Local zoning · Blythe

Blythe — Signage

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

Last reviewed: July 1, 2026

Overview

Blythe regulates signage under Title 17 Zoning, Chapter 17.26 Signs, comprehensively updated by Ordinance 923 on January 9, 2024. The chapter sets content‑neutral rules for what signs are allowed, where they can go, how big they can be, and how they are reviewed, with specialized rules for the downtown area and for billboards along Interstate‑10. The sign rules interact with broader Blythe Zoning and Blythe Development Standards, and some proposals in the downtown also tie into Blythe Design Review.

How Blythe’s sign chapter is organized

Citywide policies, definitions, measurement, prohibited/exempt signs, and general location/illumination/maintenance rules apply in all zones (Chapter 17.26; see especially 17.26.050, .060, .080–.100). The code emphasizes message neutrality and allows substitution of any non‑commercial message on an otherwise legal sign structure without a new permit .
Zone‑specific allowances then layer on top: permanent signs in multiple‑family residential zones (§17.26.110) and in agricultural, commercial, and industrial zones (§17.26.120) .
Special districts/contexts: downtown area (§17.26.130) and the Interstate‑10 billboard corridor (§17.26.140) .
Special uses: religious assembly, institutional uses, theaters/cinemas/cabarets, and gas stations (§17.26.150; gas stations also reference §17.50.080) .
Murals, semi‑permanent signs, temporary signs, portable A‑frames, and sign‑permit procedures (§§17.26.160–.200) .

Citywide rules that affect every sign

Message neutrality and substitution: Any allowed sign structure may carry any non‑commercial message, without extra approval, provided the structure itself is legal; more rigorous standards prevail in case of conflict (§17.26.050(C),(D)) .
How size/height are measured: Area rules for windows, walls, double‑faced, and 3D signs; height rules differ for building‑mounted vs. freestanding signs (§17.26.090) .
Location/visibility: No freestanding sign within 5 ft of a street right‑of‑way or corner‑cutoff area; no projections into the public right‑of‑way unless specifically allowed and permitted; no off‑premises signs unless this chapter allows them; maintain clear pedestrian/vehicular sightlines (§17.26.100(A)) .
Illumination and glare: Light must be shaded/shielded; no upward‑directed light or undue brightness (§17.26.100(B)) .
Maintenance: Keep signs and supports in good repair (§17.26.100(C)) .
Freestanding sign landscaping: Provide landscaped area at least twice the aggregate sign area; maintain it (§17.26.100(D)) . See also Blythe Landscaping and Screening.
Engineering: Pole/canister reuse requires a California engineer to verify structural integrity (§17.26.100(E)) .
Prohibited signs (selected): off‑premises signs; animated/flashing within 25 ft of or projecting into ROW; roof/eave‑line‑above wall signs; balloon/inflatable displays unless permitted; most neon unless approved as a major ID; advertising vehicles; and any sign not specifically allowed (§17.26.060) .
Exempt signs (no chapter applicability): official notices, city signs, utility/pubic safety signs, unseen interior signs, directional pavement markings (§17.26.070) .
“No sign permit required” categories still must meet all other rules (and other permits may still apply, e.g., electrical), including any applicable California Building Standards Code requirements (§17.26.080(D)) .

District-by-district standards

Multiple‑Family Residential Zones

Purpose and where it applies: Applies on lots zoned for and developed with multiple‑family dwellings (§17.26.110) . Key allowances:

The only permanent signs here are non‑commercial and must use only indirect illumination; no dimension over 6 ft, and no part of any sign higher than 6 ft above grade; wall signs cannot exceed wall height (§17.26.110) .
Complex ID: One building‑mounted or one freestanding sign per entry; up to two per entry if not double‑faced; each up to 24 sq ft (§17.26.110(A)) .
Pedestrian entrance and vehicular entrance directional signs: 9 sq ft max each, within 30 ft of entrances (§17.26.110(B),(C)) .
For complexes with 15+ units: one extra permanent sign per frontage, 6 sq ft max (e.g., rental info) (§17.26.110(D)) .
Up to three additional permanent signs (one freestanding and two building‑mounted combined) not exceeding 24 sq ft aggregate (§17.26.110(E)) . Note: Permanent sign standards for single‑family residential zones beyond the “no‑permit” items below were not found in the retrieved materials.

Typical “no-permit” items in residential zones:

One permanent address/identification sign up to 2 sq ft, affixed to primary structure; one building‑mounted non‑commercial flag up to 5 ft x 3 ft; vehicular directional signs up to 3 sq ft; for‑sale signs per Civ. Code §713 up to 8 sq ft and 4 ft high; and strictly limited temporary non‑commercial signs (§17.26.080(B)) .

Agricultural, Commercial, and Industrial Zones

Purpose and where it applies: Permanent on‑site commercial signage, with aggregate caps that scale by lot size (§17.26.120) . Key allowances:

Freestanding complex ID: One per street frontage, up to 0.25 sq ft per linear foot of frontage (max 96 sq ft). Max height 50 ft; if the lot fronts Interstate‑10, max height 75 ft. Letters min 10 in high; no aggregation across frontages (§17.26.120(A)(1)) .
One building‑mounted tenant sign per business, mounted flush, max height 8 ft; area 1 sq ft per linear foot of tenant frontage (§17.26.120(A)(2)) .
Up to two additional building‑mounted signs per building (max one per side), each at 1 sq ft per linear foot of street frontage and installed within 2 ft of the top of the building face (§17.26.120(A)(3)) .
One under‑canopy sign per business, only where the tenant fronts a parking lot or street; 3 sq ft max; no illumination (§17.26.120(A)(4)) .
One pedestrian‑entrance directional sign per entrance to a multi‑tenant building/complex; 18 sq ft max; height no more than wall height or 6 ft if freestanding; direct or indirect illumination allowed (§17.26.120(A)(5)) .
Window signs: one permanent window sign per window, applied/affixed inside the glass (§17.26.120(A)(6)) .
Maximum number: 4 signs per business, no more than 2 per building side (§17.26.120(B)) .
Aggregate sign area by lot size (not per business):
- Up to 6,000 sf lot: 50 sq ft aggregate
- 6,001–12,000 sf: 100 sq ft
- 12,001–24,000 sf: 150 sq ft
- 24,001–36,000 sf: 200 sq ft
- 36,001 sf or larger: 250 sq ft (§17.26.120(C)) .

“No-permit” items in commercial/industrial zones (still must meet all other rules):

Temporary window signs covering up to 50% of window area for 14 days, up to 4 times/yr with 30 days between, or 45 days if painted; plus one small building‑mounted sign near the main entrance (4 sq ft, max dimension 3 ft, installed ≤6 ft above grade, no direct illumination); up to six very small permanent signs totaling 3 sq ft; and up to two temporary non‑commercial signs 4 sq ft each (§17.26.080(C)) .

Downtown Area

Purpose and where it applies: Additional design‑sensitivity rules within the “downtown area” defined as Hobsonway from the east side of Ash Ave. to the west side of Third St., plus the blocks from the alley west of Main St. to the alley east of First St., north to Murphy St. and south to Rice St. (§17.26.030, “Downtown area” definition) . Key rules:

Signs must meet both Chapter 17.26 and the City’s downtown design guidelines; rotating/revolving/moving signs are prohibited downtown (§17.26.130) .
Downtown projects submit signage to the Design Review Committee under Chapter 17.64; submittals must show scaled dimensions, locations, materials, colors, and illumination method (§§17.64.064(D), 17.64.065) . Tip: Coordinate early with Blythe Design Review for downtown storefronts.

Interstate‑10 Billboard Corridor

Purpose and where it applies: Limited billboard allowance adjacent to I‑10, subject to Caltrans permitting under the Outdoor Advertising Act (§17.26.140(A)) . Key rules:

Billboards only in commercial and industrial zones; prohibited between Lovekin Blvd. and Intake Blvd., from Chanslor Way to 14th Ave. (§17.26.140(B)) . Note: This is a location‑specific allowance and does not authorize off‑premises signs elsewhere, which are otherwise prohibited (§17.26.060(H)) .

Specific Uses (citywide applicability where the use is allowed)

Religious assembly, institutional uses, theaters/cinemas/cabarets: at minimum, one freestanding sign (not exceeding the zone’s freestanding height limits), up to two building‑mounted signs (one may include an attraction board), and one extra building‑mounted sign per screen or stage up to 8 sq ft each; illumination may be direct or indirect (§17.26.150(A)) .
Automobile service stations: Signs under §17.50.080(A) and (C) need a sign permit; posterboard signs under §17.50.080(B) do not; no permit can be issued contrary to Chapter 17.50 (§17.26.150(B)) .

Temporary, Semi‑Permanent, and Portable signs (all zones unless stated)

Semi‑permanent: Up to 1 year, then remove within 10 days after the event/use ends; 32 sq ft max each; aggregate 64 sq ft; max height 8 ft if freestanding; up to 10 total; time extension up to 1 year possible (§17.26.170) .
Temporary: Max 60 consecutive days, no reposting for 90 days; in commercial/industrial zones: each sign up to 32 sq ft, total 32 sq ft per lot; height limits tied to building eave/second floor; spacing rules (≥200 ft between identical/substantially similar signs and not simultaneously visible at city boundaries); “grand opening” banner allowed once within 6 months of opening, for 60 days, ≤32 sq ft, not illuminated (§17.26.180) .
Portable A‑frames (commercial zones): One per business; max 3 ft wide by 4 ft high; place directly adjacent to the business; keep 5 ft from streets and corner cutoffs; maintain a 6 ft sidewalk clearance; display only during business hours; permittee must indemnify the City (§17.26.190) .

Murals on private property

Original art murals are encouraged but cannot include commercial advertising; murals installed before adoption are legal nonconforming and must be maintained (§17.26.160; grandfathering at §17.26.160(F)) . For broader nonconforming rules, see Blythe Nonconforming Uses.

Quick reference: selected standards

Context	What’s allowed	Key dimensional limits	Illumination	Code Reference
Multiple‑family residential	Complex ID, entry/directional, rental info, plus up to 3 additional non‑commercial signs	Max 6 ft tall; Complex ID 24 sq ft; entry/directional 9 sq ft; rental info 6 sq ft	Indirect only	§17.26.110
Ag/Commercial/Industrial	1 freestanding per frontage; tenant/building signs; 1 under‑canopy per tenant; pedestrian entrance sign; window signs	Freestanding: 0.25 sf/LF (≤96 sf), 50 ft height (75 ft on I‑10 frontage); tenant/building signs: 1 sf/LF; under‑canopy 3 sf; entrance 18 sq ft/≤6 ft tall	Direct or indirect unless noted; under‑canopy not illuminated	§17.26.120(A)–(C)
Aggregate area (ag/com/ind)	Lot‑wide cap	50/100/150/200/250 sq ft by lot size tiers	—	§17.26.120(C)
Downtown area	Must meet sign chapter and downtown design guidelines; no rotating/revolving/moving signs	—	Per chapter/guidelines	§17.26.130; Ch. 17.64
Temporary signs (com/ind)	Time‑limited on‑site temporary signs; grand‑opening banner	32 sq ft each; lot total 32 sq ft; 60 days, then 90‑day gap; banner ≤32 sq ft for 60 days	Banner not illuminated	§17.26.180
A‑frames (commercial)	One portable A‑frame per business with permit	3 ft x 4 ft; 6 ft clear path; 5 ft from street/corner	Not specified; hours‑limited	§17.26.190
Prohibited citywide	Off‑premises (except I‑10 billboards), roofline‑above signs, many animated/neon, balloon/inflatable, advertising vehicles	—	—	§17.26.060

Process and submittals

Most permanent, semi‑permanent, temporary, and portable signs need a sign permit unless specifically exempted; the Planning Director is the approval authority (§17.26.200(A)–(D)) .
Submittals include the City sign application, fees, owner/lessor consent, a “statement of responsibility” for semi‑permanent/temporary/portable signs, and plans showing elevations, locations, and building elevations with signs (§17.26.200(E)) .

Practical guidance and comparisons

The aggregate area caps in agricultural, commercial, and industrial zones are lot‑wide, not per tenant—plan tenant sign allocations early to avoid exceeding the 50–250 sq ft lot cap (§17.26.120(C)) .
On I‑10 frontage, a freestanding ID sign can reach 75 ft—a rare allowance—while elsewhere the cap is 50 ft (§17.26.120(A)(1)) .
Downtown signs must meet both the sign chapter and adopted design guidelines, and rotating/revolving signs are banned—factor this into storefront branding plans (§17.26.130) .
Keep window temporary signage within the “no‑permit” limits (e.g., 50% of window for 14 days, 4 times/yr) to avoid permit timing on promotions (§17.26.080(C)(1)) .
Always check sidewalk clearance and corner visibility before placing A‑frames; violations can be summarily removed (§17.26.100(A)(4)) . This also aligns with safe access expectations under Blythe Parking.

Checklist

Confirm your site’s zone and whether you are in the defined downtown area or adjacent to Interstate‑10 (§§17.26.030 “Downtown area”; 17.26.140) .
Select a sign type allowed in your zone (e.g., tenant wall sign, freestanding, under‑canopy, window) and ensure it is not among the prohibited types (§§17.26.060; 17.26.110–.120) .
Size your sign within per‑sign limits and your lot’s aggregate sign area cap (where applicable) (§17.26.120(A),(C)) .
Verify location rules: ≥5 ft from ROW/corner‑cutoff; no projection into ROW unless allowed and permitted; maintain 6 ft sidewalk clearance for A‑frames (§§17.26.100(A); 17.26.190(C)) .
Confirm illumination is shielded and not unduly bright; neon is restricted unless a major ID sign (§§17.26.100(B); 17.26.060(O)) .
Prepare required submittals (application, fees, consent, plans) and obtain a sign permit unless your sign fits a “no‑permit” category (§17.26.200; §17.26.080) .
For downtown projects, integrate the adopted downtown design guidelines and be ready for design review (§§17.26.130; 17.64.064–.065) .
For I‑10 billboards, secure Caltrans OAA permits and verify you’re outside the stated prohibited stretch (§17.26.140) .

Risks & Ambiguities

Issue	Why it matters	What to verify
Aggregate area vs. tenant allocations	Lot‑wide caps (50–250 sq ft) can be exhausted by early tenants, constraining later ones (§17.26.120(C))	Plan a master sign program; confirm measurements per §17.26.090 and count toward the lot cap
Downtown guideline details	The chapter requires conformance to adopted guidelines, but details aren’t in §17.26.130	Obtain the current downtown design guidelines via Blythe Design Review; Verify with the jurisdiction
Off‑premises messaging	Off‑premises signs are generally prohibited, except specific I‑10 billboards (§17.26.060(H), §17.26.140)	Confirm your message is on‑site; billboard locations require Caltrans permit and must avoid the prohibited segment
Neon and animated signs	Many neon and animated types are restricted citywide (§17.26.060(F),(O))	If neon is desired as “major ID,” discuss early with staff; provide illumination specs per §17.26.100(B)
A‑frame placement in public ROW	Misplaced A‑frames can be removed and create liability (§§17.26.100(A)(4); 17.26.190)	Maintain clear 6 ft path; keep 5 ft from streets/corners; indemnification applies on permit
Single‑family residential permanent signs	The chapter gives “no‑permit” allowances but no separate permanent sign menu for SFR zones in retrieved text	Not found in retrieved materials; Verify with the jurisdiction

Plain-English Summary

Blythe’s sign rules set clear size, height, and placement limits that vary by area: apartments get small, non‑commercial ID/directional signs; commercial/industrial sites get a mix of wall, freestanding, under‑canopy, and window signs capped by lot size; downtown adds design rules; and I‑10 has tightly controlled billboard locations. Keep signs out of the right‑of‑way, control glare, landscape freestanding bases, and track your site’s aggregate square footage. Most signs need a permit, but some small window, address, and time‑limited temporary signs do not.

Source References

Title 17 Zoning, Chapter 17.26 Signs (Ord. 923, Jan. 9, 2024): Findings/Purpose/Policies/Definitions (§§17.26.010–.050) ; Prohibited (§17.26.060) ; Exempt (§17.26.070) and No‑Permit (§17.26.080) ; Measurement (§17.26.090) ; Citywide rules (§17.26.100) ; Multi‑family (§17.26.110) ; Ag/Commercial/Industrial (§17.26.120) ; Downtown (§17.26.130) ; Billboards (§17.26.140) ; Specific uses (§17.26.150) ; Murals (§17.26.160) ; Semi‑permanent (§17.26.170) ; Temporary (§17.26.180) ; Portable A‑frames (§17.26.190) ; Permits (§17.26.200) .
Chapter 17.64 Design Review Committee (downtown design implementation program), including signage plan submittal (§§17.64.063–.065) .
Automobile Service Stations signs cross‑reference (§17.50.080) via §17.26.150(B) .

Sources

Retrieved passages

Blythe Zoning Code (Section 17.12.050) High relevance
Blythe Zoning Code (Section 17.12.050) High relevance
Blythe Zoning Code (§ 2) High relevance
Blythe Zoning Code (chapter or) High relevance
Blythe Zoning Code (§ 2) High relevance
Blythe Zoning Code (section 17.50.080) High relevance
Blythe Zoning Code (§ 2) High relevance
Blythe Zoning Code (chapter and) High relevance
Blythe Zoning Code (§ 2) High relevance
Blythe Zoning Code (§ 2) High relevance
Blythe Zoning Code (§ 2) High relevance

Cited sections

Official Blythe code library

Frequently asked questions

What signs can a business have in a Blythe commercial zone?

Most businesses can have up to four signs, no more than two on any one building side. Common types include one freestanding sign per street frontage, tenant wall signs, an under‑canopy sign, and window signs. Size and height vary by type, with lot‑wide aggregate caps from 50–250 sq ft depending on lot size (§17.26.120) .

Are A‑frame sandwich boards allowed on the sidewalk in Blythe?

Yes—one A‑frame per business in commercial zones, with a portable sign permit. They must be placed directly adjacent to the business, maintain a 6 ft clear pedestrian path, stay 5 ft back from streets and corner cutoffs, and be removed daily after business hours (§17.26.190) .

What are the rules for signs in Blythe’s downtown?

Downtown signs must comply with Chapter 17.26 and the adopted downtown design guidelines; rotating/revolving/moving signs are prohibited. Signage plans are reviewed through the Design Review Committee under Chapter 17.64 (§§17.26.130; 17.64.064–.065) .

How big can a freestanding shopping center sign be?

One freestanding sign per street frontage is allowed at up to 0.25 sq ft per linear foot of frontage, max 96 sq ft, with 50 ft height. If the lot fronts Interstate‑10, height can be up to 75 ft (§17.26.120(A)(1)) .

Are off‑premises signs allowed in Blythe?

Generally no—off‑premises signs are prohibited citywide. A limited exception exists for billboards adjacent to Interstate‑10 in specified locations, subject to Caltrans permits (§§17.26.060(H); 17.26.140) .

Do temporary “Grand Opening” banners need a sign permit?

Yes. Within six months of a business opening, one banner per building street frontage can be permitted for up to 60 days; max 32 sq ft; not illuminated (§17.26.180(H)) .

What non‑permit signs can I post in a commercial storefront?

Temporary window signs covering up to 50% of the window can be posted for 14 days up to four times per year (or 45 days if painted). You may also have a small building‑mounted sign near the main entrance (≤4 sq ft) and up to six tiny permanent signs totaling 3 sq ft (§17.26.080(C)) .

Can apartment complexes have illuminated signs?

Only indirect illumination is allowed for permanent signs in multiple‑family residential zones. Size and height are tightly limited (e.g., 24 sq ft complex ID, 9 sq ft directional signs) (§17.26.110) .

Are neon or animated signs allowed?

Animated/flashing signs near or projecting into the right‑of‑way are prohibited, and neon signs are prohibited except those specifically approved as an activity’s major identification sign (§17.26.060(F),(O)) .

Who approves sign permits in Blythe, and what do I submit?

The Planning Director is the approval authority. Submittals include the City application, fees, owner/lessor consent, a removal‑responsibility statement for temporary/semi‑permanent/portable signs, and scaled plans showing elevations, locations, and illumination (§17.26.200) .

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