Somerville uses both plainly-audible standards and numeric decibel caps for specific sources, typically 65 to 75 dBA during day and 55 to 65 dBA at night measured at residential property lines.
Somerville's Noise Control Ordinance uses a two-track approach: a plainly-audible standard for everyday complaints and numeric decibel caps for measured enforcement and permit conditions. Typical limits at a residential property line are approximately 65 dBA daytime (7:00 AM to 11:00 PM) and 55 dBA nighttime (11:00 PM to 7:00 AM); limits are higher at commercial and industrial property lines, generally 70 to 75 dBA daytime and 65 dBA nighttime. Leaf blowers are capped at 65 dBA at 50 feet under the city's 2024 ordinance. Construction, HVAC, refrigeration units, and fixed mechanical equipment are commonly measured with a sound-level meter when complaints recur. Inspectional Services and the Police Department handle field measurements. Fines begin at 100 dollars and escalate to 300 dollars for commercial equipment violations, with abatement orders possible for chronic sources.
Contact your local code enforcement office for specific penalty information.
Somerville, MA
Overnight street parking in Somerville requires a resident permit citywide. Snow emergencies trigger odd-even or posted-side bans.
Somerville, MA
Commercial vehicles over 2.5 tons cannot park overnight on Somerville residential streets. Loading zones are time-limited and signed by block.
Somerville, MA
Most Somerville streets are resident-permit zones. Non-residents are limited to 2 hours on posted blocks from 8 AM to 8 PM daily including weekends.
Somerville, MA
Somerville requires a building permit for most fence installations, with historic districts adding a Historic Preservation Commission review step for visible...
Somerville, MA
Traditional livestock such as cattle, horses, goats, sheep, and pigs are not permitted on residential lots in Somerville, which has no agricultural zoning di...
Somerville, MA
Exotic pets are governed primarily by Massachusetts state law, which bans most wild and dangerous species; Somerville enforces the state list through Animal ...
Side-by-side rule comparisons with other cities in Middlesex County.
See how other cities in Middlesex County handle decibel limits.
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