(Chris Samuels | The Salt Lake Tribune) Construction takes place Wednesday, Sept. 11, 2024, at Innovation Park at Holbrook Farms, a restricted-income townhome development in Lehi where people will pay different rates based on their income. Figures provided to The Tribune work out to about 30% or income. According to federal data, about 27% of Utah households spend more than 30% of their income on housing costs.