Local zoning · Larkspur

Larkspur — Signage

Q: If I run a home‑based business, what sign am I allowed?

Home occupations may have one sign up to 4 square feet , nonilluminated, and subject to the design/height restrictions in § 18.60.060(F) and (H). § 18.60.080; § 18.60.060(F),(H)

Q: Who approves sign permits in Larkspur?

Permits for signs ≤ 6 sq ft are administratively approved by the Community Development Director; signs > 6 sq ft are administratively approved by the Zoning Administrator; unusual types may require a Planning Commission sign exception. § 18.60.030(B)–(C)

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

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Last reviewed: July 2, 2026

Overview

This page summarizes what the Larkspur zoning ordinance (Title 18) requires for signs: what types are allowed or prohibited, permit thresholds and application submittals, area/format rules, coordinated sign‑program rules, and how the different zoning districts point back to the sign chapter. The controlling local standard is Chapter 18.60 (Signs) of the Larkspur Municipal Code (Title 18). See the citywide zoning overview for context at Larkspur's main page. (/us/california/larkspur) § 18.60.010

What the code requires (headlines)

All sign regulation in Larkspur is collected in Chapter 18.60 (Signs); district chapters repeatedly require that “Signs shall be permitted only in accordance with Larkspur Municipal Code Chapter 18.60.” § 18.60.010; district notices e.g. § 18.48.090, § 18.52.090
A sign permit is required for all but the enumerated exempt signs; procedures and permit routing depend on size/type (administrative vs. Zoning Administrator vs. Planning Commission). § 18.60.030
The code sets numeric limits for many temporary/permanent sign types (nameplates, construction, gasoline price, real estate, window signs, gateway signs, etc.) and spells out prohibited characteristics (motion, off‑site signs, roof signs, visible gaseous illumination, vehicle signs, hazards to traffic/exits). See the specific itemized rules in Chapter 18.60. §§ 18.60.050, 18.60.070, 18.60.100

(Links used in this page: see notes about coordinating with parking, development standards, design review, overlay districts, ADUs, and the California Building Standards Code.)

District-by-district breakdown

The Larkspur ordinance organizes the city into named zoning districts in Title 18. Each district chapter either repeats that signs must comply with Chapter 18.60 or points to special rules. Below are the commonly used districts in Larkspur with the sign‑specific implications and the district code references.

Note: in all entries below, when the district chapter does not add special sign sizes or exceptions, the default is to follow Chapter 18.60. Verify any parcel‑specific conditions with the Planning Department. Verify with the jurisdiction.

R-1 (First Residential District)

Purpose / typical uses: low‑density single‑family residential uses, community facilities; ADUs allowed per Title 18. § 18.20.005
Sign rules that apply: District language points applicants to Chapter 18.60 (“Signs shall be permitted only in accordance with Larkspur Municipal Code Chapter 18.60”). § 18.20.085
Key numeric items that matter in residential zones (from Chapter 18.60): nameplate (single‑family) up to 1 sq ft (§ 18.60.050(G)); garage/garage‑sale sign limits; real‑estate small sign allowances for R‑1/R‑2 (see § 18.60.050(K)). §§ 18.60.050(G),(K)

Where it applies: all properties zoned R-1. For design or historic overlay properties see the Heritage/overlay rules. (§ 18.19 / Combining H zone)

R-2 (Second Residential District)

Purpose / typical uses: medium‑density residential, one- and two‑family dwellings; ADUs regulated by Chapter 18.23. § 18.28.005–.020
Sign rules: District requires compliance with Chapter 18.60; nameplate rules and real estate sign allowances in § 18.60.050 apply. § 18.28.090; § 18.60.050(G),(K)

R-3 (Third Residential / Multifamily)

Purpose / typical uses: multifamily residential; design review triggers and multifamily project signage rules apply. § 18.32.090
Sign rules: multifamily nameplate allowance up to 12 sq ft (§ 18.60.050(H)); project gateway signs for developments of five (5)+ units (gateway freestanding up to 50 sq ft or wall up to 100 sq ft) are permitted under specified rules. §§ 18.60.050(H); 18.60.070(B)

C-1 (Restricted Commercial) and C-2 (Commercial)

Purpose / typical uses: street‑oriented retail / commercial and broader commercial uses. See §§ 18.44 (C‑1) and 18.48 (C‑2). § 18.44.010; § 18.48.010
Sign rules: both districts explicitly require that signs comply with Chapter 18.60 (e.g., § 18.44.085; § 18.48.090). Permitted identification rules for places of business (number/mode of display/primary vs. secondary facade rules) are in § 18.60.060 (the principal business sign rules). §§ 18.44.085; 18.48.090; 18.60.060

Practical implications: typical storefront and center signs are controlled by the identification‑sign limits and design criteria in § 18.60.060(H) (design) and by sign‑program provisions if a coordinated program is used. § 18.60.060(H)

SD / GD / TD (Downtown Storefront and Downtown Garden/Transitional Districts)

Purpose / typical uses: downtown mixed commercial/residential, pedestrian scale; historic character emphasis. §§ 18.41, 18.43, 18.45
Sign rules: district chapters say “Signs shall be permitted only in accordance with Chapter 18.60” and design review/historic rules will often control sign appearance more tightly (Design Review and Heritage Preservation Board referrals). § 18.41.130; § 18.41.010; § 18.64.030(11)

Implication: downtown signs are subject to both Chapter 18.60 numeric rules and the design review process; expect tighter review on materials, illumination, and scale. Link to the city's design review page for process details. (§ 18.64)

L-1 (Light Industrial)

Purpose / typical uses: light industrial uses; the district text references Chapter 18.60 for signs. § 18.52.090
Sign rules: industrial/commercial sign allowances follow Chapter 18.60; larger freestanding/center signs are possible via sign programs where applicable. §§ 18.60.060–.070

OS (Open Space), A-P (Administrative & Professional), RMP and other districts

Purpose / typical uses: vary; district chapters include the same pointer: signs must follow Chapter 18.60 and often have design or use restrictions (for example, front‑yard/landscaping rules that can affect freestanding sign placement). §§ 18.49., 18.40., 18.36.*

Quick reference table — decision‑relevant sign standards

Sign type	What the code allows (decision‑relevant)	Permit required?	Code reference
Nameplate — single‑family	1 sq ft maximum	Exempt (no sign permit) if nonilluminated and meets height limits	§ 18.60.050(G)
Nameplate — multifamily	12 sq ft maximum	Exempt (if nonilluminated & height ok)	§ 18.60.050(H)
Home occupation	One sign, 4 sq ft, non‑illuminated	Permit not required beyond conformity (subject to Chapter 18.60 design/height limits)	§ 18.60.080
Construction sign	Single‑family: 6 sq ft; other projects: 32 sq ft	Exempt (temporary; must be removed before occupancy)	§ 18.60.050(B)
Gasoline price signs	14 sq ft per street frontage	Exempt if nonilluminated/within height limits	§ 18.60.050(F)
Center identification sign (business center / gateway)	Freestanding/projecting up to 50 sq ft; wall up to 100 sq ft per street frontage	Permit required; subject to coordinated signing program rules/design limits	§ 18.60.070(A)
Window signs (business ID)	Max 25% of window area or 100 sq ft per place of business (whichever is less); temporary window signs limited in duration	Exempt (subject to limits)	§ 18.60.050(P)
Signs ≤ 6 sq ft	Administrative approval (Community Development Director)	Permit — administrative review	§ 18.60.030(B)
Signs > 6 sq ft	Zoning Administrator approval (may impose more restrictive limits under design criteria)	Permit (ZA administrative)	§ 18.60.030(B); § 18.60.060
Prohibited characteristics	Motion, roof signs, vehicle signs, off‑site signs (except narrow exemptions), visible gaseous illumination over 4 sq ft, hazards to traffic/exits	Not allowed; removal/penalty possible	§ 18.60.100(A),(D),(F),(G),(H)

Application checklist (what an applicant must submit)

Pay the application fee established by City Council resolution (per § 18.60.040(A)). § 18.60.040(A)
Scaled sign drawings showing all faces and supporting structure; for building signs include the building face and all existing/proposed signs. § 18.60.040(B)
Site plan showing business facade widths and locations/sizes of all existing and proposed signs. § 18.60.040(C)
Samples of proposed colors and materials; design must relate to building architecture per § 18.60.060(H). § 18.60.040(D); § 18.60.060(H)
Description of illumination type/amount (if any) — visible gaseous illumination restrictions and other illumination rules apply. § 18.60.040(E); § 18.60.100(H)
If the sign is part of a coordinated signing program, submit the required program materials and be prepared for Planning Commission findings (cohesive design, scale, compatibility). § 18.60.060(I)
Check whether design review is required for the project (sign programs and many business projects require design review). design review. § 18.64.030(10)
Verify whether the subject property is in a combining overlay (e.g., Heritage/“H”) — overlays can add review requirements. overlay districts § 18.19.*

Note: Normal maintenance or copy changes that do not modify design/dimensions are NOT a modification requiring a permit. § 18.60.030(A)

Risks & Ambiguities

Issue	Why it matters	What to verify
Borderless/individual‑letter calculation	Area for borderless signs is calculated by drawing a polygon enclosing all parts — impacts whether a sign exceeds size limits. § 18.60.090	Confirm how the city will measure your sign and provide scaled elevations showing the polygon.
“Sign program” flexibility vs. prohibited signs	Sign programs allow flexibility but cannot authorize characteristics already prohibited (e.g., motion or off‑site advertising). § 18.60.060(I); § 18.60.100(A),(D),(E)	If proposing a sign program, verify the Planning Commission findings needed and whether your proposal would be considered uses permitted under § 18.60.060(I).
Historic/heritage overlay impacts	Properties in the Combining Heritage Preservation District may need Heritage Board review and stricter design criteria — this can change allowable materials and illumination. § 18.19; § 18.64.030(11)	Verify whether the parcel is in the H overlay and whether the Heritage Preservation Board review is required.
Sign permit routing (≤6 sq ft vs. >6 sq ft)	Administrative reviewer differs and ZA/PC may impose more restrictive limits under design criteria, affecting approval time and conditions. § 18.60.030(B); § 18.60.060	Confirm with Planning whether your proposed sign will be handled administratively or require ZA/PC review.
Nonconforming signs (old signs)	Historic nonconforming signs may remain unless modified or removed, but alterations can trigger compliance. § 18.60.110	If the site has an existing oversized sign, verify its legal nonconforming status and what repairs/modifications trigger compliance.
Traffic/visibility safety	The code prohibits signs that interfere with traffic or exceed general height limits; street geometry can make a compliant sign still unsafe/blocked. § 18.60.100(C) referencing § 18.16.090	Coordinate with Public Works/Traffic to confirm placement does not obstruct sightlines or conflict with right‑of‑way rules. See parking where site circulation might matter.

Plain‑English summary

Larkspur centralizes all sign rules in Chapter 18.60: small residential nameplates and certain temporary signs are exempt, most business signs require a sign permit (with administrative thresholds at 6 sq ft), and larger or coordinated programs go through administrative or Planning review. There are clear numeric caps for construction signs, gasoline price signs, gateway signs, and window signage; prohibited features (moving/flashing, roof/vehicle signs, certain illuminated gas signs) are enforced. §§ 18.60.010–.130

Source References

Larkspur Municipal Code — Chapter 18.60, Signs: § 18.60.010 (Purpose); § 18.60.020 (Definitions); § 18.60.030 (Permit requirement & approval); § 18.60.040 (Application); § 18.60.050 (Exempt signs); § 18.60.060 (Permitted identification signs); § 18.60.070 (Business center/gateway); § 18.60.080 (Home occupations); § 18.60.090 (Calculation of area); § 18.60.100 (Prohibited characteristics); § 18.60.110 (Nonconforming); § 18.60.120 (Maintenance); § 18.60.130 (Penalties). § 18.60.*
Sign permit thresholds and application items: § 18.60.030; § 18.60.040. § 18.60.030; § 18.60.040
Exempt sign specifics and numeric caps (nameplates/real estate/window/temporary signs): § 18.60.050. § 18.60.050
Business identification sign rules and design criteria: § 18.60.060 (including coordinated signing programs at subsection (I)). § 18.60.060
Center and gateway sign sizes: § 18.60.070. § 18.60.070
Prohibited characteristics and nonconforming signs: § 18.60.100; § 18.60.110. § 18.60.100; § 18.60.110
District statements referencing Chapter 18.60 (examples): § 18.20.085 (R‑1); § 18.28.090 (R‑2); § 18.32.090 (R‑3); § 18.44.085 (C‑1); § 18.48.090 (C‑2); § 18.52.090 (L‑1). §§ 18.20.085; 18.28.090; 18.32.090; 18.44.085; 18.48.090; 18.52.090
Design review cross‑reference (sign programs are a design review item): § 18.64.030(10). § 18.64.030(10)

If you need the exact text of any quoted subsection or want parcel‑level interpretation (e.g., whether a specific façade counts as a “primary business facade” for sign entitlement), request a PDF extract and I will pull the exact ordinance language and the precise § citation for that parcel. Verify with the City of Larkspur Community Development/Planning for parcel‑specific rulings.

Sources

Retrieved passages

Larkspur Zoning Code (§ 2) High relevance
Larkspur Zoning Code (Title 18) High relevance
Larkspur Zoning Code (Chapter 18.60) High relevance
Larkspur Zoning Code (Section 18.60.060) High relevance
Larkspur Zoning Code (Title 18) High relevance
Larkspur Zoning Code (Section 18.60.070.) High relevance
Larkspur Zoning Code (Title 18) High relevance
CBC § 2 (Section 18.60.050.) High relevance
Larkspur Zoning Code (Chapter 18.60) Medium relevance
Larkspur Zoning Code (Section 18.16.240.) Medium relevance
Larkspur Zoning Code (Title 18) Medium relevance
Larkspur Zoning Code (Chapter 18.41) Medium relevance
Larkspur Zoning Code (Section 18.08.295.) Medium relevance
Larkspur Zoning Code (§ 14) Medium relevance

Cited sections

Official Larkspur code library

Frequently asked questions

Do I need a sign permit to change the copy on my existing business sign?

Changing copy only (no change to design, dimensions or supporting structure) is considered normal maintenance and does not require a sign permit; modifications to appearance or size do require a permit. § 18.60.030(A)

What size nameplate can I put on my single‑family home in Larkspur?

A nameplate for a parcel zoned for single‑family or duplex dwellings may not exceed 1 square foot and is exempt when nonilluminated and meeting height rules. § 18.60.050(G)

If I run a home‑based business, what sign am I allowed?

Home occupations may have one sign up to 4 square feet, nonilluminated, and subject to the design/height restrictions in § 18.60.060(F) and (H). § 18.60.080; § 18.60.060(F),(H)

Who approves sign permits in Larkspur?

Permits for signs ≤ 6 sq ft are administratively approved by the Community Development Director; signs > 6 sq ft are administratively approved by the Zoning Administrator; unusual types may require a Planning Commission sign exception. § 18.60.030(B)–(C)

Can a shopping center use a coordinated sign program to exceed the usual sign limits?

A coordinated signing program can provide limited flexibility for business centers, shopping centers, service stations, vehicle dealerships and movie theaters, but a sign program cannot permit sign types or characteristics expressly prohibited by § 18.60.100 and must meet Planning Commission findings on cohesion and scale. § 18.60.060(I)

Are moving or flashing signs allowed in Larkspur?

No — signs constructed to incorporate windblown materials, moving parts, flashing or the appearance of motion are prohibited (except exempt flags). § 18.60.100(D)

What if my existing sign predates the ordinance and is bigger than today's rules allow?

A sign lawfully erected prior to December 2, 1977 that now exceeds the limitations is treated as legal nonconforming and may remain until it is altered, removed or otherwise ceases to meet the nonconforming criteria. Repairs and conditions that modify appearance can trigger removal or need to conform. § 18.60.110

Can I put a sign on my roof?

No. Signs erected upon any part of a roof or false roof structure are prohibited by Larkspur’s sign rules. § 18.60.100(F)

How is sign area calculated for channel letters or borderless signs?

For borderless signs (individual letters, channel letters), the code requires drawing a single polygon with straight lines and right‑angle corners to enclose all sign parts; that polygon is the sign area used to test size limits. § 18.60.090(D)

Does being in a historic or overlay area change sign review?

Yes. Parcels in the Combining Heritage Preservation District or other overlays may require review by the Heritage Preservation Board and design review; sign programs are explicitly a design review item. overlay districts § 18.19.*; § 18.64.030(10–11)

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