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Council approves Casita Village rezoning after flooding debate; developers had promised additional modeling and basin dedication
Summary
After months of dispute about flood risk, Tucson Mayor and Council authorized a rezoning April 22 for a 162‑unit Casita Village at La Mariposa contingent on larger retention basins, updated hydrology and an 11‑acre recharge/detention basin dedication.
The Council authorized the rezoning of roughly 19.8 acres for the Casita Village at La Mariposa after an extended hearing and dispute over upstream flooding risks and the adequacy of hydrologic modeling. Pima County and city staff, the developer’s engineers and neighborhood experts debated the modeling and whether the project would raise water surface elevations offsite.
Developer commitments and ROSAC-style review process The developer agreed to several measures during an extended pre‑council process: an updated, higher‑resolution topographic survey and hydrology; submission of a CLOMR to FEMA; increased detention/retention sizing (developer committed to 120% of code requirement for retention basins); and an agreement to dedicate an…
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