Indiana Code Title 36. Local Government § 36-4-3-15.3

Sec. 15.3. (a) As used in this section, “prohibition against annexation” means that a municipality may not make further attempts to annex certain territory or any part of that territory.

(b) As used in this section, “settlement agreement” means a written court approved settlement of a dispute involving annexation under this chapter between a municipality and remonstrators.

(c) Under a settlement agreement between the annexing municipality and either:

the parties may mutually agree to a prohibition against annexation of all or part of the territory by the municipality for a period not to exceed twenty (20) years.  The settlement agreement may address issues and bind the parties to matters relating to the provision by a municipality of planned services of a noncapital nature and services of a capital improvement nature (as described in section 13(d) of this chapter), in addition to a prohibition against annexation.  The settlement agreement is binding upon the successors, heirs, and assigns of the parties to the agreement.  However, the settlement agreement may be amended or revised periodically on further agreement between the annexing municipality and landowners who meet the qualifications of subdivision (1) or (2).