 And if they don't, they're going to face fines of up to $1,250 per day. Now, that bill would apply to things like high-rises, walk-ups, multifamily buildings, even those that are owned by the city. He said it's going to save lives, according to the city's health department. Every summer, about 350 New Yorkers die from heat-related illnesses. The property owners, though, they're worried about the consequences.