Gigi Hadid's Neighboring Apartment Created in Her Own Image

Gigi Hadid doesn't need a mirror in her NYC apartment ... all she has to do is look out the window.

An enormous billboard hangs in eyeshot of Gigi's pad ... pimping Stuart Weitzman's luxury boots.

She's got her own collection with the company.

Way better than a Selena Pantene billboard, right?