Weekly digestNew YorkWeek of May 11, 2026

New York building permits — week of May 11, 2026

JPMorgan Chase is quietly taking over 375 Madison Avenue — three separate permits totaling over $100M in declared value cover floors 12 through 44, signaling a full-building overhaul of the midtown tower. Battery Park City Authority is right behind them with a combined $103M in permits at 401 South End Avenue, suggesting a major reimagining of that Hudson River open space. With $550M in total declared value across nearly 1,900 permits, this is a week dominated by institutional money reshaping Manhattan's office and civic infrastructure.

1917

PERMITS FILED

$550.0M

DECLARED VALUE

+1%

VS PRIOR WEEK

1602

ALTERATION

Top permits this week

401 SOUTH END AVENUE MANHATTAN

$84,721,460

Alteration

Battery Park City Authority's $84M permit for open space work at 401 South End Avenue is one of the largest public-realm investments filed in the city this year.

ZIP 10280

375 MADISON AVENUE MANHATTAN

$68,742,656

Alteration

JPMorgan Chase's $68M permit covers floors 12 through 43 at 375 Madison — the core of what looks like a top-to-bottom reconfiguration of its midtown headquarters tower.

ZIP 10017

375 MADISON AVENUE MANHATTAN

$22,557,090

Alteration

A companion $22M permit at the same JPMorgan address targets overlapping floors, suggesting phased or parallel work by separate trades on a complex interior overhaul.

ZIP 10017