It will incentivize construction of dense housing, which distributes the same amount of land tax over a larger number of residents. People get displaced by gentrification because current policy encourages landlords to hoard old structures instead of building as much as possible.
Many counties in Texas have solved this by setting a 10% maximum year over year increase in property/land tax for people LIVING in their homes. There are also locks and exemptions carved out for those over 65 and disabled veterans.
Yeah there should be exemptions (i.e. standard deductions) to help low-income people (retirees with low savings, such as those dependent on social security or disabled, etc) and for people's primary residence.
What we don't want is a 50 year old who fully owns a $2 mil house and has $15 mil in the stock market and $1 mil in cash to be exempted from most property tax, but a 30 year old with $200k total assets to be on the hook for the full property tax rate. That doesn't make sense.