(a) An extension of restrictions under this chapter takes effect on the date the petitions, written ballots, or both, as applicable, sufficient to reflect the consent required by Section 212.003 are filed and recorded in the real property records of the county in which the subdivision is located.
(b) Subject to Section 212.007, an extension of restrictions under this chapter is for a period equal to the original term of the restrictions or a shorter period agreed to by the owners of a majority of the lots in the subdivision in the petitions, written ballots, or both, as applicable, signed under Section 212.003.