Teasing out the confusion: 461 Dean Street misleadingly used for both B2 and B3 towers

So how exactly could the Real Deal report in Timeline: The massive BK projects that beat the 421a clock:

A few major projects approved in the 421a crunch period were closer to Downtown. Forest City Ratner got the go-ahead on a 305-unit plan at 461 Dean Street. The tower, known as B2, is expected to be the world’s tallest modular structure when it is completed. That permit was issued on June 10.

Isn't the B2 tower 363 units, and wasn't it approved years ago? Yes.

Was it somehow shrunk? No.

So how could they get it wrong? The documents, it turns out, are confusing. 461 Dean Street can mislead people, because it has been used for both B2 and neighbor B3.

Drilling down

B2, from Zoning Diagram

The tower that got permitted is designated 461 Dean Street, but it's not the 322-foot B2.

Rather it's the 218-foot B3, the tower better known as 38 Sixth Avenue. 

B2 is 461 Dean Street, Lot 2, according to this DOB filing, which also identifies it as Block 1118, Lot 2.

But B3 is also 461 Dean Street, Lot 2, according to this DOB filing, which also identifies it as Block 1118, Lot 2.

But there are two different zoning diagrams associated with the 461 Dean Street address, according to the Department of Buildings.

B3, from Zoning Diagram

The separate zoning diagrams, linked here and posted below, both clarify and confuse, because they identify different blocks, and new numbers for lots.

The first zoning diagram, for B2 (above), identifies the location as 461 Dean Street, Block 1127, Tent.  [Tentative?] Lot 2. As far as I can tell, Block 1127 no longer exists. Indeed, as noted above, it's also called Block 1118

The second zoning diagram, for B3, identifies the location as 461 Dean Street, Lot 3, but also Block 1118, Lot 2.

Bottom line: those filing (and reading) should be more careful.

B2 Zoning Diagram, Atlantic Yards/Pacific Park

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B3 Zoning Diagram, Atlantic Yards/Pacific Park