Provide exemption for certain modifications to residential property

HB 412 proposed a new property tax exemption for homeowners who modify their existing residential properties to add living space. This exemption would apply to the increase in market value due to the modification, up to a limit of 15% of the property's market value before the modification. However, it would not apply to modifications made within three years of new construction, and only one exemption could be granted every six years, terminating upon the sale of the property. The Department of Revenue would automatically grant this exemption, which was set to begin in tax years after December 31, 2025.