Memphis, TN Outdoor Lighting: Dark Sky Rules (2026)
Key Facts
- Uplight cap
- 0% light emission above 90 degrees, all zones
- Exempt
- single- and two-family residential lighting
- Governing rule
- UDC § 4.7.3.A.1.c, BUG Tables C-1 to C-3
- Enforced by
- Zoning Administrator via lighting plan review
- Nonconforming reset
- 30-month abandonment triggers full compliance
- Applies to
- Memphis and unincorporated Shelby County jointly
Summary
Commercial, multi-family and mixed-use sites across Memphis and unincorporated Shelby County must curtail light pollution and skyglow under the joint Unified Development Code's outdoor lighting chapter. Parking lot luminaires can emit zero light above 90 degrees, and every fixture carries an Uplight rating capped by its Lighting Zone. Single-family and two-family home lighting is not covered.
c. Curtail light pollution, reduce skyglow and improve the nighttime environment ... b. Limits to Off Site Impacts All luminaires shall be rated and installed according to Maximum Allowable Backlight, Uplight and Glare (BUG) Ratings (Tables C).
c. Light Shielding for Parking Lot Illumination All parking lot lighting shall have no light emitted above 90 degrees. Exception: Ornamental parking lighting shall be permitted by special use permit only, and shall meet the requirements of Table C-1 for Backlight, Table C-2 for Uplight, and Table C-3 for Glare, without the need for external field-added modifications.
Official source re-checked September 8, 2026: the cited page had not changed since it was quoted.
Full Breakdown
' The chapter exempts lighting on single-family or two-family residential sites, subdivisions and planned developments under seven principal dwelling units, street and right-of-way lighting, sign lighting, public monument lighting, and seasonal lamps under 10 watts and 70 lumens. For covered sites, a lighting plan and fixture cut sheets go to the Zoning Administrator using either the Prescriptive or Performance Method. Under the Prescriptive Method, total installed lumens are capped by the Parking Space Method or Hardscape Area Method, and every luminaire must carry a Backlight, Uplight and Glare (BUG) rating no higher than its Lighting Zone allows.
Table C-2 sets the Uplight cap at zero percent light emission above 90 degrees for street or area lighting in every Lighting Zone, and parking lot fixtures specifically 'shall have no light emitted above 90 degrees' unless ornamental lighting is approved by special use permit and still meets the Table C-1 through C-3 ratings without field modification. High-intensity uses such as searchlights, aerial lasers, sports-field lighting and correctional facilities can only deviate from these caps through an administrative deviation special use permit, which requires a signed mitigation statement and a project-specific lighting curfew.
If a site with nonconforming lighting sits abandoned 30 months or more, every fixture must be brought into full compliance before the property can be used again.
Violations & Fines
The Zoning Administrator reviews the required lighting plan and photometric calculations at permit application; fixtures that exceed the Table C Backlight, Uplight or Glare ratings or the site lumen cap are grounds to withhold permit or certificate of occupancy approval. Owners of nonconforming lighting that sits unused for 30 months or more must bring every fixture into full Chapter 4.7 compliance before resuming use. Deviations require a special use permit with a signed mitigation statement and curfew condition.
Frequently Asked Questions
Does Memphis's dark-sky lighting rule apply to my house?
How dark must parking lot lighting be under the UDC?
What happens to old, noncompliant lighting on a site?
Sources & Official References
Other rules in Memphis
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