St. Lucie County, FL Noise Ordinances: Decibel Limits (2026)
Key Facts
- Residential
- 60 dBA day / 55 dBA night
- Commercial
- 65 dBA at all times
- Industrial
- 70 dBA at all times
- Multifamily
- 50 dBA day / 40 dBA night
- Impulsive sound
- +10 dBA, fast setting
Summary
St. Lucie County Sec. 28-110 sets receiving-property dBA limits: residential 60 (day) / 55 (night), commercial 65 at all times, industrial 70 at all times, measured at the property line. Multifamily units are held to 50 dBA day / 40 dBA night from a neighbor's unit.
In a multifamily dwelling, it shall be unlawful to create or permit to be created any noise that exceeds the daytime (7:00 a.m. through 10:00 p.m.) limit of 50 dBA and the nighttime (10:00 p.m. through 7:00 a.m.) limit of 40 dBA, as measured from a neighbor's dwelling.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 32 | Land Development Code: Supplement 36).
Full Breakdown
Sec. 28-110's table sets 'Sound Level Limits by Receiving Property Category': Residential 60 dBA (7 a.m.–10 p.m.) and 55 dBA (10 p.m.–7 a.m.); Commercial 65 dBA at all times; Industrial 70 dBA at all times, all measured at the receiving property line on the slow setting. Impulsive sound uses the fast setting and adds 10 dBA to daytime limits. Multifamily dwellings are capped at 50 dBA (day) / 40 dBA (night) from a neighbor's unit, and mixed-use buildings at 55 / 45 in the residential portion. Low-frequency octave bands (31.5, 63, 125 Hz) may not exceed 65 dB against residential property. Port St. Lucie's Chapter 94 Table I uses L1/L10/L50 tiers (residential 70/65/60 daytime).
Violations & Fines
Exceeding these limits is a noise disturbance penalized under Code § 1-7, measured with an ANSI Type 1 or Type 2 sound level meter per Sec. 28-108. Port St. Lucie applies its Sec. 94.09 fine schedule.
Frequently Asked Questions
What are St. Lucie County's decibel limits?
How is a noise reading taken?
Sources & Official References
Other rules in St. Lucie County
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