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Union City, CA Outdoor Lighting: Light Trespass & Shielding (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Fixture height cap
16 feet in pedestrian areas/courtyards
Shielding required
Adjacent residential windows and private areas
Exempt uses
Detached homes, SB 9, ADUs
Governing chapter
Ch. 18.24 General Development Regulations

Summary

Union City requires site lighting on qualifying new development to be shielded from adjacent residential windows and private outdoor areas, keeping glare off neighboring homes and yards.

Maximum Height of Freestanding Lighting Standards. The maximum height of a freestanding lighting standard in pedestrian areas and courtyards is 16 feet. Lighting shall be shielded from adjacent residential windows and private outdoor areas.

c. Attached Fixtures. Fixtures on buildings shall be attached only to walls or eaves, and the top of the fixture shall not exceed the height of the parapet or roof or eave of roof.

Figure 18.24.050(D)(4): Lighting Fixture Design 5. Utilities. All new transformers, switching boxes, and similar appurtenances and utility equipment shall be located below-grade, in closets or interior of buildings, or in locations not visible from public right-of-way, unless prohibited by the utility provider. When screened within an enclosure, the enclosure shall have walls matching the material and color of the nearest building, be located no closer to the street than a building, and be surrounded by landscaping such as trees, shrubs, and climbing vines, that screen the enclosure, unless prohibited by the utility provider.

a. Reductions and Exceptions. A reduction or exception to the applicable objective utility standard may be granted by the decision maker if a finding can be made that the proposed design reduces the visual impact of utilities to the greatest extent feasible.

6. Vehicle Parking.

a. Access.

i. Access to parking facilities shall be from an alley or secondary street, wherever such alley or secondary access is feasible.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4940544; v16 updated 2026-06-23).

Full Breakdown

Under the citywide site design standards, freestanding lighting fixtures in pedestrian areas and courtyards may not exceed 16 feet, and all lighting must be shielded from adjacent residential windows and private outdoor areas. The rule applies to most new development citywide but exempts detached single-family homes, SB 9 housing, accessory dwelling units, and the Industrial, Mixed-Use Employment, Civic Facility, Private Institutional, Agricultural, and Open Space districts. Compliance is checked during site development review.

Violations & Fines

Noncompliant lighting plans are denied or conditioned at site development review; built violations are enforceable as a misdemeanor or infraction under Union City Municipal Code § 1.16.010, fines up to $1,000.

Frequently Asked Questions

Does this lighting rule apply to my single-family home?
No. Section 18.24.050(A) exempts detached single-family dwellings, SB 9 housing developments, and accessory dwelling units from these site design standards, including the lighting shielding requirement.
How tall can a freestanding light pole be?
In pedestrian areas and courtyards, freestanding lighting standards are capped at 16 feet under Union City Municipal Code § 18.24.050(D)(4)(b).

Sources & Official References

Other rules in Union City

All Union City rules

California rules heatmap·Compare Union City to another location·View the California outdoor lighting overview

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