Franklin, TN Outdoor Lighting: Dark Sky Rules (2026)
Key Facts
- Light source visibility
- must not be visible from residential lots
- Prismatic/acrylic-only shielding
- prohibited
- Upward accent lighting
- low-wattage architectural only
- Photometric plan
- required with site plans
Summary
Franklin's 2026 Zoning Ordinance requires exterior lighting to be shielded and aimed downward, bans fixtures relying only on prismatic or acrylic globes, and requires a photometric plan for site lighting.
A. Exterior lighting shall: 1. Be arranged to minimize glare and reflection upon adjacent properties; 2. Be aimed or directed to preclude light projection beyond immediate objects intended to be illuminated; 3. Not distribute light onto surrounding property beyond an angle of 35 degrees from a vertical plane; and 4. Use low-wattage architectural lighting for upwardly-directed lighting intended to illuminate structures or landscape elements. 5. Be positioned, aimed, or configured so the light source is not visible from a residential lot.
B. Ornamental style light fixtures that rely on prismatic glass, acrylic, or polycarbonate outer globes as their only lamp shielding method are prohibited.
Full Breakdown
Exterior lighting must be arranged to minimize glare and reflection on adjacent properties, aimed to keep light on the object it's meant to illuminate, and positioned so the light source itself isn't visible from a residential lot. Upward-facing accent lighting on buildings or landscaping has to use low-wattage architectural fixtures. Ornamental fixtures that rely on prismatic glass, acrylic, or polycarbonate outer globes as their only shielding method are prohibited outright. Site plan applications must include a photometric plan showing fixture layout and foot-candle measurements, reviewed by the Department of Building and Neighborhood Services.
Violations & Fines
Installing unshielded or improperly aimed lighting violates the Ordinance; the City can require fixture changes, and violations are misdemeanors fined under Title 12, with each day counted as a separate offense.
Frequently Asked Questions
Does Franklin require shielded outdoor light fixtures?
Can floodlights face upward or toward the sky?
Sources & Official References
Other rules in Franklin
Compare Franklin to another location·View the Tennessee outdoor lighting overview
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