How Simpsonville Handles Outdoor Lighting: A Practical Guide

Simpsonville maintains 100 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 Simpsonville falls on the strict-to-permissive spectrum compared to other cities.

Dark Sky Rules

Simpsonville's Zoning Ordinance includes dark-sky-style lighting standards (Section 4.8) intended to minimize light pollution and sky glow. Fixtures must be shielded or recessed, lights over 100 watts must be full cut-off, and color temperature may not exceed 3000K. Single-family homes and holiday displays are exempt.

Key details: Governing rule: Zoning Ord. Section 4.8. Full cut-off required: Fixtures over 100 watts. Max color temperature: 3000K at the source. Single-family homes: Exempt (Sec. 4.8.2). Holiday lighting: Exempt.

Non-compliant lighting on regulated (non-residential) development is a zoning violation; the City may withhold permits or certificates of occupancy until the photometric plan complies. Penalties follow Code section 1-9.

Light Trespass

Reducing light trespass onto neighbors is an express goal of Simpsonville's lighting standards. Fixtures must be positioned so the light source or cone of light is not directed at or beyond any property line, and for commercial uses abutting single-family homes, light at the shared property line may not exceed

Key details: Light-trespass goal: Stated in Sec. 4.8.1.D. Aiming rule: Not past any property line. Commercial-by-residential cap: 0.5 foot-candles at line. After-hours dimming: To 25% or less. Single-family homes: Exempt from Section 4.8.

Light spilling past property lines on regulated non-residential sites is a zoning violation; the City may require corrective shielding and withhold approvals. Penalties follow Code section 1-9.

The Bottom Line

Simpsonville'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 Simpsonville is broadly strict or permissive.

All of the above reflects Simpsonville's municipal code as of our last review. If you need specifics on fines, exemptions, or filing requirements, the detailed ordinance pages linked above have the full breakdown.