One way to do this is to modify property tax into a Land Value Tax that's only accessed against land values, rather than land + buildings. This means property owners aren't "punished" for improving their buildings or building larger ones.

But this can also be achieved in current property tax regimes by upzoning to allow more density. This will raise the value of the land (because it's now possible to build more density on it), which once reassessed, will also raise the property taxes.