unbuild

From un- +‎ build.

unbuild (third-person singular simple present unbuilds, present participle unbuilding, simple past and past participle unbuilt)

1. (transitive) To dismantle or deconstruct (something previously built).
   • 2003, Barbara Damrosch, The Garden Primer, page 5:

     Anything you build or plant on your neighbor's land you might have to unbuild or unplant in the future.

   • 2007 July 2, Richard Eder, “When People, Culture and Even Time Are Suspect”, in New York Times‎^[1]:

     His building and unbuilding, both, are a slog.