(1) In accordance with s. 4(f), Art. VII of the State Constitution, a county may provide for a reduction in the assessed value of homestead property which results from the construction or reconstruction of the property for the purpose of providing living quarters for one or more natural or adoptive parents or grandparents of the owner of the property or of the owner’s spouse if at least one of the parents or grandparents for whom the living quarters are provided is at least 62 years of age.
(2) A reduction may be granted under subsection (1) only to the owner of homestead property where the construction or reconstruction is consistent with local land development regulations.
(3) A reduction in assessment which is granted under this section applies only to construction or reconstruction that occurred after the effective date of this section to an existing homestead and applies only during taxable years during which at least one such parent or grandparent maintains his or her primary place of residence in such living quarters within the homestead property of the owner.
(4) Such a reduction in assessment may be granted only upon an application filed annually with the county property appraiser. The application must be made before March 1 of the year for which the reduction is to be granted. If the property appraiser is satisfied that the property is entitled to a reduction in assessment under this section, the property appraiser shall approve the application, and the value of such residential improvements shall be excluded from the value of the property for purposes of ad valorem taxation. The value excluded may not exceed the lesser of the following:(a) The increase in assessed value resulting from construction or reconstruction of the property; or
(b) Twenty percent of the total assessed value of the property as improved.
(5) At the request of the property appraiser and by a majority vote of the county governing body, a county may waive the annual application requirement after the initial application is filed and the reduction is granted. Notwithstanding such waiver, an application is required if property granted a reduction is sold or otherwise disposed of, the ownership changes in any manner, the applicant for the reduction ceases to use the property as his or her homestead, or the status of the owner changes so as to change the use of the property qualifying for the reduction pursuant to this section.
(6) The property owner shall notify the property appraiser when the property owner no longer qualifies for the reduction in assessed value for living quarters of parents or grandparents, and the previously excluded just value of such improvements as of the first January 1 after the improvements were substantially completed shall be added back to the assessed value of the property.
1(7)(a) If the property appraiser determines that for any year within the previous 10 years a property owner who was not entitled to a reduction in assessed value under this section was granted such reduction, the property appraiser shall serve on the owner a notice of intent to record in the public records of the county a notice of tax lien against any property owned by that person in the county, and that property must be identified in the notice of tax lien. Any property that is owned by that person and is situated in this state is subject to the taxes exempted by the improper reduction, plus a penalty of 50 percent of the unpaid taxes for each year and interest at a rate of 15 percent per annum. Before such lien may be filed, the owner must be given 30 days within which to pay the taxes, penalties, and interest. Such lien is subject to s. 196.161(3). (b)1. If a reduction is improperly granted due to a clerical mistake or omission by the property appraiser, the person who improperly received the reduction may not be assessed a penalty or interest. Back taxes shall apply only as follows:a. If the person who received the reduction in assessed value as a result of a clerical mistake or omission voluntarily discloses to the property appraiser that he or she was not entitled to the reduction in assessed value before the property appraiser notifies the owner of the mistake or omission, no back taxes shall be due.
b. If the person who received the reduction in assessed value as a result of a clerical mistake or omission does not voluntarily disclose to the property appraiser that he or she was not entitled to the limitation before the property appraiser notifies the owner of the mistake or omission, back taxes shall be due for any year or years that the owner was not entitled to the limitation within the 5 years before the property appraiser notified the owner of the mistake or omission.
2. The property appraiser shall serve upon an owner 2who owes back taxes under sub-subparagraph 1.b. a notice of intent to record in the public records of the county a notice of tax lien against any property owned by that person in the county, and such property must be identified in the notice of tax lien. The property appraiser must include with such notice information explaining why the owner is not entitled to the limitation, the years for which unpaid taxes are due, and the manner in which unpaid taxes have been calculated. Before such lien may be filed, the owner must be given 30 days within which to pay the taxes, penalties, and interest. Such lien is subject to s. 196.161(3). 
