Well, increasing property taxes or interest rates (or anything else that increased the monthly cost) would reduce the sticker price, but it doesn't by itself ma

Well, increasing property taxes or interest rates (or anything else that increased the monthly cost) would reduce the sticker price, but it doesn't by itself make the housing more affordable except perhaps by reducing investment demand. Increasing property taxes in tandem with larger homeowner's exemptions might be more effective in only reducing investor demand (but potentially might hurt renters to some extent, though renting is a more efficient market...). But, building more densely is a better solution...