Former Pfizer Tower "Remains Unstable" as NYC Evacuates Midtown Blocks

Bricks started falling into the street at 8am. By afternoon, a six-block stretch of one of the busiest corridors in Manhattan had been sealed off entirely.

Construction workers on the 21st floor of 235 East 42nd Street noticed structural support columns beginning to buckle Tuesday morning, triggering evacuations across Midtown Manhattan and prompting officials to warn the 37-story tower "remains unstable."

How the Morning Unfolded

The FDNY received its first call around 8am about bricks falling from the building, located between Second and Third avenues, a block from the Chrysler Building and between Grand Central Terminal and the United Nations headquarters.

NYPD got a separate 911 call about 15 minutes later, and officers arriving on scene were told construction workers on the 21st floor had seen columns beginning to collapse.

The workers self-evacuated, and police say every construction worker was safely accounted for with no reported injuries.

What Actually Failed

A structural column buckled on the 21st floor, and additional structural issues were subsequently discovered, causing the 21st through 26th floors to begin caving under the stress, officials from FDNY and the Department of Buildings said.

FDNY Chief John Esposito said the steel beams had begun to "bend and deflect," but that if the building were to give way, it would "not be a total collapse" but "more of a localized collapse."

The building topped out at 37 floors, and as more infrastructure was added to the floors above the 21st, the load-bearing columns became increasingly stressed, officials said — meaning the failure point was likely a cumulative design or construction issue rather than a sudden single event.

📰 Read Also: Bedford Train Crash Kills Driver Near Elstow

The Scale of the Evacuation

Mayor Zohran Mamdani established a "frozen zone" spanning First to Third avenues between 40th and 45th streets, closed to both pedestrian and vehicular traffic.

Evacuated buildings included the Hampton Inn Manhattan Grand Central at 231 East 43rd Street, where guests were evacuated from their rooms, and the Kennedy International School at 225 East 43rd Street, a lower school serving roughly 400 elementary-aged students.

"I want to be honest with New Yorkers that this is a fast-developing situation. We are taking it minute by minute," Mamdani told reporters, thanking residents and workers in the frozen zone for cooperating.

Gov. Kathy Hochul said she was in direct contact with city officials, with state building inspectors also dispatched to the scene.

📰 Read Also: Buckled Rail Halts Trains Between Nuneaton, Leamington

Why Officials Couldn't Just Send People In

Structural engineers monitored the building's movement from outside using drones and highly sensitive equipment capable of measuring the smallest shifts in the columns, allowing officials to avoid sending personnel inside while the structure remained actively moving.

Department of Buildings Commissioner Ahmed Tigani said the continued movement meant "it is not yet stable, it is still a very serious and dangerous situation."

By around 12pm, the building had stopped moving, according to two sources briefed on the situation, allowing a six-person team of DOB and FDNY inspectors to enter around 3pm to determine whether shoring efforts could safely begin.

📰 Read Also: Pentagon Locked Down — Hazmat Teams Respond to Alert

The Building's Bigger Context

The tower is part of what officials describe as the city's largest office-to-residential conversion project, with plans for roughly 1,500 to 1,600 rental units once complete.

The building has an active construction permit, and the architecture firm Gensler, listed with inspectors on site, did not immediately return requests for comment.

Both NYPD and the Department of Buildings describe their investigations into the cause of the structural failure as ongoing.

TL;DR

• Structural columns began buckling on the 21st floor of a former Pfizer building at 235 East 42nd Street.

• The building's 21st through 26th floors started caving, prompting evacuations of a school, hotel and surrounding blocks.

• No injuries were reported; all construction workers were safely accounted for.

• Officials said the building "remains unstable," monitoring it via drones before it stopped moving around noon.

• The tower is part of NYC's largest office-to-residential conversion project, with roughly 1,500-1,600 planned units.

Read More

• Three-Alarm Warehouse Fire Breaks Out in Jamaica, Queens

• Fire Rips Through Barry House, Forces Road Closure

• London Fire: 100 Firefighters Battle Bermondsey Blaze — Smoke Across City