Local zoning · San Joaquin

San Joaquin — Signage

Q: How large can an office tenant’s sign be?

In the Office district the ordinance uses a frontage formula: 1 sq ft of sign area per 2 sq ft of linear building frontage, capped at 30 sq ft (or 60 sq ft for corner locations), plus 12 sq ft in addition per office building — see § 152.05(C) — .

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

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Last reviewed: July 2, 2026

Overview

This page summarizes what the City of San Joaquin's zoning/planning ordinance says about signage: what types are allowed or prohibited, district-by-district allowances, permit triggers, design controls, and non‑conforming sign rules. It is based on the City Code chapters for Signs and the Citywide Development Code; every requirement below is tied to the ordinance text and the controlling § cited. For related rules that interact with signs (site plans, parking, design review, overlays, ADUs, and building-code construction), see the linked local pages referenced inline below.

Key, citywide rules (short)

The city regulates sign size, height, design, location, number and quality as a land use tool to protect public safety and neighborhood character (§ 152.01) — .
A building permit is required for erection, relocation, or construction of signs except where the code expressly exempts a type (§ 152.02) — .
Specific temporary and exempt signs (construction, real‑estate, political, garage sale, fuel price displays) are enumerated in the exemptions subsection (§ 152.03) — .
The code lists prohibited sign types (e.g., roof signs, portable signs, signs that imitate traffic signs, billboards except where expressly allowed) under § 152.04 — .
District‑level allowances and numeric limits for many sign types are found in § 152.05 (Signs allowed by district) — .
New development must show sign location, size, and height on site plans submitted for review under the Development Code § 154.020 (site plan review) — .
Certain large billboards and other special sign uses require discretionary review (DRA) and are limited to specific districts (MSC, M) under § 154.021 — .
Non‑conforming signs that existed legally before the current ordinance are allowed only for maintenance; if the use is discontinued for 90+ days the non‑conforming sign must be removed (§ 154.278) — .

Along the way the code cross‑references design criteria, permit application contents, and how signage ties into overall development standards; see the Development Standards purpose at § 154.290 — .

Urban Reserve; Open Space, Recreation and Public Facilities; Rural Residential

Purpose and typical sign approach:

These largely non‑commercial districts allow limited identification signage appropriate to low‑intensity uses. See § 152.05(A) for specific allowances — .

Key permitted signs and dimensional limits (from the ordinance):

One sign for name/address of resident not exceeding 2 sq ft.
Signs advertising sale of products produced on the property permitted up to 32 sq ft.
Sale/lease signs for the property permitted up to 32 sq ft.
Reference: § 152.05(A) — .

Where this applies: parcels within the Urban Reserve, Open Space, Recreation and Public Facilities, and Rural Residential districts as identified in the zoning map; confirm district on your parcel via the planning department — Verify with the jurisdiction. See the Citywide Zoning page.

(If the project requires a site plan, signs must be shown per § 154.020 — .)

Single‑ and Multiple‑Family Residential

Purpose and typical uses:

Residential identification and neighborhood‑scale signs only; commercial signage is restricted.

Key dimensional standards:

One sign not exceeding 2 sq ft for name/address.
One permanent subdivision or multi‑family entrance sign allowed up to 32 sq ft; if ground mounted the top of the sign may not exceed 4 ft in height.
Reference: § 152.05(B) — .

Notes:

Building permits generally not required for very small exempt signs per § 152.03 and § 152.02; confirm permit requirement for your sign type — .

Office District

Purpose and typical uses:

Professional and small office uses; signage sized to building frontage and tenant identification.

Key dimensional standards:

Sign area: 1 sq ft of sign area per 2 sq ft of linear building frontage, up to 30 sq ft (or 60 sq ft for corner locations).
Each office building is permitted an additional 12 sq ft in addition to frontage allotment.
Reference: § 152.05(C) — .

Where this applies:

Properties zoned Office; confirm your parcel's district on the San Joaquin Zoning map.

Manufacturing (M) and MSC / Commercial centers — what the code says

What is explicit:

The Development Code restricts signs in Manufacturing (M) to directional/identification and allows one freestanding sign per street frontage on a lot; see the Manufacturing‑district language in the Zoning Code — .
Billboards are treated separately: Billboards are limited to the MSC or M district and require DRA if their sign face area exceeds 75 sq ft and/or height exceeds 18 ft (§ 154.021) — .

What is not fully enumerated in the retrieved materials:

Complete numeric rules for every manufacturing/large‑commercial sign type (pole height limits, cumulative linear sign area for multitenant buildings beyond the billboard DRA rule) — Not found in retrieved materials. Verify with the jurisdiction.

Practical note:

Big commercial projects should include signs on site plans and expect Design Review and discretionary review if the sign exceeds ordinary district limits; site plans must show sign dimensions per § 154.020 — .

Most decision‑relevant standards (quick table)

Topic	Key rule / limit (plain)	Code reference
Prohibited sign types (roof, portable, flashing, imitating traffic signs, billboards generally)	Listed prohibitions; billboards generally prohibited except where DRA allowed	§ 152.04 —
Exempt/temporary signs (construction, real estate, political, garage sale, fuel price)	Construction signs ≤ 32 sq ft; real estate signs ≤ 8 sq ft (onsite) or time‑limited; political signs ≤ 32 sq ft (remove 2 weeks after election)	§ 152.03 —
District sign allowances (residential, office)	Single/multi‑family: 2 sq ft name sign; subdivision/entrance signs up to 32 sq ft; Office: 1:2 area rule, max 30 sq ft (60 on corner) + 12 sq ft extra	§ 152.05 —
Site plan content	Site plans required for discretionary permits — must show signs: location, size, and height among other items	§ 154.020 —
Billboards / large signs	Billboards only in MSC or M with DRA if >75 sq ft or height >18 ft	§ 154.021 —
Non‑conforming signs	Maintained but not altered; if use discontinued 90 days+ sign must be removed	§ 154.278 —
Sign permit application	Building permit required; application must include drawings of location, size, shape, type of illumination, installation	§ 154.274 —

Practical guidance & interpretation

Early in the project show signs on the site plan (location, size, height) because the Planning Department will use § 154.020 to require this for any discretionary review or building permit — .
Small residential name/address signs (≤ 2 sq ft) are explicitly allowed in residential districts and are normally exempt — check § 152.05(B) and § 152.03 — .
For multitenant commercial façades, compute sign area using the 1 sq ft per 2 sq ft of linear frontage rule for the Office district; corner sites get larger caps — § 152.05(C) — .
Want a billboard or a sign larger than ordinary district caps? Expect DRA (discretionary review) and the Planning Department will require full site plans and fees — § 154.021 and § 154.274 — .
Non‑conforming signs are tolerated only so long as they are not enlarged or the occupant doesn’t change for 90 days or more; on change of occupant the sign must conform to current standards — § 154.278 — .

Linkage to other rules (must check these too):

Signs are part of the project’s site plan and therefore interact with the city’s Development Standards and Parking analyses; show signs on the same set of drawings (§ 154.020) — .
Large or design‑sensitive signs will be subject to Design Review and may be affected by Overlay Districts or Historic Preservation rules; verify applicability early.
Structural and electrical installation of signs (anchorage, wiring, illumination) must comply with the California Building Standards Code; the local sign permit process may reference those requirements — Not found in retrieved materials for specific cross‑reference language; verify with the Building Department.

Checklist (what an applicant must satisfy)

Confirm zoning district for the property and check district sign allowances in § 152.05 — .
Determine whether the sign is exempt under § 152.03 (temporary/construction/real estate/political) — .
If not exempt, obtain a building permit; submit sign drawings showing location, size, shape, illumination and installation method as required by § 154.274 — .
Include signs: location, size, and height on the project site plan per § 154.020 — .
If proposing a billboard or oversized sign, file for Discretionary Review (DRA) per § 154.021 and expect additional materials and fees — .
For signs attached to buildings, confirm the sign will not project over public right‑of‑way below clearance minimums (e.g., projecting signs must meet clearance rules) — See § 154.275 and related projecting sign rules — .
Check non‑conforming status; if the site has an existing lawful sign, review § 154.278 for maintenance and removal rules — .
Verify electrical and structural compliance with the California Building Standards Code.

Risks & Ambiguities

Issue	Why it matters	What to verify
Chapter overlap and renumbering (CHAPTER 152 vs CHAPTER 154 excerpts)	The code includes both older Chapter 152 (Signs) and newer Chapter 154 (Zoning/Development Code) language; rules may appear duplicated, moved, or updated.	Verify with Planning Department which chapter and § apply to your property and which edition of the code controls (ask for the current codified text).
Manufacturing/large‑commercial numeric details	General manufacturing guidance appears but full numeric limits for all sign types in M are not completely enumerated in retrieved excerpts.	Confirm manufacturing/MSc district sign standards and any local figures (e.g., allowed pole heights, area per frontage) with the City; verify whether Figure references (e.g., Figure 154.022.05) apply. Not found in retrieved materials.
Figures and illustrations referenced in text	The ordinance references figures (e.g., projecting sign figures) that define measurement points.	Request the full figure set or illustrations from the Planning Department or the official code PDF. Not found in retrieved materials.
Electrical/structural details vs. permit stamping	Structural/electrical sign construction is regulated by building standards; the code refers to building permits but does not reproduce Title 24 installation requirements.	Confirm structural and electrical sign submittal requirements and inspections with Building Division and reference the California Building Standards Code. Not found in retrieved materials for local cross‑reference.
Non‑conforming sign change triggers	The 90‑day discontinuance rule can force removal when occupancy changes.	If you are taking over a site with an existing sign, verify whether the prior sign is non‑conforming and whether a change of occupant triggers removal per § 154.278 — .

Plain‑English summary

San Joaquin regulates signs by type and by zoning district: small residential nameplates are allowed, offices get sign area based on building frontage, and billboards or very large signs are allowed only in limited commercial/industrial districts with discretionary review. Most signs need a building permit and must be shown on site plans; prohibited types (roof signs, flashing, portable, signs that mimic traffic signs) are listed. See the specific ordinance sections cited below and verify district‑specific numeric rules with Planning.

Source References

§ 152.01 — Purpose (Signs chapter) —
§ 152.02 — Permit required —
§ 152.03 — Exemptions (temporary/construction/real estate/political, etc.) —
§ 152.04 — Prohibited signs —
§ 152.05 — Signs allowed by district (Urban Reserve, Residential, Office, etc.) —
§ 154.020 — Site plan review (site plans must show signs: location/size/height) —
§ 154.021 — Discretionary review (billboards limited to MSC or M; DRA thresholds) —
§ 154.274 — Sign application & permit contents —
§ 154.275 — Design criteria (illumination, projection limits, etc.) —
§ 154.278 — Non‑conforming signs (maintenance/removal rules; 90‑day rule) —
Development Standards purpose § 154.290 —
California Building Standards Code (state building/code reference for sign construction): California Building Standards Code

Sources

Retrieved passages

San Joaquin Zoning Code (§ 154.278) High relevance
San Joaquin Zoning Code (§ 154.290) Medium relevance
San Joaquin Zoning Code (§ 154.021) Medium relevance
San Joaquin Zoning Code (§ 15.24.030) Medium relevance
San Joaquin Zoning Code (§ 154.020) Medium relevance
San Joaquin Zoning Code (§ 16.28.010) Medium relevance
CPC § 1280 Medium relevance
San Joaquin Zoning Code (section shall) Medium relevance
San Joaquin Zoning Code (§ 154.273) High relevance
San Joaquin Zoning Code (section which) Medium relevance

Cited sections

Official San Joaquin code library

Frequently asked questions

What signs are outright prohibited in San Joaquin?

The municipal code lists prohibited sign types including signs that imitate official traffic signals, portable signs, roof‑mounted signs, flashing or rotating signs, signs on utility poles, and general billboards (subject to limited exceptions). See § 152.04 for the full prohibited list — .

Do I need a permit for a real‑estate or political sign?

Some temporary signs are exempt from the chapter (construction, certain real‑estate, political campaign signs), but there are size and time limits: for example, the code allows political campaign signs up to 32 sq ft and sets removal timelines; real‑estate signs also have size and duration limits. See § 152.03 for the exemptions and limits — .

How large can an office tenant’s sign be?

In the Office district the ordinance uses a frontage formula: 1 sq ft of sign area per 2 sq ft of linear building frontage, capped at 30 sq ft (or 60 sq ft for corner locations), plus 12 sq ft in addition per office building — see § 152.05(C) — .

Are billboards allowed?

Billboards are generally treated as prohibited elsewhere but may be permitted in the MSC or M district only after Discretionary Review (DRA) if the sign face area exceeds 75 sq ft and/or the height exceeds 18 ft — refer to § 154.021 for the DRA requirement and thresholds — .

What must I include on a site plan when I apply?

When a site plan is required the applicant must show lot dimensions, setbacks, all buildings and structures, walls/fences, off‑street parking, circulation, and signs: location, size, and height, among other items. This is required by § 154.020 — .

I inherited a sign that doesn’t meet current rules — can I keep it?

If the sign was legally erected before the current ordinance and is a non‑conforming sign it may be maintained but not altered to increase its non‑conformity; if the use is discontinued for 90 days or more, the sign must be removed and replacement signs must meet current standards (§ 154.278) — .

Are there illumination rules or brightness limits?

The code requires that externally‑illuminated signs be arranged to avoid glare and light intrusion onto neighboring premises and that light not be directly visible from the public right‑of‑way; design criteria are discussed in § 154.275 — . For electrical/installation standards, verify with the Building Division and the California Building Standards Code.

If my sign projects over a sidewalk what clearance is required?

Projecting signs may not project over a sidewalk at less than 8 ft of clearance; projecting signs over alleys must maintain 15 ft of clearance. See prohibited/projection rules under § 152.04 and the design criteria in § 154.275 — .

Do sign rules affect ADUs or accessory structures?

Sign rules apply citywide but the ordinance does not treat ADU signage separately in the retrieved materials. For ADU specifics, consult the ADU page and verify with Planning; the code does require that sign permits and site plan rules be followed where applicable — Verify with the jurisdiction and see San Joaquin ADUs. Not found in retrieved materials for ADU‑specific sign exemptions — .

Can I appeal a Planning Director decision about a sign?

Yes. Appeals of Director decisions are permitted under the appeals procedures in the Code; see § 154.028 for the appeal rules and timelines (e.g., 15‑day filing rule) — .

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