Did a little digging... The law as I understand it doesn't effect this site...
March 4, 1983
BAN ON 'SILVER' BUILDINGS IS APPROVED BY THE CITY
By MAURICE CARROLL
''Sliver'' buildings - tall, narrow residences that tower above their neighbors - were banned yesterday by the Board of Estimate. The board voted unanimously to change the zoning code after 24 witnesses stepped to the microphones in City Hall to criticize the slivers. Some said that bulldozers had been digging furiously to avoid the ban, which takes effect immediately. Work can be continued only on those with foundations in place.
The altered law says buildings in residential areas on lots up to 45 feet wide can be no taller than the width of the street they face or the lowest building next door, whichever is larger. The restrictions apply in designated areas, including the blocks between Park and Lexington Avenues in the 60's through the 90's. A Recent Development
When current laws were written, testified George Lewis of the American Institute of Architects, ''no one imagined'' slivers would be built. But, as real-estate market prices rose and standards declined, some owners decided to ''squeeze every last possible dollar out of real estate,'' he said.
Applause broke out as representatives of the board members - the three citywide elected officials and five Borough Presidents - voted. Only Vicki Streitfeld, who sits in for Andrew J. Stein, the Manhattan Borough President, spoke, calling the slivers ''offensive''.
Before the vote, William H. Whyte, author of ''The Exploding Metropolis,'' testified that ''the barn door is still wide open.'' His East 94th Street neighborhood, he said, had been threatened with construction of a building 18 feet wide and ''32 ridiculous stories'' high.
At 126 East 85th Street, said Jane Miller, who lives nearby, ''there was such a rush to get the foundations in that yesterday they brought in bulldozers.''
Peter Jones, another neighbor of the 85th Street site, where a 19-story structure would rise on a 40-foot lot, said the builders' ''haste has become desperation.''
''As we speak,'' he said, ''they are back at work.'' The next-door neighbor, Marcelle Greenfield, said: ''There were two bulldozers there yesterday. My building shook. Please act quickly.''
Councilman Robert J. Dryfoos, a Democrat who represents the Upper East Side, where slivers have proliferated in the last few years, said that without the zoning changes there were potential sites for 477 more.
In another action, the board delayed, to March 18, a vote on upholding landmark status for Lever House, the 31-year-old glass office tower on Park Avenue at 53d Street. Such status, recommended by the Landmarks Preservation Commission, would block plans by owners of the land to replace the structure with a bigger skyscraper.