Mayor Mamdani Announces Crackdown on Long-Standing Sidewalk Sheds and Construction Scaffolding With Faster Removal Rules and New Designs

Yisroel R.

Mayor Zohran Mamdani is moving to tackle one of New York City’s most persistent streetscape frustrations, announcing a new crackdown aimed at getting long-standing sidewalk sheds and construction scaffolding-style protective structures removed faster while pushing forward less intrusive designs for those that still need to remain.

Under newly finalized Department of Buildings rules, property owners will have to show clear progress on the repair work that originally required a sidewalk scaffolding to be installed. These covered structures are commonly placed over sidewalks during façade repairs or construction to protect pedestrians below. Rather than receiving automatic yearly renewals, owners will now need to renew permits every 90 days and provide updated reports detailing what work has been completed and what remains.

The new system is intended to prevent sheds from simply lingering for years with little visible activity. If a property owner fails to make meaningful progress, the city can begin issuing monthly fines and penalties after 180 days, with fines increasing based on the size of the shed and how long it remains in place.

The Mamdani administration says the effort is already moving in the right direction. As of August 17, there were 7,427 permitted sidewalk sheds across the five boroughs, more than 1,000 fewer than at the same point last year and nearly 10% fewer than when Mamdani took office in January.

For the sidewalk sheds that do remain necessary, the city is also pushing to make them less dark, cramped and disruptive. DOB has proposed six new designs aimed at allowing more light onto sidewalks while improving visibility and giving pedestrians more room to move.

The city is also changing how much shed coverage is required at large properties, including complexes, hospitals, universities and other multi-building sites. New guidance will generally limit the required coverage to no more than 40 feet from a building, reducing the massive stretches of sidewalk that can sometimes remain covered even where additional protection may not be necessary.

City officials say the goal is not to get rid of sidewalk sheds altogether, since they remain an important safety tool during façade work and construction. Instead, the new rules are designed to strike a better balance between pedestrian protection and the quality-of-life problems caused by sheds that block light, narrow sidewalks and remain in place long after residents expect them to come down.

The crackdown marks a broader effort by the Mamdani administration to change the way sidewalk sheds are managed across New York City, with shorter permit cycles, tougher enforcement and new designs. The city is aiming to keep sidewalks safe without allowing temporary structures to become permanent dark fixtures.