In this subchapter:
(1) "Developer" means a person who owns a tract of land within a district and who has divided or proposes to divide the tract into two or more parts to lay out a subdivision of the tract, including an addition to a municipality, or to lay out suburban, building, or other lots, and to lay out streets, alleys, squares, parks, or other parts of the tract intended to be dedicated to public use or for the use of purchasers or owners of lots fronting on or adjacent to the streets, alleys, squares, parks, or other parts.
(2) "Facilities" means improvements constructed by a developer for a district.