Steinberg Dickey Collective looks like the architect - they've got a non-functioning link to a proposed plan on their website.
http://www.sdcarchitects.com/on-the-boards
Scroll down to "West 25th Street - Heights"
Here's the link that doesn't work:
http://www.sdcarchitects.com/assets/useradds/2018.003_Heights-stucco__lg.jpg
And a smaller image of a plan view of the building:
http://www.sdcarchitects.com/assets/useradds/2018.003_Heights-stucco__med.jpg