Norco — Signage

Last reviewed: July 2, 2026

Overview

This page summarizes how the City of Norco regulates signage in the local zoning/planning ordinance (Chapter 18.37). It explains who may place what types of signs, the common numeric limits (area, height, setback), the application/approval routes, and where rules differ by zoning district. For development coordination check the city's rules on parking, Norco Development Standards (setbacks), Norco Design Review, Norco Overlay Districts, Norco ADUs, and structural/installation compliance with the California Building Standards Code; Chapter 18.37 repeatedly requires compliance with other applicable laws and local design controls (§ 18.37.04; § 18.37.12) .

Chapter 18.37 is intended to balance business identification and community character, with special emphasis on Norco’s equestrian/western identity (§ 18.37.02; § 18.37.04) .

How the ordinance is organized (quick map)

• Administration, permit triggers, and appeals — § 18.37.06 .
• Temporary / special-event sign rules and right-of-way limits — § 18.37.10 .
• Permanent sign allowances by district (residential/agricultural/open-space vs commercial/freeway-oriented) — § 18.37.12 and § 18.37.10 .
• Design standards (compatibility, landscaping, illumination) — § 18.37.14 .
• Illegal and nonconforming sign treatment and abatement schedules — § 18.37.16 .

District-by-district breakdown (signage-focused)

Note: the code groups several zoning districts together for sign rules. Below are the districts and the signage provisions that apply to each.

R-1 (Single-Family Residential)

• Purpose & typical uses: residential lots; signage rules in Chapter 18.37 apply where a property contains a nonresidential use (§ 18.37.12(A)) .
• Permitted signs (where nonresidential uses exist): one wall sign per street frontage, maximum area 20 sq ft (can scale up if site ≥ 20 acres to a max of 80 sq ft) and one monument freestanding sign maximum area 20 sq ft and maximum height 5 ft (same acreage increases apply) (§ 18.37.12(A)(1–2)) .
• Home-occupation/agricultural sales: one sign up to 16 sq ft allowed in A-1, R-1, and A-E zones for home occupation or on‑site produce/livestock sales (§ 18.37.11(10)) .
• Where it applies: built-in residential neighborhoods; additional restrictions apply if signs would obstruct pedestrian/equestrian trails or public rights-of-way (§ 18.37.10; § 18.37.12) .

A-E / A-1 / A-2 (Agricultural categories)

• Purpose & typical uses: agricultural uses and low-density development; when nonresidential uses occur, sign allowances are the same as the residential group (see R-1 rules) (§ 18.37.12(A)) .
• Home‑sale, agricultural sale signs and flags have specific allowances; flags limited to a maximum of three official flags unless otherwise permitted (§ 18.37.12; § 18.37.11) .

O-S (Open Space)

• Purpose & typical uses: parks, large open parcels; special freeway sign allowances apply only to very large parcels and then only as an ancillary use (§ 18.37.10) .
• Freeway‑oriented signs (special case): allowed only on parcels ≥ 30 acres and within 250 ft of the freeway right‑of‑way; sign area is set by the Planning Commission based on visibility needs (§ 18.37.10(A)(a)) .

L-D (Limited Development)

• Treated like the residential/agricultural group for sign allowances when nonresidential uses are on the property (§ 18.37.12(A)) .

C-O (Commercial Office) and C-G (Commercial General)

• Purpose & typical uses: neighborhood to regional commercial development.
• Freeway‑oriented signage: for commercial centers > 5 acres, maximum freeway sign area 600 sq ft (designed for up to six tenant panels at a minimum of 100 sq ft each) unless a sign program or conditional use permit provides otherwise; centers < 5 acres or single businesses: maximum 250 sq ft, and eligibility requires the site to be within 660 ft of the freeway right‑of‑way and within 1/2 mile of an off‑ramp (§ 18.37.10(C–D)) .
• Height for freeway signs: 20–35 ft measured from grade; exact height is Planning Commission determination (§ 18.37.10(E)) .
• Other permanent/commercial signs (monument, wall, blade) remain subject to design standards and overall area limits in § 18.37.12 and § 18.37.14 .

Industrial and Specific Plan Areas

• Industrial and specific‑plan districts reference Chapter 18.37; some specific plans or sign programs may supersede default limits (the code repeatedly notes that sign programs and conditional use permits can set different allowances) (§ 18.37.10; § 18.37.06(F)) .

Key numeric standards and types (decision table)

Practical guidance & interpretation (plain-English synthesis)

• Permit first: Most permanent and many temporary signs require a sign permit from the Planning Division; the Planning Director may approve, require Planning Commission review, or send a matter to the Commission; appeals are available to the Commission and City Council (§ 18.37.06) .
• If you want a large freeway-facing sign, plan for a special sign permit and expect the project to be routed to the Planning Commission; exact area and height are discretionary based on visibility and character objectives (§ 18.37.10; § 18.37.06(F)) .
• Design is material: Norco requires signs to reflect the city’s equestrian/western identity where feasible, and freestanding signs must include landscape beds at least twice the sign area so plan site layout and irrigation accordingly (§ 18.37.14) .
• Temporary sign placement in the public right‑of‑way is tightly controlled (6 sq ft, 3 ft height, time limits, and not on medians/horse trails) and generally requires the special event sign permit (and encroachment permit when applicable) (§ 18.37.10) .
• If your proposed sign would be on or near horse trails, expect additional restrictions; many temporary devices are explicitly forbidden within 20 ft of a designated horse trail (§ 18.37.10) .

Checklist

• Confirm the zoning district(s) for the parcel and which Chapter 18.37 rules apply (residential/agricultural vs commercial/freeway) — Verify with the jurisdiction (§ 18.37.12) .
• Determine whether sign is temporary, auxiliary, permanent, or freeway‑oriented and whether a special sign permit is required (§ 18.37.06(F); § 18.37.10) .
• Prepare scaled drawings showing sign area calculation (per sign-area definition), height from natural grade, setbacks from ROW/property lines, and landscaping plan (freestanding signs require landscape area ≥ 2× sign area) (§ 18.37.14; definitions) .
• For ROW signs or anything touching public property, secure special event sign permit and encroachment permit per § 12.08.100 as noted in the sign standards (§ 18.37.10) .
• If sign is illuminated or structural, verify electrical/structural approvals with Building Division and the California Building Standards Code (structural/electrical details not specified in Chapter 18.37) — Verify with the jurisdiction (§ 18.37.12: “all other applicable laws”) .
• Confirm designs avoid prohibited sign types (billboards, animated/flashing signs, fence signs, inflatable advertising without permit) (§ 18.37.12(B)) .

Risks & Ambiguities

Information Gaps

• The uploaded ordinance text documents sign area definition and many numeric limits but does not include the full cross-referenced text of § 12.08.100 (encroachment/ROW permitting) — this needs verification with Public Works or municipal code online. Not found in retrieved materials.
• Detailed structural, anchorage, wind-load, and electrical installation requirements for illuminated signs are not in Chapter 18.37; those technical standards live in adopted building and electrical codes (verify with the Building Division and California Building Standards Code). Not found in retrieved materials.
• The municipal code references exhibits (freeway sign graphics) that were omitted from the uploaded text; check Exhibits 18.37.10‑4 and 18.37.10‑5 in the official code for dimensional examples. Not found in retrieved materials.

Plain-English Summary

Norco’s sign ordinance (Chapter 18.37) lets businesses and property owners use modest wall and monument signs in residential/agricultural zones, sets distinct larger allowances and discretionary review for freeway‑oriented commercial signs, requires a sign permit for most installations, bans billboards and animated/flashing signs, and emphasizes design compatibility with Norco’s equestrian character and landscaping around freestanding signs (§ 18.37.06; § 18.37.10; § 18.37.12; § 18.37.14) .

Source References

• Norco Municipal Code, Chapter 18.37 — Signs: § 18.37.02, § 18.37.04, § 18.37.06, § 18.37.10, § 18.37.12, § 18.37.14, § 18.37.16 .
• Definitions and sign-area computation: Sign definitions and area rules in the code (see the sign definitions block) .
• Freeway‑oriented sign exhibits and design standards referenced in § 18.37.10 (Exhibits 18.37.10‑4 and 18.37.10‑5) — see ordinance text for exhibits .
• Cross references: Right‑of‑way permitting referenced to § 12.08.100 in the municipal code (see §§ 18.37.10 and related) — verify with Public Works for encroachment permit details .
• Wireless facilities prohibition on signage: § 18.57.040(m) (signage prohibited on wireless telecom facilities unless required by law) .

Retrieved passages

• Norco Zoning Code (§ 18.37.14.) High relevance show source text
• Norco Zoning Code (§ 18.37.10.) High relevance show source text
• Norco Zoning Code (Chapter 18.37.) High relevance show source text
• Norco Zoning Code (§ 18.37.14.) High relevance show source text
• Norco Zoning Code High relevance show source text
• Norco Zoning Code (§ 18.37.06.) High relevance show source text
• Norco Zoning Code (§ 18.37.12.) Medium relevance show source text
• Norco Zoning Code (section shall) Medium relevance show source text

Cited sections

• Norco Municipal Code, Chapter 18.37 — Signs: **§ 18.37.02**, **§ 18.37.04**, **§ 18.37.06**, **§ 18.37.10**, **§ 18.37.12**, **§ 18.37.14**, **§ 18.37.16** . (Chapter 18.37)
• Definitions and sign-area computation: Sign definitions and area rules in the code (see the sign definitions block) .
• Freeway‑oriented sign exhibits and design standards referenced in **§ 18.37.10** (Exhibits 18.37.10‑4 and 18.37.10‑5) — see ordinance text for exhibits . (§ 18.37.10)
• Cross references: Right‑of‑way permitting referenced to **§ 12.08.100** in the municipal code (see §§ 18.37.10 and related) — verify with Public Works for encroachment permit details . (§ 12.08.100)
• Wireless facilities prohibition on signage: **§ 18.57.040(m)** (signage prohibited on wireless telecom facilities unless required by law) . (§ 18.57.040)
• Norco_ZoningCode.md

• Official Norco code library