 Later provisions added over the years of "trial and error" include income restrictions to qualify, and capped rates on the amount of profit an owner is allowed to make in order to guarantees that the home will remain affordable forever.Three per cent per annum has been a justifiable number over the years.The workforce housing problem seemed to be an anomaly in the ski resorts, made worse due to limited land for development due to mountains and federally owned land, which made "sprawling" unrealistic.