Mayor Bill de Blasio announced Saturday that his administration had found spots for three charter schools for which his administration had previously rescinded space-sharing permission.

The prior administration of Mayor Michael Bloomberg had greenlighted the so-called "co-locations" of the Success Academy charter schools, run by a de Blasio political foe, Eva Moskowitz, but earlier this year de Blasio said he would halt them.

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The mayor later reversed course -- and the administration walked back a statement by his schools chancellor that the alternative schools were "on their own" -- after a multimillion-dollar ad campaign by the charter schools and public support for them by Gov. Andrew M. Cuomo.

The schools have some of the highest test scores in the state. Moskowitz said in a statement Saturday that she was "deeply grateful to the mayor for his support."

For the upcoming school year, the schools will be housed at three former Catholic schools -- Annunciation School on 131st Street in Manhattan, St. Pius X School on 249th Street in the Rosedale neighborhood of Queens, and Mother Cabrini High School, 701 Fort Washington Ave., also in Manhattan.