Local zoning · Tuolumne County

Tuolumne County — Signage

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

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Last reviewed: July 3, 2026

Overview

This page summarizes what Tuolumne County’s zoning ordinance (Title 17) requires for signs in the unincorporated areas. The County regulates sign location, size, height, appearance, temporary uses, and limited exceptions; the controlling rules are in Chapter 17.34 (Signs) of the Tuolumne County Zoning Ordinance. See the County’s broader zoning & planning overview and the Development Standards for related site rules and how signs interact with setbacks, landscaping and other standards. The sign rules apply only in unincorporated areas (not within incorporated cities) and are implemented to protect safety and local character while respecting free‑speech limits (§ 17.34.020) .

What the code covers (quick legal anchors)

  • Purpose and intent: § 17.34.020 (regulate signs in unincorporated areas; consistent with Reed v. Gilbert) .
  • Applicability and exemptions: § 17.34.030 (outdoor signs visible from public spaces; governmental traffic signs exempt) .
  • Height & area caps and measuring rules: § 17.34.040 (maximum 36 feet tall; maximum 36 square feet sign face; projecting-sign clearances) .
  • Appearance & prohibited features: § 17.34.050 (no flashing/animated signs, glareproof, historic/scenic character encouraged) .
  • Permitted signs and district differences: § 17.34.070 (detailed allowances by district, temporary signs, gas price exceptions) .
  • Signs allowed only with a use permit: § 17.34.080 (roof signs, large off‑premise signs, sign programs, animated signs by permit) .
  • Traffic hazard prohibition: § 17.34.090 (no signs that obstruct or mimic traffic controls) .
  • Nonconforming signs and removal: § 17.34.100–110 (continuation, removal, restoration rules) .

District-by-district breakdown (what matters for signs)

Below are the concrete, Tuolumne‑County zoning districts as they appear in Title 17, and the sign rules that apply in those districts. Each district list gives purpose, typical uses, and the most relevant sign standards from Chapter 17.34.

C (Commercial)

  • Purpose / typical uses: Retail, restaurants, services serving local trade. (See Article 2 district tables in Title 17.)
  • Sign standards that typically apply: Attached building signs at 1 sq ft of sign area per linear foot of façade (or 36 sq ft minimum allowance if building frontage is <36 ft); one detached sign per business up to 36 sq ft; temporary banners and window signs subject to limits in § 17.34.070(B) .
  • Where it applies: Commercial strips, downtowns and highway frontage in unincorporated areas; design guidelines may overlay; see Design Review if your site is in a discretionary review area.

BP (Business Park)

  • Purpose / typical uses: Office/light industrial, campus‑style development.
  • Sign standards: Same baseline as C districts — attached signage computed by frontage and the standard 36 sq ft detached sign cap; business‑park or multi‑tenant center signs may be treated under the center sign provisions (see table) (§ 17.34.070(B)) .
  • Where it applies: Business/industrial parks outside city limits; verify parking/landscaping siting under Parking and Development Standards.

M (Manufacturing / Industrial)

  • Purpose / typical uses: Industrial operations, warehouses.
  • Sign standards: Allowed building signage as in C, one detached sign up to 36 sq ft; industrial complexes with multiple tenants may use a single freestanding center sign up to 100 sq ft through the center sign rules (§ 17.34.070(B)(9)) .
  • Where it applies: Industrial zoned parcels; verify drive‑through and directional sign counts which can be approved by the Director for circulation and safety (§ 17.34.070(B)(7)) .

MU (Mixed Use)

  • Purpose / typical uses: Ground‑floor retail with housing above or integrated residential/commercial uses.
  • Sign standards: For retail/commercial components the same 1 sq ft per linear foot rule applies; residential‑oriented signs in mixed use projects are limited consistent with both the residential and commercial subsections — e.g., where residential uses occur, parcel signage in R‑2/R‑3 rules may become relevant (§ 17.34.070(B),(D)) .
  • Where it applies: Mixed‑use developments in unincorporated communities.

K (Recreational)

  • Purpose / typical uses: Parks, recreation facilities.
  • Sign standards: Treated like commercial districts for sign area calculations unless otherwise specified; temporary and community signs allowed per § 17.34.070 .

A (Agricultural / Open Space)

  • Purpose / typical uses: Farming, ranching, rural properties.
  • Sign standards: One sign not over 36 sq ft is allowed per parcel (§ 17.34.070(C)) .
  • Where it applies: Rural unincorporated lands — community or subdivision entrance signs (one per entrance) also allowed up to 36 sq ft (§ 17.34.070(A)(6)) .

R-2 / R-3 (Multi‑family Residential)

  • Purpose / typical uses: Duplexes, small apartments, and larger apartment complexes.
  • Sign standards: One sign not over 2 sq ft per dwelling unit, up to 36 sq ft maximum per parcel (for identification) (§ 17.34.070(D)) .
  • Where it applies: Institutional/residential parcels in unincorporated neighborhoods; flags, temporary event signs and community boards have their own limits in § 17.34.070(A)–(B).

Note: larger or unusual sign proposals (roof signs, off‑premise advertising, animated signs, or sign programs for multi‑tenant complexes) require a use permit under § 17.34.080 and may impose additional design or plan submittal requirements (§ 17.34.080) .

Quick reference table — most decision‑relevant standards

Topic What the County allows (decision‑relevant) Code reference
Maximum sign height 36 ft (measured from average ground beneath sign) § 17.34.040
Maximum sign area (general) 36 sq ft (standard detached/single sign) § 17.34.040
Projecting sign clearances 8 ft minimum over pedestrian way; 16 ft over vehicular way § 17.34.040(C)
Building‑attached signs (C/BP/M/MU/K) 1 sq ft per linear foot of principal building frontage (min 36 sq ft allowance if <36 ft frontage) § 17.34.070(B)(1)
Detached (freestanding) sign per business 36 sq ft § 17.34.070(B)(1)
Multi‑tenant center sign Up to 100 sq ft (one allowed per center; exceptions for multiple frontages) § 17.34.070(B)(9)
Temporary banners (business) Up to 0.5 sq ft per linear foot of frontage; 30 days max per 12‑month period (exceptions for permits) § 17.34.070(B)(3)
Temporary political signs Non‑illuminated; permitted 90 days prior to election, removed within 10 days after § 17.34.070(A)(9)
Gasoline price signs Do not count toward allowed signs; only one detached price sign allowed, up to 24 sq ft, 36 ft height § 17.34.070(B)(5)
Animation / flashing Generally prohibited (moving/rotating/animated/flashing not allowed) § 17.34.050
Signs that create traffic hazard Prohibited; must not obstruct or mimic traffic controls § 17.34.090

Practical guidance / synthesis

  • Start with the 36 sq ft / 36 ft rule. Unless your sign proposal fits an explicit exception (multi‑tenant center, gas price sign, directional/onsite signs, or use‑permit approval) you should design within 36 sq ft and 36 ft height caps (§ 17.34.040; § 17.34.070) .
  • For storefronts in commercial and similar zones, calculate attached sign allowance as 1 sq ft per linear foot of building frontage; if frontage <36 ft you still have up to 36 sq ft of attached sign allowance (§ 17.34.070(B)(1)) .
  • If your property is part of a shopping center or has multiple tenants, consider a sign program or seeking a use permit for a larger integrated sign approach under § 17.34.080 (the Director or Planning Commission may require elevations and architectural plans) .
  • Temporary signs (banners, project signs, subdivision entrance signs and election signs) are explicitly regulated with time limits — check the specific subparts of § 17.34.070 for the allowed durations and sizes .
  • Historic or design‑review areas may impose additional sign design rules; consult the Historic Preservation or Overlay Districts pages and expect potential use‑permit requirements (the code indicates signs in HDP districts require compliance with combining district rules) .

Checklist (what an applicant must satisfy before installing a sign)

  • Confirm the parcel is in an unincorporated area (Title 17 applies) and identify the zoning district (A, C, BP, M, MU, K, R‑2/R‑3, etc.) .
  • Prepare a sign plan showing size (sq ft), height (measurement from average ground), location, materials, and clearance for projecting signs; measure sign area per § 17.34.020 rules and the Diagrams referenced in § 17.62.020 (measurement illustrations) .
  • Verify that the sign design does not include flashing/animated features and is glareproof (appearance/maintenance rules) § 17.34.050 .
  • If proposing roof signs, off‑premise signs, animated signs, or a sign program for a center — apply for a use permit under § 17.34.080 and be prepared to submit elevations and architectural plans .
  • If the parcel is within a Historic Design Preservation (HDP) combining district or design‑review area, obtain any required design review or use permit (see combining district rules) .
  • For signs encroaching into a County road right‑of‑way, secure an encroachment permit from Public Works (the code requires an encroachment permit for off‑site event signage within County rights‑of‑way) .
  • Check whether a Building Permit is also required for structural supports or electrical work; the code expects submittal of sign plans to Community Development and the Building & Safety Division for review (§ 17.60.040, signage plan requirement) .
  • Remove temporary and event signage within the time limits prescribed by § 17.34.070 and keep documentation of any Director approvals (retain permit conditions) .

Risks & Ambiguities

Issue Why it matters What to verify
Sign permit vs. Building permit The zoning code requires a sign plan and may require building‑permit work (found in other departments). The ordinance references Building & Safety review but does not fully describe when Title 24 applies. Verify whether structural or electrical work triggers a Building Permit with the County Building & Safety division (not fully described in Chapter 17.34). Building‑code/ADA signage specifics not spelled out here; consult California Building Standards Code.
Director / discretionary approvals Many exceptions (drive‑through signs, center signs, animated signs by permit) are subject to Director or Use Permit discretion; criteria are not exhaustively listed in the sign chapter. Expect site‑specific review. Confirm what submittals the Director requires for approval and whether the County will treat your sign as a "detached" or "onsite directional" sign (verify with the Community Development Director).
Historic/design review overlays The HDP combining district references special controls for signs; the County allows modifications but also may require a use permit. If located in an HDP or design review district, verify the exact design‑guideline requirements and whether a use permit is required for any sign changes (§ 17.20 and HDP text).
Message/content regulation The ordinance states it will be administered consistent with Reed v. Gilbert and will not regulate content. However, practical enforcement boundaries can be unclear. Confirm with the County planner how they treat time/venue/manner restrictions and whether noncommercial signs are treated identically to commercial signs (§ 17.34.020)
ADA / tactile signage requirements The zoning code does not set ADA tactile sign specifications; these fall under the Building Code and federal/state accessibility law. Consult the Building & Safety Division and the California Building Standards Code for tactile/accessible signage requirements (Not found in Chapter 17.34).

Information Gaps

  • Exact permitting fee schedule and permit form names for sign permits: Not found in retrieved materials; verify with the Community Development Department.
  • Detailed administrative procedures for Director approvals (submission checklists and timelines): Not found in retrieved materials; Verify with the jurisdiction.
  • Specific County guidance on when electrical/structural sign work requires a Building Permit vs. only a sign permit: Not found in retrieved materials; consult Building & Safety.
  • Any current local design guidelines (visual examples or required materials for historic districts) beyond the HDP combining district text: partial references present; request applicable design guidelines from Planning. .

Plain‑English summary

If your property is in unincorporated Tuolumne County, most typical signs must fit within 36 square feet and 36 feet high, storefront signs are generally allowed at 1 sq ft per linear foot of building frontage, animated or flashing signs are not allowed, and several types of larger or off‑premise signs require a use permit — always check Chapter 17.34 and talk to Community Development before installing a sign (§ 17.34.040–080) .

Source References

  • Tuolumne County Zoning Ordinance, Chapter 17.34 (Signs) — § 17.34.010–110 (findings, purpose, applicability, height/area, appearance, permitted signs, signs by use permit, hazards, nonconforming, removal) .
  • Specific permitted sign rules and district breakdowns — § 17.34.070 (permitted signs by district; temporary sign rules; gasoline price sign exceptions) .
  • Use permit sign provisions — § 17.34.080 (roof signs, sign programs, off‑premise signs, animated/banner allowances by permit) .
  • Traffic hazard and illumination controls — § 17.34.090 (no obstruction or mimicry of traffic devices; illumination standard reference to CVC) .
  • Historic Design Preservation (HDP) combining district and relation to sign controls — HDP text referencing required use permits for exterior changes and sign installations (see combining district language) .
  • County requirement to submit a sign plan prior to building permit issuance for certain uses (example: entertainment/alcohol use standards reference) — § 17.60.040 and related permitting notes .
  • For structural/electrical/ADA design of signs, consult the California Building Standards Code (building code materials not contained in Chapter 17) .

Sources

Retrieved passages

  • Tuolumne County Zoning Code (Section 17.62.020) High relevance
  • Tuolumne County Zoning Code (Chapter 17.34) High relevance
  • Tuolumne County Zoning Code (Chapter are) High relevance
  • Tuolumne County Zoning Code (Chapter 14) High relevance
  • Tuolumne County Zoning Code (Section 17.62.050.) High relevance
  • Tuolumne County Zoning Code (section may) Medium relevance
  • Tuolumne County Zoning Code (Chapter shall) Medium relevance
  • Tuolumne County Zoning Code (Chapter 17.34) Medium relevance

Cited sections

  • Tuolumne County Zoning Ordinance, Chapter 17.34 (Signs) — **§ 17.34.010–110** (findings, purpose, applicability, height/area, appearance, permitted signs, signs by use permit, hazards, nonconforming, removal) . (Chapter 17.34)
  • Specific permitted sign rules and district breakdowns — **§ 17.34.070** (permitted signs by district; temporary sign rules; gasoline price sign exceptions) . (§ 17.34.070)
  • Use permit sign provisions — **§ 17.34.080** (roof signs, sign programs, off‑premise signs, animated/banner allowances by permit) . (§ 17.34.080)
  • Traffic hazard and illumination controls — **§ 17.34.090** (no obstruction or mimicry of traffic devices; illumination standard reference to CVC) . (§ 17.34.090)
  • Historic Design Preservation (HDP) combining district and relation to sign controls — HDP text referencing required use permits for exterior changes and sign installations (see combining district language) .
  • County requirement to submit a sign plan prior to building permit issuance for certain uses (example: entertainment/alcohol use standards reference) — § 17.60.040 and related permitting notes . (§ 17.60.040)
  • For structural/electrical/ADA design of signs, consult the California Building Standards Code (building code materials not contained in Chapter 17) . (Chapter 17)
  • TuolumneCounty_ZoningCode.md
  • 2025 California Building Code.md

Frequently asked questions

What is the maximum sign size I can put up in unincorporated Tuolumne County?

The general maximum for a single sign is 36 square feet and 36 feet in height; measurement rules use the average ground level beneath the sign. See § 17.34.040 for height/area and measurement rules .

Can I have a neon or flashing sign for my storefront?

No—except where expressly approved by a use permit, signs with moving, rotating, flashing, blinking, or otherwise animated light are prohibited; the code requires signs to be conservative and glareproof (appearance and maintenance rules) § 17.34.050 . If you want an exception you must pursue a use permit under § 17.34.080 .

How much wall‑mounted sign area is allowed for a business in a C or MU district?

In C, M, BP, MU or K districts a business may have building‑attached signage equal to 1 sq ft of sign area for each linear foot of its principal building frontage (with a 36 sq ft cap applied as the minimum for very short frontages) — see § 17.34.070(B)(1) .

Are gas station price signs counted in my allowable sign area?

Gasoline price signs required by state law do not count toward the standard sign area calculation; the ordinance allows only one detached price sign up to 24 sq ft and up to 36 ft in height, but other sign portions not required by state law do count toward your total (§ 17.34.070(B)(5)) .

Do temporary political or campaign signs have special rules?

Yes. Temporary election signs are permitted 90 days prior to a special, general, or primary election and must be removed within 10 days after the election; such signs must be non‑illuminated (see § 17.34.070(A)(9)) .

If I’m in a Historic Design Preservation (HDP) area, do I need something extra for a new sign?

Possibly. The HDP combining district text says exterior alterations, including installation or placement of new signs, may require a use permit or compliance with adopted design guidelines; verify with the Community Development Department and the HDP rules (§ 17.20 and combining district text) .

Can I install directional signs on my commercial site that don’t count against my signage total?

Onsite directional signs related to traffic circulation may be allowed and typically do not count as detached signs, but they are limited in size (usually 2 sq ft per sign) and may require Director approval (§ 17.34.070(B)(8)) .

Do I automatically need a Building Permit to install a sign?

Not always. The zoning ordinance requires a sign plan and notes that building permits may be required when structural or electrical work is involved; contact the County Building & Safety Division to determine whether your sign requires a Building Permit (sign plan submittal is referenced in operational standards for some uses, § 17.60.040) .

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