Local zoning · Fresno County

Fresno County — Signage

Signage under the Fresno County local zoning and planning code, with the controlling citations.

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Last reviewed: July 3, 2026

Overview

This page explains how the Fresno County Zoning Ordinance regulates signage in the unincorporated areas of Fresno County. The County’s rules are collected primarily in Chapter 830.3 – Signs (definitions, general provisions, prohibited signs, amortization of nonconforming signs) and in zone‑specific sign tables and overlay rules; every permitted or prohibited sign type is tied to a zone or overlay and to the County’s general rules (§ 830.3.010–.110) . Read this page as applying only to unincorporated Fresno County (incorporated cities have their own codes). Verify parcel‑specific allowances with the County before construction.

How the ordinance is structured (short)

  • Countywide sign policy, definitions, and basic rules: § 830.3.010–.090 (purpose, applicability, definitions, exempt/prohibited signs) .
  • General technical standards (area calculation, height/setback rules, lighting, double‑faced signs, site plan requirements): § 830.3.080 and related subsections .
  • Standards for specific types of signs and zone tables (commercial, industrial, agricultural, residential special rules) appear in the sign chapter and in zone/subsection tables (e.g., Table 3‑10‑3) and overlay provisions (Chapter 818.2) .
  • Rules on nonconforming signs and amortization deadlines are in § 830.3.110 .

Because the code ties sign permissions to the underlying zoning district, below is a district‑by‑district breakdown of the most decision‑relevant rules and how they interact with countywide sign standards.

(Note: first time each related topic appears below it is linked to the Fresno County menu page that covers that topic: parking, development standards, design review, overlay districts, nonconforming uses, and the California Building Standards Code.)

Countywide (applies to all zones)

  • Policy and applicability: County signs must be authorized by the sign chapter; the ordinance is message‑neutral and regulates non‑communicative aspects (number, size, location, illumination) independent of message (§ 830.3.010–.020) .
  • Definitions: “Sign,” “sign area,” “freestanding sign,” “wall sign,” “temporary sign,” etc., are defined in § 830.3.030 and used throughout the chapter; area is measured as maximum vertical × maximum horizontal (§ 830.3.030; § 830.3.080) file.
  • Area calculation / double‑faced signs: Where area is limited, a double‑faced sign may have the allowed area on each side provided the faces are within the maximum separation (max 24 inches or 10% of the face dimension, whichever is less) (§ 830.3.080) .
  • Lighting and movement: No blinking/flashing/animated signs (except time/temperature/weather displays), no red/green/amber lights that could be mistaken for traffic signals, illumination must be shielded against glare (§ 830.3.080; § 830.3.060) file.
  • Prohibited signs (countywide): signs endangering motorists, signs obstructing intersection sight distance, signs confusing to traffic, portable signs that masquerade as permanent, inflatables used to draw attention, signs that make sound, and certain banners/flags (non‑governmental) (§ 830.3.060) .
  • Abandoned signs: Owners must remove abandoned signs upon business closure; County can remove and recover costs if owner fails to act (§ 830.3.070) .
  • Nonconforming signs: Amortization schedules differ by context — e.g., legal nonconforming on‑site signs in agricultural or residential zones must be removed without compensation after 15 years; legal nonconforming commercial signs and billboards must be removed or conform within 5 years after the ordinance effective date; other special amortization rules apply (§ 830.3.110) .

District-by-district breakdown (what to expect on a typical unincorporated parcel)

Below are the most common zoning districts that callers encounter. Each subsection gives the sign types typically permitted, the key dimensional limits you will see in the code, and where those rules live.

AC (Commercial) — purpose / where it applies

Typical commercial frontage and neighborhood commercial strips in unincorporated areas. Signs in AC follow the commercial sign standards and the AC subsection for projecting/flat/marquee signs (§ 830.3.090; AC zone rules) file.

Key permitted types and limits

  • Building‑mounted (flat/painted) signs: limited to one per occupancy per building frontage; not more than 100 sq ft or 1 sq ft per front foot of facade, whichever is less (§ 830.3.090; AC standards) file.
  • Vertical/projecting signs: thickness and projection limits apply (various projection rules tied to mounting height; see the vertical sign rules) (§ 830.3.090) .
  • Marquee signs: permitted as part of marquees; height and structural limits reference building code constraints (§ 830.3.090) .

When design review or Director Review applies: larger signs or departures can require Director Review or other discretionary approvals per the site plan/design review rules; consult Fresno County Design Review and the zone’s site plan requirements (§ 818.2/§ 830.3.090) .

C-4 / C-6 / C (Commercial categories) — purpose / typical uses

Higher‑intensity commercial and highway‑oriented uses. The County’s commercial sign table (Table 3‑10‑3) indicates permitted sign types by commercial district; additional location and lighting rules apply (§ 830.3.090; Table 3‑10‑3) .

Key dimensional rules (examples)

  • Where a C district abuts a residential district, C‑1 district sign rules or limitations apply within 50 ft of that boundary (location/compatibility rule) (§ C‑4/C‑6 specific rules) .
  • Sign placement must not obstruct motorists’ clear view at intersections; lighting must be directed and non‑confusing to traffic (§ 830.3.080; C‑4 rules) file.

R‑P (Residential Professional / Institutional) — purpose / typical uses

Small signs for institutional or professional offices allowed inside residential districts.

Key limits

  • One freestanding sign for nonresidential uses is permitted: maximum 15 sq ft area and 6 ft height; building‑mounted sign/letter height and small name plates are also specified (§ R‑P district rules) .
  • Illumination limitations: non‑flashing, shielded lighting only (§ 830.3.080) .

T‑P (Mobile Home Park) — purpose / typical uses

Sign rules for mobile home parks.

Key limits

  • Signs advertising a mobile home park: 1 sq ft of sign face per front foot of frontage, up to a maximum of 100 sq ft per frontage; name plates for services limited to 2 sq ft and typically unlighted (§ T‑P standards) .

Agricultural / Produce / Rural signs — purpose / typical uses

Special allowances for on‑site farm sales and temporary produce directional signs.

Key limits and special rules

  • On‑site farm sales sign: one sign per street frontage; up to 40 sq ft (§ agricultural signs) .
  • Off‑site produce directional signs: limited number per use (generally 2, more if adjacent to intersections), up to 40 sq ft and 12 ft height; must be located within 2,500 ft of the produce stand, a minimum 10 ft from the paved road, and outside public ROW; signs are prohibited in corner cut‑off areas (§ agricultural/produce standards) .
  • Temporary produce approach signs have smaller area/height limits (e.g., 16 sq ft, 10 ft height) and distance rules; all require site plan approval (§ 828.3 subsections) .

Overlay / Highway frontage rules (Chapter 818.2)

Overlay and combining zones can override or augment the underlying zone for highway corridors and specific frontages. Notably, some overlay provisions set sign area and height as formulas based on the sign’s setback from the highway: e.g., freestanding sign height permitted at 1 ft of height per 1 ft of highway setback up to 35 ft, and sign area 3 sq ft of sign area per 1 ft of setback up to 200 sq ft for some overlays; monument signs in required landscaped buffers are limited to 60 sq ft (§ 818.2.080 and related overlay text) file.
These setback‑based formulas are overlay‑specific and require parcel‑level calculations; verify applicability on your parcel with the County’s overlay mapping and the overlay subsection text (§ 818.2.080) .

Quick reference table — most decision‑relevant standards

Topic Typical numeric limit / rule (unincorporated Fresno County) Code Reference
Countywide purpose, applicability, definitions County sign rules apply everywhere in unincorporated Fresno County; area = vertical × horizontal § 830.3.010–.030 file
Double‑faced sign rule Allowed; faces may each have allowed area if separation ≤ 24 in (or 10% of max dim) § 830.3.080
Prohibited signs (examples) Blinking/flashing/animated (except time/temp); signs that impair traffic controls; inflatables; sound signs § 830.3.060
Nonconforming sign amortization Residential/ag on‑site signs: 15 years; Commercial signs/billboards: 5 years to remove/retrofit § 830.3.110
Typical commercial building sign ≤ 100 sq ft OR 1 sq ft per front foot of facade, whichever is less Commercial rules / AC standards (Table 3‑10‑3 / § 830.3.090) file
Freestanding sign (many commercial zones) Often limited to 100 sq ft and 20 ft height in those zone subsections; overlay formulas may instead apply Zone subsections and overlay § 830.3.090; § 818.2.080 file
R‑P freestanding sign 15 sq ft, 6 ft height for nonresidential signs in R‑P R‑P district rules (sign subsection)
Mobile home park (T‑P) 1 sq ft per front foot, max 100 sq ft per frontage; name plates 2 sq ft T‑P district rules (Table 3‑10‑3 / §)
Agricultural on‑site sales sign 40 sq ft per frontage Agricultural sign subsection
Produce stand directional Max 40 sq ft, 12 ft high; within 2,500 ft of stand; 10 ft from paved edge; off‑ROW Agricultural/produce standards

Checklist — what an applicant must supply / satisfy

  • Confirm the parcel is in unincorporated Fresno County and identify the exact underlying zone and any overlay(s) (verify with County).
  • Determine allowed sign types and numeric limits for the specific zone and overlay; check § 830.3.090 for zone tables and § 818.2.080 for overlay formulas file.
  • Site plan/plot plan showing sign location, distances to property lines and road, and any required landscape buffers; include photos from 200 ft approach points and a scaled sign rendering with colors, height, and dimensions (County expects these materials for freestanding signs) .
  • Verify illumination follows shielding and color rules (no red/green/amber that could confuse traffic; no blinking/animated displays except limited exceptions) (§ 830.3.080; § 830.3.060) file.
  • If the sign exceeds by zone limits or overlay formulas, prepare a Conditional Use Permit application or Director Review package per County procedures (see Director Review / Variance processes) .
  • Confirm whether the sign structure meets building‑code thresholds; coordinate with the County Building Department and the California Building Standards Code as needed.
  • If sign is legal nonconforming, review amortization timelines in § 830.3.110 and plan accordingly .
  • Pay any required permits and schedule inspections or posting as the County requires.

Risks & Ambiguities

Issue Why it matters What to verify
Overlay setback formulas (height/area vary by setback) Overlay formulas can allow larger/heavier signs based on setback; mis‑application can lead to noncompliance Confirm whether the parcel is inside an overlay and run the setback‑based height/area calculation in § 818.2.080
Whether a sign is “double‑faced” for area limits Counting the faces incorrectly can under/overestimate allowable area Use the area‑calculation rule and the double‑faced separation rule in § 830.3.080 (faces allowed if ≤ 24 in separation or 10%)
Nonconforming amortization timing and compensation Different amortization periods (15 yr vs 5 yr) apply by zone/type and may require removal without compensation Check whether the sign is an on‑site sign in an agricultural/residential zone or a commercial billboard and apply § 830.3.110
Lighting color and traffic confusion rules Red/green/amber or movable lights can be prohibited because they confuse drivers Confirm lighting plan complies with § 830.3.080 and § 830.3.060; include shielding specs in submittal file
Whether a “special” temporary/real‑estate/political sign is exempt Temporary sign rules are detailed (size, duration, location) and differ by sign type Confirm the exact temporariness and classification; consult § 830.3.050–.090 for exemptions and temporary sign caps file

Plain‑English summary

Fresno County requires that signs in the unincorporated area follow County sign rules (Chapter 830.3) plus any zone‑specific limits; common constraints are maximum area and height, lighting/shielding, no flashing that would distract drivers, and special amortization deadlines for older nonconforming signs. For highway‑fronting parcels many overlay rules use the sign’s setback to compute allowed size and height — check the overlay text and your parcel’s zone before you design. Verify with County staff for parcel‑level overlays, discretionary approvals, or building‑permit triggers (§ 830.3.010–.110; § 818.2.080) file.

Source References

  • Fresno County Zoning Ordinance, Chapter 830.3 – Signs (Purpose, Applicability, Definitions, Exempt/Prohibited, Abandoned, General Provisions) — § 830.3.010–.090 .
  • Fresno County Zoning Ordinance, General Provisions for All Signs and sign area/height/illumination rules — § 830.3.080 .
  • Fresno County Zoning Ordinance, Nonconforming Sign Amortization — § 830.3.110 .
  • Commercial/Specific sign tables (Table 3‑10‑3 / Table 3‑10‑4) and commercial sign subsections — § 830.3.090 and Table 3‑10‑3 .
  • AC zone sign specifics, vertical and marquee sign rules (AC subsections) — AC sign rules (§ in Article 3 sign subsections) .
  • C‑4 / C‑6 zone sign restrictions and proximity to residential districts — district sign text (C‑4/C‑6 subsections) .
  • Agricultural and produce stand sign rules (on‑site/off‑site directional, temporary approach signs) — agricultural sign subsection and produce‑stand provisions (§ 828.3 subsections) file.
  • Overlay/Combining Zone sign formulas and landscaped buffer monument sign limit (Chapter 818.2 / § 818.2.080 and related) file.
  • Fresno County Design Review, Parking, Development Standards, Nonconforming Uses, and Building Code pages referenced in guidance: Fresno County Design Review, Fresno County Parking, Fresno County Development Standards, Fresno County Overlay Districts, Fresno County Nonconforming Uses, California Building Standards Code.

Sources

Retrieved passages

  • Fresno County Zoning Code (Chapter 818.2) High relevance
  • Fresno County Zoning Code (Chapter 818.2) High relevance
  • Fresno County Zoning Code (Chapter 818.2) High relevance
  • Fresno County Zoning Code (Chapter 842.5) High relevance
  • Fresno County Zoning Code (Chapter 828.3) High relevance
  • Fresno County Zoning Code (Chapter 828.3) High relevance
  • Fresno County Zoning Code (Chapter 828.3) High relevance
  • Fresno County Zoning Code (Chapter 818.2) High relevance

Cited sections

Frequently asked questions

What are the Countywide rules that apply to any sign in unincorporated Fresno County?

Countywide rules live in § 830.3.010–.090 and set purpose, definitions, and core limits (area calculation, illumination rules, prohibited sign types, and temporary/exempt sign categories). Area is computed as max vertical × max horizontal and illumination/movement restrictions (e.g., no blinking or confusing colors) apply to all zones (§ 830.3.010–.090; § 830.3.080) file.

How is sign area calculated and do double‑faced signs count twice?

Sign area is calculated by multiplying the maximum vertical by the maximum horizontal dimension of the sign face. Double‑faced signs may be erected having the allowed sign area on each side provided the maximum separation between the faces is within the code limits (faces separated by no more than 24 inches or 10% of the maximum face dimension, whichever is less) (§ 830.3.080) .

Do blinking/red/green/neon signs ever get allowed?

Blinking, flashing, rotating, or animated signs are broadly prohibited except for displays that convey time, temperature, or weather. Red/green/amber illuminated signs that could reasonably be confused with traffic signals are prohibited (§ 830.3.060; § 830.3.080) file.

What limits apply to highway‑facing freestanding signs?

Overlay rules can control highway‑facing freestanding signs with setback‑based formulas (for certain overlays: 1 ft of height per 1 ft of highway setback up to 35 ft, and 3 sq ft of sign area per 1 ft of setback up to 200 sq ft, with monument signs in landscape buffers capped at 60 sq ft) — these are in the overlay text (Chapter 818.2 / § 818.2.080) and apply where the overlay is mapped to the parcel file.

How long can an existing nonconforming sign remain?

Amortization depends on the sign type and zone: legal nonconforming on‑site signs in agricultural or residential zones must be removed 15 years after becoming nonconforming; legal nonconforming commercial signs and billboards must be removed or made to conform within 5 years of the ordinance effective date (§ 830.3.110) .

Can I erect a produce stand directional sign along a county road?

Yes — the ordinance allows off‑site freestanding produce‑stand directional signs subject to limits: number per use (generally up to 2), each sign up to 40 sq ft and 12 ft height, located within 2,500 ft of the stand and at least 10 ft from the paved portion of the road and outside public ROW; they cannot be placed in corner cutoff areas and require a site plan approval (§ 828.3 agricultural/produce sign standards) .

If my parcel is in a commercial district, how big can a building‑mounted sign be?

Commercial building‑mounted (painted/flat) signs are typically limited to 100 sq ft or 1 sq ft per front foot of the facade, whichever is less, and often to one sign per occupancy per building frontage; details are in the commercial sign table and AC/Commercial sign subsections (§ 830.3.090; Table 3‑10‑3) file.

Are temporary political or real‑estate signs treated differently?

Yes. The ordinance contains exemptions and special limits for temporary signs (political, real estate, subdivision directional, open‑house signs). Each type has specific size, duration, and placement rules; check § 830.3.050–.090 and the relevant table for the exact sign type you plan to use (§ 830.3.050; § 830.3.090) file.

Who enforces removal of abandoned signs and what happens if the owner does not comply?

Property owners must remove abandoned signs immediately upon business closure; the County may remove noncompliant signs after notice and charge removal and storage costs to the owner, which can become a tax lien if unpaid (§ 830.3.070) .

When do I need Director Review or a Conditional Use Permit for a sign?

Large signs that exceed the numeric limits of the underlying zone or that are not expressly allowed may require Director Review or a Conditional Use Permit. Overlay departures or off‑site temporary subdivision directional signs often require discretionary approvals (check the relevant zone subsection and Chapter 842.5 for Conditional Use Permit reference) (§ 830.3.090; overlay text) file. ---

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