Westminster — Signage

Last reviewed: July 3, 2026

Overview

This page summarizes how signs are regulated in the City of Westminster under the Westminster Zoning Code (Title 17). It explains the Chapter that controls signs, the district-level caps and special provisions (including electronic billboards and master sign plans), and practical steps applicants must follow. For rules about setbacks, parking, or building permits referenced here see the Westminster Development Standards, Parking, and Design Review pages.

Chapter and controlling rules

• The City’s sign system is codified in Chapter 17.330 — Signs of the Westminster Zoning Code (Title 17). See the Chapter purpose and how the rules apply in § 17.330.005 and § 17.330.010.
• Title 17 itself is the Westminster Zoning Code (Title 17 of the Westminster Municipal Code). See § 17.100.005.

Key takeaways (plain): every sign must conform to the City’s tables and design standards in Chapter 17.330; some districts allow larger freestanding signs, others allow only very small residential identification signs; electronic/changeable-copy signs are limited and often require elevated discretionary review. See the district-by-district breakdown below and consult the Chapter tables and standards cited.

District-by-district sign standards

Below each district heading I summarize the district purpose/typical uses (as established in the Zoning Code), then the sign-specific rules that matter most (maximum area/height/illumination and where to find the numeric caps). District descriptions are taken from the Zoning District table and signage Tables in Chapter 17.330; cite numbers are included with each rule.

Note: The Zoning Districts are established by Table 2‑1; see § 17.200.010 for the official district names and purposes. Sign-area and sign-type permissions are drawn from the Chapter 17.330 tables (Table 3‑9, Table 3‑10, Table 3‑12) and the associated standards.

R1 (Single‑Family Residential)

• Purpose / typical uses: Single‑family homes and accessory residential uses per § 17.200.010.
• Key sign rules: residential identification signs are strictly limited — the signage tables list very small maximums for R1 (Table 3‑9 shows 4 sq ft as the maximum freestanding and 4 sq ft building sign allowance in R1). Confirm parcel specifics with the Planning Division. See § 17.330.085 and the computation rules in § 17.330.020.

R2 / R3 / R4 / R5 (Multi‑Family Residential / RM)

• Purpose / typical uses: Multiple‑family residential districts (density bands R2–R5 described in Table 2‑1).
• Key sign rules: grouped as RM in the sign tables. Table 3‑9 indicates larger but still modest allowances (for example 50 sq ft is the table value shown for RM for freestanding and building where applicable). Illumination and changeable copy are generally not permitted in residential districts; see Table 3‑12 and § 17.330.085.

CR, C1, C2, CM (Commercial districts)

• Purpose / typical uses: neighborhood and general commercial activity (Table 2‑1 lists CR, C1, C2, and CM).
• Key sign rules: commercial zones permit the largest business identification signs. Table 3‑9 shows C-class allowances with examples such as freestanding up to 500 sq ft (district-column labelled C) and building sign area up to 200 sq ft or a frontal-area percentage cap (Table 3‑9/3‑12 — see § 17.330.085). Changeable copy and external lighting are allowed in many commercial districts but animated or exposed‑bulb/neon illumination is prohibited in general; see Table 3‑12 and the design limitations in § 17.330.085.

M1 / M2 (Light and Medium Industrial)

• Purpose / typical uses: industrial and manufacturing uses (Table 2‑1).
• Key sign rules: industrial districts (table column labelled I) have mid-range allowances (Table 3‑9 shows freestanding ~100 sq ft, building signs up to 200 sq ft in many cases) and permit external illumination; changeable‑copy rules vary by use — consult Table 3‑12 and § 17.330.085.

PF / P/SP / Public / Institutional (PF)

• Purpose / typical uses: public/semi‑public uses, parks, etc. (Table 2‑1 identifies PF and related special‑purpose districts).
• Key sign rules: institutional uses are handled with special provisions in Chapter 17.330 (separate notes allow institutional billboards/variations by Conditional Use Permit). See § 17.330.050 (Special Provisions) and the notes to Table 3‑9/3‑12 for institutional exceptions (e.g., electronic billboard thresholds).

MU36 / MU40 (Mixed‑Use)

• Purpose / typical uses: high‑density mixed use downtown/civic center corridors.
• Key sign rules: mixed‑use districts use the sign tables applicable to commercial frontage types; building‑mounted sign percentage caps (e.g., 15% of frontal area for principal uses) appear in Table 3‑9 notes and in § 17.330.085. Verify whether plan‑level design review or a Comprehensive Plan modifies the base table limits (see § 17.560.020 for Comprehensive Plans and design review triggers).

LS, CC, V and other special columns in the sign tables

• The sign tables use several shorthand columns (for example LS, CC, and V) — these correspond to specific zone/land‑use groupings and show higher allowances in center/corridor areas (e.g., CC freestanding 600 sq ft) as shown in Table 3‑9. Always cross‑check the column label with the zoning map and Table 2‑1. See § 17.330.085 and Table 3‑9.

A decision‑focused excerpt table

• The table below pulls the most decision‑relevant numeric caps from Chapter 17.330 (representative districts). For full matrices, see the Chapter tables themselves.

(These figures are the table excerpts shown in the Chapter; consult the full tables and notes in Chapter 17.330 for supplemental rules like frontage-based formulas and per‑site caps.)

Special sign topics & discretionary approvals

• Prohibited sign types: beacons, strings of lights, inflatables, moving/flashing signs, roof signs (except integral roof signs), painted wall signs (except carved wood / temporary window display), portable signs, faded/damaged signs, and others are expressly listed as prohibited. See § 17.330.040.

• Master Sign Plans: required for multitenant developments of three or more businesses, whenever five or more signs are proposed, or for multitenant buildings over one story with a shared entry. See § 17.330.045 for submission rules and required materials.

• Special provisions and special advertising devices: automobile dealerships and other uses have tailored allowances (e.g., limited balloons for dealerships), and a Special Advertising Privilege or Special‑Advertising Permit may be granted where strict findings are met. See § 17.330.050 and § 17.330.055.

• Electronic message boards & billboards: electronic billboards are tightly controlled. Electronic billboards along freeway corridors are allowed as a conditional use in commercial and industrial zones and require a sign permit plus separate CUP review; specific siting, number, size and illumination rules apply in § 17.330.090. Table notes also limit electronic message boards to large sites (notes specify one per site, only on sites 100,000 sq ft or greater except public/institutional, and a minimum 250 ft setback from residential). See § 17.330.090 and the Table 3‑12 notes.

• Nonconforming signs: a separate section covers treatment of existing nonconforming signs; see § 17.330.060 for rules about continuations, repairs, and amortization. Verify specific amortization or repair thresholds with the Planning Division.

• Design standards: the Chapter requires all signs to comply with the City of Westminster Design Guidelines Manual and includes design limitations — e.g., can‑type backlit panels are prohibited (opaque panels or individually cut lit letters only), letters should not occupy more than 75% of the sign panel, and address identification is encouraged. See § 17.330.085 for sign design standards.

• Message/content: sign regulations do not regulate sign copy (commercial vs. noncommercial), except that off‑site commercial copy may trigger discretionary review; the Director interprets unlisted types based on the most similar regulated sign. See § 17.330.005 (A, B, C).

Checklist

• Confirm the property zoning and district (Table 2‑1 / § 17.200.010) and the applicable sign‑table column.
• Calculate sign area & height per the Chapter rules in § 17.330.020 and use the numeric caps in Table 3‑9/Table 3‑10/Table 3‑12 (Chapter 17.330).
• Check prohibited sign types list (§ 17.330.040) and design limits (§ 17.330.085).
• Determine whether a Master Sign Plan is needed (multitenant or five+ signs) per § 17.330.045.
• If proposing an electronic billboard or message board, verify site size minimums and 250 ft residential buffer and prepare for CUP and sign permit per § 17.330.090 and Table notes.
• If proposing an unusual/temporary device (inflatable, portable, off‑site advertising), check § 17.330.050 and the Special Advertising Permit rules § 17.330.055.
• Prepare drawings that follow the City Design Guidelines Manual and include address orientation, lighting controls, concealment of raceways where required, and letter‑area proportions per § 17.330.085.
• Obtain required sign permit(s) from the City (sign permits are required; Chapter describes when sign permits/CUPs/AUPs are needed). See § 17.330.090 for billboards and § 17.330.010 for general applicability.

Risks & Ambiguities

Plain‑English Summary

Westminster’s sign rules live in Chapter 17.330 of the Zoning Code: each zoning district (R‑zones, commercial zones, industrial, PF, mixed‑use) has numeric caps and permitted characteristics in the Chapter tables; prohibited sign types and design limits are spelled out in the same Chapter. Big items to watch are master sign‑plan triggers for multitenant centers, special controls for electronic billboards (site‑size and residential buffers), and the list of expressly prohibited sign types; see § 17.330.005, § 17.330.040, § 17.330.045, and § 17.330.090.

Source References

• Westminster Zoning Code, Title 17 — Title identification and purpose: § 17.100.005.
• Zoning districts (Table 2‑1) and district list: § 17.200.010.
• Chapter 17.330 — Signs: Purpose and interpretive rules: § 17.330.005.
• Applicability; definitions; computation of area and height: § 17.330.010, § 17.330.020.
• English‑language identification requirement (non‑English sign ID): § 17.330.015.
• Prohibited sign types: § 17.330.040.
• Master Sign Plans: § 17.330.045.
• Special provisions (e.g., automobile dealerships): § 17.330.050.
• Special Advertising / Special‑Advertising Permit rules: § 17.330.055.
• Nonconforming signs: § 17.330.060.
• Standards for specific sign types, tables and design rules (Tables 3‑9, 3‑10, 3‑11, 3‑12): § 17.330.085 (and the table notes).
• Electronic billboards and freeway signs (conditional use and permit requirements): § 17.330.090.

Retrieved passages

• Westminster Zoning Code (Title within) High relevance show source text
• Westminster Zoning Code (§ 2) High relevance show source text
• CBC § 2 (Article 4.) High relevance show source text
• CBC § 2 (§ 2) Medium relevance show source text
• Westminster Zoning Code (Title within) Medium relevance show source text
• Westminster Zoning Code (Section shall) Medium relevance show source text
• Westminster Zoning Code (§ 2) Medium relevance show source text
• Westminster Zoning Code (Title within) Medium relevance show source text

Cited sections

• Westminster Zoning Code, Title 17 — Title identification and purpose: **§ 17.100.005**. (Title 17)
• Zoning districts (Table 2‑1) and district list: **§ 17.200.010**. (§ 17.200.010)
• Chapter 17.330 — Signs: Purpose and interpretive rules: **§ 17.330.005**. (Chapter 17.330)
• Applicability; definitions; computation of area and height: **§ 17.330.010**, **§ 17.330.020**. (§ 17.330.010)
• English‑language identification requirement (non‑English sign ID): **§ 17.330.015**. (§ 17.330.015)
• Prohibited sign types: **§ 17.330.040**. (§ 17.330.040)
• Master Sign Plans: **§ 17.330.045**. (§ 17.330.045)
• Special provisions (e.g., automobile dealerships): **§ 17.330.050**. (§ 17.330.050)
• Special Advertising / Special‑Advertising Permit rules: **§ 17.330.055**. (§ 17.330.055)
• Nonconforming signs: **§ 17.330.060**. (§ 17.330.060)
• Standards for specific sign types, tables and design rules (Tables 3‑9, 3‑10, 3‑11, 3‑12): **§ 17.330.085** (and the table notes). (§ 17.330.085)
• Electronic billboards and freeway signs (conditional use and permit requirements): **§ 17.330.090**. (§ 17.330.090)
• Westminster_ZoningCode.md

• Official Westminster code library