For tonight's public meeting, questions about the platform's timetable and the B12/B13 square footage

My original post previewing the agenda for tonight's Quality of Life meeting (including whether the developer will pay for Site 5 development rights) left out a few things, including issues I've raised since then:

• given the disclosure that the first phase of the platform would last three years, when does the developer expect to start residential towers, and how would the 2025 affordable housing deadline be met?
• how long would the second phase of the platform take, and how does that affect the project schedule?
• what's the expected square footage at the B12 and B13 sites and when will construction start?

About B12/B13

Note that an application for foundation work, filed 11/4/19, is pending.

Regarding square footage, I wrote 10/23/19 that a permit filed by TF Cornerstone to build the two towers on the southeast block of the site was confusing, since it said (see below) the buildings would have 925,681 square feet, far more than officially approved. 

As I wrote, B12 was originally supposed to have a maximum of 317,185 square feet and B13 327,215 square feet, which adds up to 644,400. Later, 10,000 square feet were transferred to B12, which should mean a total of 654,400 square feet. 

The permit says it will have 659,363 square feet of residential and commercial space.

How could the total square footage be 925,851 square feet? Adding 96,000 below-ground square feet for the fitness center and field house to 659,363 square feet of the building delivers 755,363 square feet.

If the 455 parking spaces are being counted, at 200 square feet--as Empire State Development has said--they'd add up to 91,000 square feet. That leaves 79,488 square feet.