Bronx County Construction Hours Rules (2026) — What You Need to Know

Section 24-222 of the NYC Administrative Code establishes that construction work is unlawful outside of weekday hours between 7 AM and 6 PM. This applies to all construction activity in the Bronx and throughout New York City. The rule is strictly enforced, particularly in residential neighborhoods like Pelham Bay, Morris Park, and Throggs Neck where construction noise is a persistent quality-of-life concern.

The sole built-in exception is for alterations or repairs to owner-occupied one- or two-family dwellings (occupancy group J-3): such work may be performed on Saturdays and Sundays between 10 AM and 4 PM, provided the home is located more than 300 feet from a house of worship. This exception is quite narrow and does not apply to new construction, multi-family buildings, or commercial projects.

For any other after-hours or weekend work, contractors must obtain an After Hours Work Authorization under § 24-223 from the agency that issued the construction permit (typically the Department of Buildings). The authorization requires a certified noise mitigation plan filed with DEP. After-hours work must not produce aggregate sound levels exceeding 7 dB(A) above ambient as measured at a residential receiving property within 200 feet, or 75 dB(A) measured 50 feet or more from the source outside the property line, or 85 dB(A) for street-level construction. Emergency work is exempt but requires a mitigation plan within three days of commencement.