and other accessory structures, with the code text →

Running a business from home

Patterson code A home occupation may use at most 1 room or 10 percent of the main building's floor area, whichever is greater; no on-site customers.

All 7 Patterson rules on running a business from home, with the code text →

RV and boat parking

Patterson code Oversized means over 18 feet long, 80 inches wide or 82 inches high, or rated 10,000 pounds or more. Up to 24 hours in a row.

All 3 Patterson rules on RV and boat parking, with the code text →

Solar panels and EV chargers

Patterson code What Patterson's code adds
EV charger permit
  • The building official approves an application meeting the city checklist and issues all needed permits.
    Applies: Electric vehicle charging stations; the station may not be energized or used until the city approves it.
    § 15.60.040 · code text
    A permit application that satisfies the information requirements in the city's adopted checklist shall be deemed complete and be promptly processed.
Solar permit process
  • Electronic submittal and electronic signatures are allowed as resources permit.
    Applies: Small residential rooftop solar systems.
    § 15.59.030 · code text
    The expedited, streamlined permitting process for small residential rooftop solar energy systems shall comply with the applicable requirements contained in this title, Buildings and Construction, and all of the following:
  • The application is approved and all permits issued once it is complete and meets all state building codes.
    Applies: Small residential rooftop solar systems.
    § 15.59.030 · code text
    Upon confirmation, by the department that the application and supporting documentation are complete and meet all requirements of the California Building Standards Codes, the department shall approve the application and issue all required permits.

Pets, chickens and bees

Patterson code Yes; no more than 6 adult chickens per parcel. At least 15 feet.

All 8 Patterson rules on pets, chickens and bees, with the code text →

Building in a flood zone

Patterson code A development permit is needed before construction or development begins; the fee is set by city council resolution. 1 foot above the base flood elevation.

All 5 Patterson rules on building in a flood zone, with the code text →

Building on a hillside

Patterson code What Patterson's code adds
Grading and retaining walls
  • Pad sites are allowed, but contour grading, limited cut and fill or split levels may be required to reduce grading.
    Applies: Mixed-use hillside overlay, Slope Zone 2, slopes of 5% to 7.99%.
    § 18.54.060 · code text
    Padded building sites are permitted; however, techniques such as contour grading, combined slopes, limited cut and fill, and split-level architectural prototypes, or padding for the structures only, may be required to reduce grading.
When hillside rules apply
  • Slopes of 8% or more are hillside conditions; hillside design that minimizes grading is required.
    Applies: Mixed-use hillside overlay district.
    § 18.54.060 · code text
    3. Slope Zone 3 (Eight Percent to 14.9 Percent Slope). This is a hillside condition.

Noise and construction hours

Patterson code What Patterson's code adds
Construction hours on weekdays
  • Construction work is allowed 7 a.m. to 10 p.m.
    Applies: In or within 500 feet of residential zones. Unlawful 10 p.m. to 7 a.m. if it annoys a reasonable person; permit or emergency work exempt.
    § 6.44.090 · code text
    between the hours of ten p.m. of one day and seven a.m. of the next day
Construction hours on weekends and holidays
  • Construction is allowed 7 a.m. to 10 p.m.; the same hours apply every day, with no separate weekend rule.
    Applies: In or within 500 feet of residential zones. Unlawful 10 p.m. to 7 a.m. if it annoys a reasonable person; permit or emergency work exempt.
    § 6.44.090 · code text
    between the hours of ten p.m. of one day and seven a.m. of the next day

Also in Patterson's code: Noise control rules (Ch. 6.44). This page does not summarize it yet.

Garage and yard sales

Patterson code 7 a.m. to 4 p.m. No more than 2 consecutive days.

All 5 Patterson 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

Affordable units in new housing (inclusionary)

Patterson code Affordable units must carry a covenant for 30 years. At least 15% of newly built dwelling units must go to very low-, low- and moderate-income households.

All 6 Patterson rules on affordable units in new housing (inclusionary), with the code text →

Parking spaces required for homes

Signs on homes

Patterson code What Patterson's code adds
Election and other noncommercial signs
  • 1 sign, up to 8 square feet and 6 feet high, for up to 30 days; no sign permit required.
    Applies: Noncommercial stake sign in a residential zone, on private property only (not on public property or right-of-way).
    § 18.82.080 · code text
    | Noncommercial Stake Sign in Residential Zone | 6 ft | One | 8 sf | 30 days | Only on private property; not on any public property or public right-of-way | No |
For-sale and open-house signs
  • 1 sign, up to 6 square feet; no sign permit required.
    Applies: On-site sign for a property for sale in a residential zone, on the property it advertises.
    § 18.82.080 · code text
    | Signs on Property for Sale—On Site Residential Zone | n/a | One | 6 sf | n/a | Located on the property it advertises | No |

Trash and recycling carts

Patterson code Remove containers not later than 6 p.m. on the day of collection. Put out no earlier than 24 hours before collection day, within 3 feet of the curbline or alley property line.

All 4 Patterson rules on trash and recycling carts, with the code text →

Other Patterson rules on this

Patterson'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 Patterson?

Patterson has a chapter on fences, walls and screening (Chapter 18.70). Patterson also has a related rule: Fences, walls and screening (Ch. 18.70).

Do I need a permit for solar panels or an EV charger in Patterson?

Patterson's code: Electronic submittal and electronic signatures are allowed as resources permit. (Small residential rooftop solar systems.) (§ 15.59.030); The building official approves an application meeting the city checklist and issues all needed permits. (Electric vehicle charging stations; the station may not be energized or used until the city approves it.) (§ 15.60.040).

What extra rules apply to a hillside lot in Patterson?

Patterson's code: Slopes of 8% or more are hillside conditions; hillside design that minimizes grading is required. (Mixed-use hillside overlay district.) (§ 18.54.060); Pad sites are allowed, but contour grading, limited cut and fill or split levels may be required to reduce grading. (Mixed-use hillside overlay, Slope Zone 2, slopes of 5% to 7.99%.) (§ 18.54.060).

What are the noise rules and construction hours in Patterson?

Patterson's code: Construction work is allowed 7 a.m. to 10 p.m. (In or within 500 feet of residential zones. Unlawful 10 p.m. to 7 a.m. if it annoys a reasonable person; permit or emergency work exempt.) (§ 6.44.090); Construction is allowed 7 a.m. to 10 p.m.; the same hours apply every day, with no separate weekend rule. (In or within 500 feet of residential zones. Unlawful 10 p.m. to 7 a.m. if it annoys a reasonable person; permit or emergency work exempt.) (§ 6.44.090).

Can I run a family child care home in Patterson?

California law sets this for every city, including Patterson: 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 Patterson?

Patterson's code: 1 sign, up to 8 square feet and 6 feet high, for up to 30 days; no sign permit required. (Noncommercial stake sign in a residential zone, on private property only (not on public property or right-of-way).) (§ 18.82.080); 1 sign, up to 6 square feet; no sign permit required. (On-site sign for a property for sale in a residential zone, on the property it advertises.) (§ 18.82.080).

General information, not legal advice.

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