From Cubicles to Bedrooms: NYC’s Office-to-Apartment Boom Hits Record Highs

For years, New York’s glut of empty offices was a problem in search of a solution. In 2026, the solution has a name: conversion. Across Manhattan, developers are gutting obsolete office towers and rebuilding them as apartments — and the pace is now setting records.

A pipeline that doubled

According to a Bisnow analysis, developers expect to begin roughly 9.5 million square feet of office-to-residential conversions in 2026 — more than double the 4.3 million square feet that broke ground over the first eleven months of 2025, which was itself up about 60% from 2024.

That 2025 surge already eclipsed the previous high-water mark of 4.8 million square feet set back in 2008, Bisnow reported — a sign this is a structural shift in how Manhattan reuses its building stock, not a one-year blip. The real estate listings site CityRealty has counted some 30 conversion projects in the pipeline that together could add more than 10,000 apartments to the city.

The flagship projects

The poster child sits in the middle of Times Square. At 5 Times Square, a partnership of RXR, SL Green and Apollo Global Management is converting roughly 918,000 square feet of vacant office space into 1,250 apartments — 1,050 studios and 200 one-bedrooms — designed by Gensler, per The Real Deal. Notably, 313 of those units are slated to be permanently affordable at up to 80% of area median income, and the project landed a $575 million financing package, including a $561 million loan from Corebridge — proof that lenders now see conversions as bankable at scale.

Downtown, the future has already arrived. 25 Water Street in the Financial District — a 1.1-million-square-foot former office tower reborn as 1,320 apartments with roughly 100,000 square feet of amenities — is, according to 6sqft, the largest office-to-residential conversion in U.S. history. Its first residents have already moved in, and it was the first NYC project to tap the state’s new 467-m tax exemption. Bisnow notes that an even bigger project is on the boards: the former Pfizer headquarters on East 42nd Street, with more than 1,600 units planned.

Why it’s happening now

Three policy levers lined up at once, Bisnow notes:

• The 467-m tax incentive, created in the 2024 state budget, which rewards conversions that include affordable units;
• The City of Yes zoning reforms, which expanded the buildings eligible for conversion from those built before 1961 to those built before 1990 — pulling thousands of additional towers into play;
• The city’s Office Conversion Accelerator, a program launched in 2023 to shepherd projects through the approvals maze.

Together, they turned a good idea that rarely penciled out into a wave of actual construction.

What it means for renters

Here is the part that matters if you are signing a lease. All of this new supply is landing into one of the tightest rental markets on record. Brick Underground reported that Manhattan’s median rent hit a record $5,000 a month in March 2026 — the second straight month at that level — amid the 19th consecutive month of shrinking inventory. Brooklyn’s median reached $4,150, up about 4% year over year.

Thousands of new apartments will not undo a squeeze that severe overnight, and most conversion units skew toward the higher end of the market. But supply is the one thing the city has struggled to add fast enough — and a structural pipeline of new homes, including a meaningful slice of permanently affordable ones, is a better problem to have than acres of empty cubicles.

The transformation is still mid-stream: many of these towers will not welcome residents until 2027 and beyond. But the direction is unmistakable. The Manhattan of the next decade will have fewer floors of desks — and a lot more front doors.