So much ado about one door -- and to think, this entryway was even named the "poor door."

The Upper West Side 33-storey tower, which infamously features different entry points for its 219 luxe condo units and 55 low-cost apartments, is once again causing quite a stir.

The New York Times reports about the almost 90,000 would-be tenants vying for the limited slots of the building's affordable-rental wing. The overwhelming applications would have to undergo the lottery process in order to draw out the select few.

"The units at Extell's building are eligible to households with incomes of $30,240 to $50,340, with rents listed at $1,082 for a two-bedroom, $895 for a one-bedroom and $833 for a studio," according to The New York Times.

Apart from the entrance, the tenants for these affordable units would have their own address at 470 West 62nd Street, while their more affluent neighbors get to enjoy the building's luxurious amenities and other perks at 50 Riverside Boulevard.

Just last year, the poor-door policy drew flak from the public and some elected officials. "The two-door system is an affront to New Yorkers' belief in fairness and diversity in our city," said Manhattan Borough President Gale Brewer via the New York Daily News.

It's not every day that you'll find a door, at least in its metaphysical sense, which has been so much maligned and despised, but so desperately sought after at the same time.

Gary Barnett, founder and president of Extell Development Company, simply shrugged off the criticisms thrown against his lofty masterpiece, the One Riverside Park, situated along Riverside Boulevard in Manhattan.

"I guess people like it," he told the Times. "It shows that there's a tremendous demand for high-quality affordable housing in beautiful neighborhoods." The shrewd 58-year-old real-estate developer even went so far as to say that the poor-door issue was simply a "made-up controversy." For him, what matters is to provide affordable housing.

Not that the issue is an unprecedented case. This year alone, 698 units from more than 10 affordable-housing lotteries also drew in some 486,000 applications, according to  the Department of Housing Preservation and Development, the NY Curbed also notes.

This segregation of building occupants based on social class stems from the fact that New York is one of those cities encouraging developers to build affordable homes in exchange for incentives such as tax rebates, subsidies, or, in the case of Extell's One Riverside Park, more square feet to build on.

One57 residential tower, another project of Extell, was also a subject of controversy when the owner of the skyscraper's $100 million penthouse only paid a paltry sum of just $17,268 in property tax under the highly-disputed tax exemption program, as was reported in Realty Today.