Some revised designs for the new Skidmore Owings & Merrill-designed high-rise at First and Folsom have arrived, and it's going to be a pretty one. The project is primarily residential, with 545 new units of housing, 80 percent of which will be market rate. 20 percent, or 109 units, will be below-market-rate and reserved for households making 50 percent of area median income.

The developers, who are Avant Housing and Essex Property Trust, plan to take over the Block 9 parcel in February at a price of $43,630,000. Construction, currently, begins in July 2016, with an estimated occupancy date of mid-2019.

The project is one of a gaggle of new skyscrapers coming to the Transbay District and featuring high-profile architects.

Socketsite has some more renderings here.