Manhattan properties must direct runoff to the combined sewer via approved house/sewer connections; DEP site connection approval is required before DOB sign-off.
Grading and drainage in New York County (Manhattan) is governed by NYC DEP under NYC Administrative Code Title 24 and by DOB under the NYC Building Code. Because Manhattan is predominantly served by a combined sewer system, stormwater and sanitary flows share pipes — meaning downspouts, areaway drains, and site grading must be routed to approved house/sewer connections, not to neighboring lots or the public sidewalk. Site Connection Proposals must be reviewed and approved by DEP (House/Site Connection Permit) before DOB will sign off on new construction or alterations. Green infrastructure (bioswales, blue roofs, detention tanks) may be required on large sites under DEP Stormwater Construction Permit rules. Standing water, ponding on sidewalks, or cross-lot drainage can draw DEP and DOB violations and neighbor complaints via 311.
Contact your local code enforcement office for specific penalty information.
New York County, NY
Manhattan enforces NYC Admin Code 24-235, which prohibits a dog from barking more than 10 minutes continuously during the day or 5 minutes at night in any re...
New York County, NY
Manhattan enforces NYC Administrative Code Title 24 Chapter 2, limiting interior residential noise to 45 dBA between 10 PM and 7 AM, with NYPD and DEP respon...
New York County, NY
Outdoor music events in Manhattan require an NYPD Sound Device Permit and a Mayor Office Street Activity Permit, and must comply with NYC Admin Code 24-244 t...
New York County, NY
NYC Admin Code Title 24 Chapter 2 sets tiered dBA limits in Manhattan: 45 dBA interior night residential, 50 dBA day, 7 to 10 dBA above ambient commercial, w...
New York County, NY
Private outdoor pools are rare in Manhattan, but any residential pool over 24 inches deep must have a 4-foot barrier with self-closing, self-latching gates u...
New York County, NY
Barbed and razor wire are prohibited on residential property in NYC. In landmarked or historic districts of Manhattan, the LPC controls fence materials and t...
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