Rare NYC penthouse spanning 2 buildings — and connected by a unique outdoor bridge — asks $2.75M

What’s better than one apartment? Two, of course. And what’s better than two? A rare bridge hovering over city streets that joins them together.

Indeed, if you ever wanted to traverse a bridge heading home from work — or host a dinner party suspended between two buildings above Manhattan with nothing below you — this apartment is the one for you.

Just a handful of city apartments come with their own bridges — and now, one that’s part of a $2.75 million Upper East Side penthouse listing is sweetening the local pot.

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The dramatic duplex, at 52 E. 78th St., most notably boasts this landmarked, turn-of-the-century steel-and-concrete bridge — along with three private balconies and a charming rooftop garden with a white picket fence and a dining area.

It’s available for the first time in almost 20 years. 

The seller, who requested anonymity, told Gimme Shelter it makes for unique and “unforgettable” dinner party conversation. 

“It’s a true townhouse in the sky. I even negotiated with the building to transform the bridge roof into a stunning garden. Living there felt like inhabiting a work of art,” the seller said.

The trophy asset includes three bedrooms and 2.5 baths. There’s also a chef’s kitchen. 

This history of this bridge dates to the now-defunct Finch College — an elite liberal arts college for women. It connected the school to its dormitory. 

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Now, it bridges an apartment that now serves as an office-slash-bedroom at 61 E. 77th St. to the duplex penthouse — and into its living room with 18-foot ceilings and a fireplace. A floating staircase leads to an upper level with two bedrooms, a bath and the roof garden. 

The modernized bridge now comes with a glass ceiling and an under-lit glass floor, framed by triangular windows with city views; the original rectangular windows are preserved on the opposite side. 

The seller bought it all for $735,000. It then underwent a two-year, million-dollar renovation led by the structural engineer of the Metropolitan Museum of Art, and was curated in collaboration with Kushner Studios. 

The listing brokers are Mike Barit and Justin Rubinstein, of Compass.