It’s no secret that rent around Salt Lake City is really high. And if you drive around downtown, you’ll see tons of new apartment complexes under construction. But the thing is, most Utahns can’t afford to live in them. At least, not according to the common definition of affordable housing: about 30 percent of your yearly income. There’s a staggering need for cheaper apartments around the state, but hardly any incentives to build them. Because those pricey places — they’re not sitting empty.