There’s a new green project under construction in New York’s West Chelsea Arts district that just so happens to be the first free-standing project for Neil M. Denari Architects. Known as High Line 23, or HL23, the design is defined, at least in part, by the small ground floor footprint of 40′ x 99′. As you can tell from the images, the building starts small and hovers 14 floors into the air over abandoned railroad tracks (note: those tracks will soon be a thriving green park area). The $22 million, 39,200 sf condo tower will have a private garden at the building’s base and 11 condo homes — nine full floor residences and a duplex penthouse on the top floor. Residences range in size from 1,850 – 3,600 sf and price from $2.7 – $10.5 million.