200 Amsterdam Avenue, a potential 668-foot tall residential apartment building that would be the tallest building on the Upper West Side if it's completed, got a go-ahead from the Department of Buildings after a challenge to the building's zoning failed.

In July, the development's opponents officially filed a challenge, arguing that project's air rights were "gerrymandered" from a neighboring lot in order to give developer SJP Properties the 10,000 square feet it needed to put up the entire tower. The DOB slapped 200 Amsterdam with a Notice of Intent to Revoke in July, halting work on the site, while they reviewed whether the building complied with the city's Open Space Requirements.

That review is apparently over, as Crain's first reported: the DOB has lifted the notice and allowed the construction of the building to go forward, pending the filing of new permits. The DOB said that SJP Properties furnished them with additional information about the building's zoning calculations that answered their concerns, and that the company wouldn't have to make structural changes to the project.

City Council Member Helen Rosenthal, who represents the area where the building would go up, criticized the DOB's decision in a statement issued Tuesday evening.

"I strongly object to the Department of Buildings’ action lifting the halt on the proposal at 200 Amsterdam Avenue," Rosenthal said. "The many questions about the building’s use of Open Space that were raised in the Committee for Environmentally Sound Development’s challenge simply have not been answered to my satisfaction."

Rosenthal also said she continues to believe the project is out of scale and context to the surrounding neighborhood, and promised to continue working with community groups to oppose the development.

"We're very disappointed," said William Raudenbush, a City Council candidate and activist with the Committee for Environmentally Sound Development. "It's very important the Upper West Side pay attention, because this is the future of our whole neighborhood. When you look to the south and the buildings along Central Park, you wonder what's next. The Upper West Side values its quality of life and its sunlight."

The DOB didn't issue a statement online explaining why the challenge to the lot failed, but Council Member Rosenthal's spokesperson Sarah Crean told Gothamist that the department "informed us—in essence—that the developer has satisfactorily answered the questions posed by the zoning challenge filed by the Committee for Environmentally Sound Development."

SJP's publicist did not immediately respond to request for comment.

[UPDATE] SJP sent the following statement about the development's approval:

Following a thorough review and audit of our application for 200 Amsterdam, the New York City Department of Buildings has determined the zoning for the site is valid and that the building's design complies with the zoning in all aspects. Designed by Elkus Manfredi Architects with interiors by Cetra Ruddy, 200 Amsterdam will be contextual to the classic architecture of the Upper West Side. We look forward to delivering a world-class building, and working closely with the local neighborhood and community officials throughout the construction process.