Only 3 areas in Westchester County adjust taxes upon resale. Those communites are Broxville, Pelham & Rye. Otherwise taxes are adjusted by the assesor when homeowners renovate certain aspects of the house or add square footage via expansion or adding living space.
The assessors are using different vehicles to increase property taxes on homes. Also, the assessors are beginning to use the MLS to check homes vis a vis the property cards on file and see if they are the same and in some instance trying to adjust taxes.
Old homes tend to have lower taxes because when they were originally built the assessment and the tax rates were much lower and the increases over the years were on a minisual base. Newer homes have higher assessments and the tax rates now are much higher.
If I can be of further assistance, please feel free to reach out with any specific questions you may have.
Legends Realty Group
Confer with county tax office receive more detail information regarding your question.