How Des Moines Handles Outdoor Lighting: A Practical Guide

Des Moines maintains 170 local ordinances across all categories, and 2 of those deal specifically with outdoor lighting. Here is a breakdown of what the city actually requires, what is prohibited, and where Des Moines falls on the strict-to-permissive spectrum compared to other cities.

Light Trespass

Des Moines prohibits outdoor lighting that causes glare or spills onto adjacent residential properties and public rights-of-way. Chapter 134 Article IV and Chapter 135 site-design standards require shielded, downward-directed fixtures. No standalone foot-candle or curfew ordinance has been adopted.

Key details: Glare prohibition: Yes — Ch. 134 Art. IV. Shielding required: Yes, commercial/parking lots. Nuisance remedy: Ch. 42 Art. V available. Foot-candle limit: None adopted. Light curfew: None adopted.

Light trespass violations are zoning code infractions; Zoning Enforcement Division issues notices of violation; nuisance complaints may also be filed under Chapter 42 Art. V.

Dark Sky Rules

Des Moines regulates outdoor lighting through Chapter 134 (Zoning) general requirements, prohibiting glare that impacts neighboring properties, but has not adopted a formal dark sky or International Dark-Sky Association ordinance with color-temperature or curfew rules.

Key details: Governing code: Chapter 134 Art. IV; Ch. 135. Glare prohibition: Yes — neighbor and ROW directed. Shielding required: Yes, for parking & commercial. Dark sky ordinance: None adopted. CCT / lumen limits: None.

Lighting violations are treated as zoning code infractions; enforcement by Zoning Enforcement Division; civil penalties apply after notice and opportunity to cure.

If you are coming from a city with tighter rules, you will find Des Moines gives residents more flexibility on dark sky rules.

The Bottom Line

Des Moines's outdoor lighting rules are a mixed bag. Some areas are strict, others are relaxed, and the details matter. The best approach is to check the specific rule that applies to your situation rather than assuming Des Moines is broadly strict or permissive.

Keep in mind that Des Moines can amend these rules at any council meeting. For the most current version of any rule mentioned here, check the specific ordinance page, where we track updates as they happen.