New York, NY Landscaping Rules: Grass Height Limits (2026)

Unlike many suburban towns, New York City does not accept complaints about overgrown grass or weeds on private property, including vacant lots, unless the growth is overflowing onto a public sidewalk and obstructing pedestrians. When overgrowth blocks a sidewalk, the Department of Sanitation will inspect and can issue the property owner a violation or correct the condition; tall or unsightly grass on a highway shoulder or median is referred to the Department of Transportation. The substantive height limit that applies in the five boroughs comes from the New York State Property Maintenance Code (2020), Section 302.4 (Weeds), which is a state-adopted code with force of law citywide: all developed areas of a premises intended to be used by building occupants or the public must be maintained free from weeds in excess of 10 inches, and noxious weeds are prohibited. The code's definition of weeds (Section 202) expressly includes grasses and annual vegetation but excludes trees, shrubs, cultivated flowers, and gardens, so an unmowed lawn over 10 inches is treated the same as overgrown weeds. Because NYC's own enforcement focus is the public right-of-way, this state standard is the practical backstop for private overgrowth that affects health, safety, or the sidewalk.