Yes, property taxes can differ between new construction and existing homes in Houston. New construction homes are often assessed at their full market value, which can result in higher initial property taxes. Existing homes, on the other hand, may have a lower assessed value due to homestead exemptions and caps on annual increases. However, it's important to note that property tax rates can change over time, and the overall cost will depend on the home's location and value. Always consult with a local real estate expert and tax professional for the most accurate information regarding property taxes in specific Houston neighborhoods.