Be a part of it all at Hot Metal Flats! Located in the lively Southside neighborhood of Pittsburgh, PA, Hot Metal Flats is the perfect choice if you want to take urban living to the next level. Move into a studio, one or two-bedroom apartment with premium finishes, fully-equipped kitchens and charming Juliette balconies or patios. Apartments have breathtaking views of the city, river, and the neighboring Southside Slopes.