Local zoning · Mono County

Mono County — Signage

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

Last reviewed: July 3, 2026

Overview

Mono County regulates signs in its unincorporated areas through the Land Use Element's sign chapter (Chapter 07 of the County Land Development Regulations). The rules prioritize scenic preservation and traffic/pedestrian safety, list permitted sign types and sizes, set illumination rules, allow a discretionary "design excellence" bonus, and prohibit specific sign types (billboards, portable signs, internally animated signs, etc.) All standards in this page apply only to the unincorporated areas of Mono County. See the county sign intent at § 07.010 for the chapter purpose and policy framework .

Note: this page summarizes and interprets the Mono County sign rules; always verify parcel‑specific questions with the County. See the Mono County zoning & planning overview for general context.

Controlling rules (quick reference)

Intent and scope: § 07.010
Permitted sign types and the summary table: § 07.020 and Table 07.010 (Sign Standard Summary)
General provisions (measurement, illumination, copy changes, shopping-center signing programs): § 07.040 (including 07.040‑B on illumination)
Design excellence (optional up to +25% area): § 07.050
Prohibited signs: § 07.060 (height limits, animated/portable/off‑site advertising, neon/internal lighting limits, etc.)
Nonconforming sign rules: § 07.070 (changes, replacement, abandonment)
Night‑sky / lighting controls that affect signs: Dark Sky rules affecting signage are in Chapter 23 (see § 23.080 — Signs)

When the sign standards refer to other land‑use or area plans, more restrictive area plan rules control (for example, freestanding signs in a scenic highway corridor may require a use permit) — see § 07.010 .

(Links in text: Mono County Zoning & Planning overview, Mono County Zoning, Mono County Land Use, Mono County Development Standards, Mono County Parking, Mono County Design Review, Mono County Overlay Districts, California Building Standards Code, California ADU law)

District-by-district sign summary (what the sign chapter actually records)

Mono County’s sign chapter provides which sign types are permitted in particular land‑use designations in Table 07.010. The chapter itself does not contain full text descriptions of each land‑use designation’s purpose or an exhaustive list of allowed commercial uses for each district; those belong in the Land Use Element and zoning maps (see § 01.060). Where the sign chapter lists a district, the table is the controlling reference for permitted sign types and numerical limits.

Below are district subsections that extract the sign‑specific rules the sign chapter ties to each designation. For district purpose/typical uses, the sign chapter does not reproduce the land‑use definitions; those are Not found in retrieved materials and must be verified in the County Land Use Designations and zoning maps. See § 01.060 and the County zoning pages for that information .

ER (Estate Residential)

What the sign chapter controls here: Table 07.010 lists awning, projecting/hanging, and certain pedestrian‑scale identification signs as permitted in ER. See Table 07.010 and § 07.020 for specifics .
Key dimensional/operational rules you must meet: minimum 8 ft ground clearance for awnings/projecting/hanging signs; projecting signs limited to 3' or 4' from the wall depending on the allowance; maximum sign face sizes for these types are generally 10 sq. ft. (Table 07.010) .
Where it applies: unincorporated parcels designated ER per the County land use maps; consult § 01.030 and § 01.060 for applicability to a specific parcel .
Purpose / typical uses: Not found in retrieved materials (verify with the Land Use Element).

RR (Rural Residential)

Permitted sign types: Awning, Projecting/Hanging, other modest identification signs shown in Table 07.010 .
Dimensional standards: minimum 8 ft clearance; projecting/hanging sign area ≤ 10 sq. ft. and projection limits as listed in Table 07.010; freestanding/monument sign rules may be more restrictive (see § 07.010 note on scenic corridors) .
Purpose / typical uses: Not found in retrieved materials (verify with Land Use Element and maps).

RU (Rural)

Permitted sign types: Awning, Projecting/Hanging, and other small identification signs per Table 07.010 .
Dimensional standards: same minimum clearances and size caps for awning/projecting/hanging signs (typically 10 sq. ft.) .
Purpose / typical uses: Not found in retrieved materials.

MFR (Multi‑Family Residential)

Permitted sign types: Projecting/Hanging and residential identification signs (multifamily identification allowed up to 20 sq. ft. attached to the building; freestanding monument signs are subject to Director review) — see § 07.020 and Table 07.010 .
Dimensional standards: multifamily project ID sign max 20 sq. ft. (attached). Other projecting/hanging limits (≤ 10 sq. ft., 8 ft clearance) apply to ground-floor commercial uses where relevant .
Purpose / typical uses: Not found in retrieved materials.

SP (Specific Plan areas)

Permitted sign types: Awning, Projecting/Hanging, and other types shown in Table 07.010; SP areas may have additional area‑plan rules that are more restrictive — see § 07.010 .
Dimensional standards: follow the numeric caps in Table 07.010; design excellence bonus per § 07.050 may be applied by the Director .
Where it applies: parcels located in an adopted Specific Plan in unincorporated Mono County; check the applicable Specific Plan for any overriding rules (see § 07.010) .

AP (Agricultural & Public / Accessory Planned)

Permitted sign types: Awning, Projecting/Hanging and other small identification types listed in Table 07.010 .
Dimensional standards: awning and projecting/hanging limited as in the summary table (generally 10 sq. ft., 8 ft minimum clearance) .
Purpose / typical uses: Not found in retrieved materials.

C (Commercial)

Permitted sign types: Changeable copy / marquees, awning, projecting/hanging, window signage, and other commercial identification signs are explicitly recognized for C districts in Table 07.010; changeable copy allowed but area counted against overall allotment (max 20 sq. ft. for changeable copy) .
Dimensional standards: Changeable copy ≤ 20 sq. ft. (counts against overall sign area), projecting/hanging/awning ≤ 10 sq. ft. with 8 ft clearance, maximum sign height generally 20 ft for some freestanding types per the summary table; verify specific freestanding allowances in Table 07.010 .
Other design rules: illuminated signs must use indirect illumination except for channel letters and neon/internal lighting is limited and subject to Director approval (§ 07.040‑B) .

SC (Service Commercial / Scenic Commercial)

Permitted sign types: service/scenic districts are shown as permitting changeable copy, awning, projecting/hanging and other identification signs in Table 07.010 .
Dimensional and lighting rules: same numeric caps as commercial; neon/internal illumination restricted per § 07.040‑B and Dark Sky Chapter 23 may further limit lighting for signs in some areas (see § 23.080) .
Area-plan overlays (e.g., scenic corridors) may require a use permit for freestanding signs — see § 07.010 .

IP (Industrial Park) and I (Industrial)

Permitted sign types: Table 07.010 includes projecting/hanging and industrial identification signs in IP and I for wall‑mounted and projecting signage; see Table 07.010 for which sign types are specifically permitted .
Dimensional standards: projecting/hanging caps (≤ 10 sq. ft.) and projection limits (3' or 4') apply; check Table 07.010 for specific permitted heights for freestanding signs, if any .

Key standards table (decision-relevant)

Sign Type	Typical Max Size	Typical Max Height / Projection	Where permitted (examples)	Code Reference
Awning / Canopy sign	10 sq. ft.	Min 8 ft ground clearance	ER, RR, RU, SP, AP, C, SC per table	Table 07.010; § 07.020
Projecting / Hanging sign	10 sq. ft.	Min 8 ft clearance; projection usually ≤ 3' (some allowances 4')	ER, RR, RU, MFR, SP, AP, C, SC, IP, I	Table 07.010; § 07.020
Changeable copy / Marquee	20 sq. ft.	Measured within overall sign area cap	Commercial districts (C, SC) (one per business)	Table 07.010; § 07.020
Real estate sign	4 sq. ft. (≤10 ac); 12 sq. ft. (>10 ac)	4' (≤10 ac); 8' (>10 ac); min setback 5' (≤10 ac); 20' (>10 ac)	All districts (one per parcel)	Table 07.010; § 07.020
Change to sign area (Design Excellence)	Up to +25% bonus possible	N/A — discretionary	Any new permitted sign (except real estate, temporary or safety signs)	§ 07.050 (Design excellence)
Prohibited types	—	Signs over 20 ft tall; animated/flashing; portable signs; billboards; attachment to utility poles; tree removal to increase visibility	All unincorporated areas	§ 07.060 (Prohibitions)
Illumination rules	Indirect lighting preferred; channel letters exception; neon/internal lighting limited subject to Director approval	Lighting limits + Dark Sky constraints	All districts; Dark Sky Chapter 23 may further restrict lit signs	§ 07.040‑B; Chapter 23, § 23.080

(See Table 07.010 and the full sign chapter for additional sign types, window sign rules, director plaque sizes, and the department review levels for each sign type) .

Practical guidance & interpretation notes

Building/structural permits: the county notes some signs require a Building Division permit; structural and electrical requirements may also bring Title 24/California Building Standards Code into play — verify building/permitting requirements with the County Building Division and the California Building Standards Code .
Lighting: the sign chapter requires indirect illumination for most lit signs and restricts neon/internal lighting unless integrated with an architectural theme and approved by the Director (§ 07.040‑B) — Dark Sky Chapter 23 imposes additional limits on light trespass and upward light, and specifically addresses signage lighting in § 23.080 .
Nonconforming signs: existing (pre‑ordinance) signs can continue under § 07.070, but you cannot expand area/lighting or move nonconforming signs; replacement rules depend on degree of damage or discontinuance .
Director Review & Programs: larger projects (shopping centers, malls, new multifamily >4 units or projects with >4 shops/offices) must submit a total signing program with use permit applications per § 07.040‑D . Design excellence bonus is discretionary under § 07.050 .

Links for related county processes you will commonly need: design review, parking, overlay districts, and the County Zoning and Land Use pages.

Checklist

Confirm the parcel is in an unincorporated Mono County district and identify the land‑use designation (see § 01.030 / § 01.060) .
Verify the sign type is listed as permitted in Table 07.010 for that designation (e.g., awning, projecting, changeable copy) and note the maximum area/height/clearance from Table 07.010 and § 07.020 .
Check illumination restrictions: must be indirect unless channel letters or Director‑approved integration with theme (§ 07.040‑B) and confirm Dark Sky constraints (Chapter 23, § 23.080) if applicable .
Determine whether a Building Division permit or electrical/structural plan is required (county Building Division + California Building Standards Code) .
For non‑standard size or greater visual impact, consider applying for a design excellence allowance under § 07.050 (up to +25% area) .
Confirm the sign does not fall into a prohibited category in § 07.060 (e.g., animated/portable/billboard, attachment to utility poles) .
If the property is in a scenic corridor, overlay, or area plan, confirm whether a use permit or additional restrictions apply (see § 07.010) .
If replacing/repairing an existing sign, check nonconforming rules under § 07.070 to see if restoration is permitted or if full conformance is required .

Risks & Ambiguities

Issue	Why it matters	What to verify
Area plans / scenic corridors may be more restrictive	County sign chapter expressly defers to more restrictive area plans and may require use permits for freestanding signs in scenic corridors (example given in § 07.010)	Confirm whether the parcel sits in an area plan, scenic overlay, or scenic highway corridor; verify permit triggers with Community Development Director (§ 07.010)
District “purpose” / permitted uses not in Chapter 07	Chapter 07 lists which sign types are allowed by district but does not define the land‑use designation's uses or zoning rules	Check the Land Use Element, the Land Use Designations (§ 01.060), and the County zoning maps to determine whether the proposed commercial use itself is permitted on the parcel
Lighting: County chapter vs. Dark Sky overlay	Sign illumination rules in § 07.040‑B permit indirect lighting but Dark Sky Chapter 23 can impose separate limits (footcandles, cutoff, etc.)	Confirm both § 07.040‑B and Chapter 23, § 23.080 apply and get Director input for neon/internal lighting approvals
Whether Building Division permit is required	Structural or electrical attachments may require building permits and compliance with state code	Verify with Mono County Building Division and the California Building Standards Code; County sign chapter notes some signs need Building Division permits
Nonconforming sign replacement rules	Replacing or repairing a nonconforming sign may force full conformance if destruction exceeds thresholds (§ 07.070)	If sign was existing, confirm age/status and replacement rules in § 07.070 before changing copy, location, or lighting

Plain-English Summary

If you own or operate a business in unincorporated Mono County, the County’s sign rules (Chapter 07) say which small, pedestrian-scale sign types are allowed in each land‑use district, cap sizes (many at 10 sq. ft. for awning/projecting signs), require an 8‑ft minimum clearance over sidewalks, prefer indirect lighting, prohibit billboards/animated/portable signs, and let the Director grant modest design bonuses — check the Table 07.010 and the chapter sections before you build or replace a sign .

Source References

Mono County Land Development Regulations — Chapter 07 (Signs), including § 07.010, § 07.020, § 07.030, § 07.040, § 07.050, § 07.060, § 07.070, and Table 07.010 (Sign Standard Summary) filefilefilefile.
Mono County Land Development Regulations — Chapter 23 (Dark Sky Regulations) and § 23.080 (Signs) (lighting limits affecting signage) .
Mono County Land Use Element / General Provisions (application to unincorporated land, Land Use Designations) — § 01.030, § 01.060 .
California Building Standards Code (state building code / Appendix H on signs) — referenced where structural/electrical/building permits apply .

Sources

Retrieved passages

Mono County Zoning Code (chapter to) High relevance
Mono County Zoning Code High relevance
Mono County Zoning Code High relevance
Mono County Zoning Code (Section 07.030) High relevance
Mono County Zoning Code (CHAPTER 07) High relevance
Mono County Zoning Code Medium relevance
Mono County Zoning Code (chapter may) Medium relevance
Mono County Zoning Code (Chapter 07) Medium relevance

Cited sections

Official Mono County code library

Frequently asked questions

What sign types are allowed in unincorporated Mono County?

Mono County’s sign chapter (Chapter 07) lists permitted types and the districts where they are allowed. Common permitted types include awning/canopy, projecting/hanging, window, changeable copy/marquee (commercial districts), and limited real‑estate signs; the numeric limits and where each type is allowed are summarized in Table 07.010 and in § 07.020 .

How large can my sign be in a commercial (C) area in Mono County?

Size caps depend on sign type. For example, changeable copy/marquees are limited to 20 sq. ft. (and count against the overall sign area); many awning or projecting signs are limited to 10 sq. ft.; the sign summary and precise district allowances are in Table 07.010 and § 07.020 .

Do signs in Mono County have lighting restrictions?

Yes. Signs should be indirectly illuminated where lit; neon and internal lighting are prohibited unless the Director approves integration with an architectural/design theme (§ 07.040‑B). Additionally, Dark Sky Chapter 23 places further limits on sign illumination (see § 23.080) that may reduce allowable light levels or fixture types in some areas file.

Are billboards allowed in unincorporated Mono County?

No. Off‑site advertising signs or billboards are explicitly prohibited in § 07.060 of the sign chapter .

Can I get a larger sign than the numeric caps in the table?

Possibly. The Director may award additional sign area (up to 25% above the stated maximums) for signs demonstrating "design excellence" under § 07.050, but this is discretionary and judged on materials, construction, color, and relationship to building/community .

What happens if I have an existing (pre‑ordinance) sign that doesn’t meet current rules?

Nonconforming signs can often remain but cannot be expanded, moved, or increased in lighting intensity. If the sign is discontinued for six months or more, or destroyed beyond certain thresholds, you may be required to bring it into conformance per § 07.070 .

Do I need a building permit for a new sign?

Some signs require a Building Division permit (the ordinance states some signs need Building Division review). Structural/electrical attachments can trigger building permit requirements and compliance with the California Building Standards Code; verify with the Mono County Building Division and the state code as needed file.

Are there special rules for signs in shopping centers or large developments?

Yes. New proposals that require a use permit and contain more than four residential units or four shops/offices must include a total signing program (number, size, type, elevations) as part of the use permit application per § 07.040‑D .

Can I put a sandwich board (A‑frame) on the sidewalk?

Portable signs, including sandwich boards, are listed among prohibited sign types in § 07.060. A‑frame/sandwich board signs are not permitted as a general matter under the sign chapter; verify location‑specific exceptions with the Director (but the rule is a prohibition in the chapter) .

If my parcel is in a scenic corridor or overlay, do different sign rules apply?

Yes. The County sign chapter defers to more restrictive area plans and specifically notes that freestanding signs in a scenic highway corridor may require a use permit; always verify overlay/area plan requirements for your parcel (see § 07.010) .

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