subdivide

verb3

1. •
   To divide into smaller sections.
2. •
   To divide a plot of land into plots for residences; to convert open land into housing.

   • This used to be farmland before developers bought it and subdivided it.
3. •
   To divide divisions into smaller divisions.

   • The progenies of Cham and Japhet swarmed into colonies, and those colonies were subdivided into many others. — 1682