Midtown's Conversion Boom Is Adding Thousands of Apartments. Almost None Are Condos.

Walk down Seventh Avenue past the old Ernst & Young tower this fall and you will see the scaffolding and netting of a building being stripped to its steel, a visible piece of the largest wave of office-to-residential conversion Midtown has ever seen. The building is being rebuilt into 1,250 apartments. Two blocks from Grand Central, the former Pfizer headquarters is being gutted floor by floor into roughly 1,600 more. Developers across Midtown East and Midtown South are on track to start 9.5 million square feet of new conversions in 2026 alone, more than double last year's pace and nearly twice the city's previous peak in 2008, according to reporting from Bisnow.

If you are comparing Midtown to the Upper West Side or Chelsea and factoring in "a wave of new supply is coming, so prices should soften," you are pricing in something that mostly does not apply to you. Nearly all of that pipeline is rentals. And the condo share of it is shrinking every year, not growing.

The Buildings Everyone Is Talking About

The headline projects are real and worth naming, because they explain why Midtown feels like it is in the middle of a construction boom right now.

• 5 Times Square, soon to be readdressed as 592 Seventh Avenue, is becoming 1,250 units under RXR, Apollo Global Management and SL Green. Most of it is studios. A quarter of the units will rent below market rate.
• The former Pfizer headquarters at 235 and 219 East 42nd Street is becoming roughly 1,600 apartments under Metro Loft and David Werner Real Estate Investments, the largest office-to-residential conversion in U.S. history.
• Tower 57 at 135 East 57th Street was picked up by TF Cornerstone for a $159 million ground lease after its previous owner stopped paying rent and lost the lease.
• 355 Lexington Avenue, at the corner of Lexington and East 40th, is being converted by longtime owner Rudin Management into 297 market-rate and affordable apartments.
• 675 Third Avenue, between East 42nd and 43rd, is becoming 464 rental units under Metro Loft and David Werner, on track for occupancy in the second quarter of 2027, according to New York YIMBY's building-by-building tracking of the pipeline.

Every one of these is a rental project. That pattern is the whole story.

What the Pipeline Actually Delivers

A marketing analysis from Corcoran Sunshine, cited in that same Bisnow reporting, breaks out how the conversion pipeline splits between rentals and condos over the next three years:

The rental column grows every year. The condo column shrinks in raw terms after 2027, and shrinks even faster as a share of the total. A pipeline that already leaned rental in 2026 is on pace to be almost entirely rental by 2028. If your search criteria are "for sale," the conversion boom is not really building anything for you. It is building competition for tenants, which affects rental comps and landlord pricing power in the neighborhood, but it does very little to loosen the resale condo market you are actually shopping in.

Where the Condos Actually Are

The handful of conversions that are producing condos tend to be smaller, older, and easier to reposition than the trophy rental towers making headlines.

Parc Beaufort, at 140 West 57th Street, converted a 1908 building originally constructed as housing for artists into 47 luxury condos under the Feil Organization, with interiors by Stephen Sills Associates. Units start at $955,000, according to 6sqft's coverage of recent Midtown conversion activity.

The DuArt Building at 245 West 55th Street, once a motion picture processing lab, is being converted by Mandelbaum & Mandelbaum into 42 condo units, adding six new stories to bring the building to 18 stories total. The developer bought the property for $28.5 million in 2023.

Just south in NoMad, 95 Madison Avenue is being converted from a bankrupt 16-story office building into 65 homes by Sunlight Development and NuVerse Advisors, one of the examples cited by Crain's as evidence that condo conversions, while rarer than rentals, are starting to spread beyond the Water Street corridor downtown.

These three projects together add well under 200 condo units. Compare that to the roughly 3,000 rental units across the five largest conversions above. If you want to buy into this trend rather than just watch it happen around you, the short list of buildings is genuinely short, and worth tracking building by building rather than assuming the next Midtown listing you see is part of some larger wave.

Why the Monthly Headlines Contradict Each Other

There is a second reason "Midtown is up" or "Midtown is down" headlines are unreliable on their own. Midtown's monthly contract numbers have been unusually volatile. Contract activity in the submarket rose 21 percent year over year in September 2025, then fell about 21 percent in early 2026 compared to the year before, according to CooperatorNews. That is not a typo repeated twice. The same submarket swung from a 21 percent gain to a 21 percent decline within a few months of reporting.

Citywide, August 2026 was the slowest August for signed Manhattan contracts since 2020, with both condo and co-op activity down 6 percent year over year and discounts off asking price widening. A submarket that small and that thin on transaction volume will produce headline swings that have more to do with which two or three buildings closed deals that month than with any underlying shift in demand. A single new-development launch or a single bulk resale can move Midtown's percentage more than it would move a larger submarket like the Upper West Side. Treat any single month's Midtown number as a data point, not a trend, until you have seen it hold for a full quarter.

A Buckling Floor Two Blocks From Grand Central

The conversion boom also carries a construction-phase risk that buyers evaluating anything nearby should understand firsthand. In July 2026, two structural columns buckled on the 21st floor of the former Pfizer conversion site, with floors sagging as high as the 26th. Nine surrounding buildings were evacuated and a frozen zone was established from First to Third Avenues while crews installed emergency shoring. No injuries were reported. Metro Loft attributed the buckling to added weight from the new floors being built on top of the original structure, and the site had already accumulated seven Department of Buildings violations and roughly $15,000 in fines over the prior year for falling debris, according to Fortune's reporting on the incident.

The city responded with a citywide inspection sweep of other active construction sites. Nothing about that incident should scare a buyer away from Midtown. But it is a concrete reminder that a conversion adding four new floors to a 1960s office tower is a materially different construction project than a boutique conversion like the DuArt Building, which is adding six floors to a much smaller footprint, or Parc Beaufort, which largely preserved its original 1908 structure. If you are looking at new construction or a recent conversion anywhere near an active project, ask specifically what is being built next door, how many floors are being added, and whether the developer has any open DOB violations. That is a fair, answerable question, and one most listing sheets will not raise on their own.

What This Means If You're Comparing Neighborhoods

The honest version of the Midtown story is that a historic amount of square footage is changing from office to residential use, and almost none of it is going to add to the condo inventory you would actually compete for. It will add rental supply, which may soften rents and give landlords less pricing power over time. It will add construction noise and scaffolding in specific corridors around Grand Central and Times Square through 2027. It will not flood the condo resale market the way the total unit counts in the headlines suggest.

If you are weighing Midtown against a neighborhood with less conversion activity, price that correctly. The relevant comparison is not "Midtown is getting thousands of new units," it is "Midtown is getting thousands of new rentals and a few dozen condos," which is a very different input into a resale or investment decision. And if you do want in on one of the smaller condo conversions, the list of live projects is short enough to track by name and worth watching closely rather than waiting for the wave to reach you.

A Few Questions Worth Asking Directly

Will the conversion boom eventually lower Midtown condo prices? Nothing in the current pipeline points that direction. The condo share of conversions is shrinking each year through 2028, not growing, so the supply pressure that would typically soften prices is landing almost entirely in the rental market instead.

Are any of the named condo conversions still available to buy into? Parc Beaufort, the DuArt Building and 95 Madison Avenue each represent a small number of units in buildings that are still completing construction or early in sales. Availability changes quickly in projects this size, so timing and direct outreach matter more than they would in a larger new development.

Should I wait to see how the Pfizer conversion settles before considering anything nearby? That depends on the specific building and its distance from an active construction site, not on Midtown as a whole. It is a fair question to bring to any listing near an active conversion, and one worth asking plainly rather than assuming it has already been addressed.

If you are weighing Midtown against another Manhattan neighborhood, or trying to figure out which of this year's conversions is worth watching for an actual condo listing, the Antigua Team tracks this building by building rather than by headline. Request your Global VIP consultation and we'll walk you through what's actually for sale, not just what's under construction.