New Jersey Duplexes Elicit Mixed Reactions

Modern, two-unit residences are proliferating in northern New Jersey communities, signaling for some a boon to the housing supply and to others a loss of historic architecture.

1 minute read

June 8, 2025, 5:00 AM PDT

By Diana Ionescu @aworkoffiction


Google Street view screen shot of modern duplex built between two historic homes in Cliffside Park, New Jersey.

A new duplex sits between two historic homes in Cliffside Park, New Jersey. | Google Maps / Street View

A wave of duplex construction is sweeping northern New Jersey, writes David Brand in Gothamist, with modernist duplexes rapidly replacing older single-family homes. “Some residents say they hate the duplexes, arguing the cookie-cutter structures are out of place and intended to appeal to out-of-town yuppies. Others say they're good for the town, and love what they see as chic, contemporary abodes close to New York City.”

The new homes usually feature a roof deck, large windows, and usually a one-car garage per unit. Brand dubs them “Cliffside Cubes,” a nod to the high concentration of the duplexes in Cliffside Park. “Current zoning rules there make it easy to replace many single-family homes with duplexes without special approval from the town — unlike some other neighboring cities — as long as the lots are 5,000 square feet.”

While some residents decry the loss of historic homes, “Housing experts, on the other hand, welcome the kind of development taking place in Cliffside Park and other towns a short bus-ride from the Port Authority. Replacing single-family homes with duplexes, or, in some cases, triplexes adds the kind of ‘gentle density’ needed to address a housing shortage, said Regional Plan Association Vice President Zoe Baldwin.”

Wednesday, June 4, 2025 in Gothamist

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