Sioux City, IA Outdoor Lighting: Dark Sky Rules (2026)
Key Facts
- Fixture type
- Full cut-off fixtures required
- Height cap
- No taller than building eave
- Light trespass
- No spill onto residential lot lines
- Applies in
- Downtown Commercial (DC) district only
- Citywide subchapter
- 25.05-D Exterior Lighting is Reserved
Summary
Sioux City requires full cut-off, downward-directed light fixtures in the Downtown Commercial district, capping pole height at the building eave and barring light from spilling onto residential lot lines.
8. Lighting. The site lighting shall not exceed the eve height of the building to which it principally relates, have full-cut off fixtures, and the light shall not spill over lot lines of residential uses or districts. The preferred lighting fixture types are post fixtures.
9. Restrictions. All allowed uses must be operated entirely indoors, with the exception of an outdoor restaurant or cafe seating area. However, the outdoor seating area may not face directly upon or be within 50 feet of a residential use or district.
(Ord. 2015-0215)
Subsection 25.03.190.6 Casino Entertainment (CE) Design Standards
1. Facade Treatments.
a. Elevations. Elevations of building walls that are within direct public view shall have certain percentages of decorative facade surfaces as follows:
1. Front Elevation. The building elevation(s) fronting on or most directly facing street right-of-way or a private access easement shall be constructed of or faced with a decorative building material on 75 percent of the facade elevation, with the remaining 25 percent constructed of a standard building material, excluding doors.
https://online.encodeplus.com/regs/siouxcity-ia/doc-viewer.aspx#secid-963 807/1110 8/12/26, 3:47 PM Document Viewer | Municipal Code
2. Side Elevation. Decorative building materials are required on side elevations as follows:
Full Breakdown
Sioux City Municipal Code § 25.03.190.3, Item 8 (Downtown Commercial (DC) Design Standards) requires site lighting to use full cut-off fixtures, shielded so no light escapes above the fixture, with pole height capped at the building's eave height, and bars light from spilling over onto lot lines of residential uses or districts; post-style fixtures are preferred. This is the code's one concrete outdoor-lighting shielding standard: the citywide 'Exterior Lighting' subchapter (25.05-D) is expressly marked 'Reserved,' so outside the DC district, lighting is governed only by narrower glare-prevention clauses tied to specific uses like pools, tennis courts, and gas stations.
Violations & Fines
Noncompliant site lighting in the DC district is a zoning violation under § 25.06.160.3: a municipal infraction with a $100–$750 fine for a first offense and up to $1,000 for repeat violations, each day treated separately.
Frequently Asked Questions
Does Sioux City have a citywide dark-sky ordinance?
What lighting fixtures does Downtown Commercial development need?
Sources & Official References
Other rules in Sioux City
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