AI Firms Fill Manhattan
New York’s office recovery is being driven in large part by AI companies leasing big blocks of space, which is squeezing prime districts and making the market denser for founders and engineers. AI tenants took roughly 8.5 million square feet of Manhattan office space in 2025, about 16% of all leasing, concentrating around Midtown South and Park Avenue South. That physical clustering matters because startups taking real office space tend to be hiring, fundraising or courting enterprise buyers — so proximity is increasingly useful for networking and customer discovery. (allwork.space)
Manhattan’s office comeback is being pulled forward by one kind of tenant: artificial intelligence companies that are taking real floors, not just coworking desks. In 2025, Manhattan office leasing hit 32.29 million square feet, up 37% from 2024, according to CBRE. (cbre.com) A noticeable share of that demand came from artificial intelligence tenants. One April 2026 market report said those firms leased about 8.5 million square feet in Manhattan in 2025, or roughly 16% of all leasing. (allwork.space) That is a sharp turn from the years right after the pandemic, when technology companies were better known for dumping space onto the sublease market than signing new leases. By early 2025, CBRE said tech tenants had their strongest start to a year in Manhattan since 2000, with 1.2 million square feet leased in the first quarter alone. (therealdeal.com) The new demand is not spread evenly across the island. The biggest concentration is around Midtown South and Park Avenue South, where landlords are closest to startup investors, law firms, recruiters, and the big corporate buyers that sell software to banks, media groups, and retailers. (allwork.space) You can see the pattern in the addresses. OpenAI leased 90,000 square feet at the Puck Building in SoHo, Sigma Computing took 64,000 square feet at One Madison Avenue, and Harvey AI signed 93,000 square feet at One Madison Avenue after previously occupying space at 315 Park Avenue South. (commercialobserver.com) (allwork.space) (therealdeal.com) The deals are not only giant headline leases. Commercial Observer reported that Hex Technologies signed 12,000 square feet at 250 Park Avenue South in January 2026 at an asking rent of $80 per square foot, and Synthesia expanded to 13,600 square feet at 245 Fifth Avenue in August 2025. (commercialobserver.com 1) (commercialobserver.com 2) That mix of large and small leases changes what the neighborhood feels like. Allwork, citing Okada & Co., said many artificial intelligence startups are still taking 5,000 square feet or less in older Class B buildings, while a smaller set of better-funded firms are taking full floors in trophy properties. (allwork.space) Landlords are responding by pushing prime rents higher where that demand is hottest. Cushman & Wakefield said Midtown South asking rents reached $81.31 per square foot in mid-2025, while Manhattan Class A office rents averaged $81.67 per square foot. (cushmanwakefield.com) The reason these firms want to sit near each other is practical, not symbolic. A startup that signs a real office is often hiring engineers, meeting venture capital investors, and pitching large companies, so being a short walk from Madison Square, Flatiron, Union Square, or SoHo saves time the way being near a train hub saves connections. (allwork.space) That clustering also makes Manhattan denser for talent. Bisnow reported on April 8, 2026 that average artificial intelligence lease size in New York had more than doubled to 34,500 square feet and that 55% of recent leasing was for future growth space, which usually means companies expect to add people before the lease runs out. (bisnow.com) So the office recovery is no longer just a story about workers returning to old desks. It is increasingly a story about a new industry choosing a few Manhattan blocks as its trading floor, and once that happens, the coffee shops, recruiters, landlords, and rival startups tend to pile in right behind it. (cbre.com) (allwork.space)
