Impervious Surface Calculator

Check proposed hardscape against the district maximum and the stormwater-review trigger.

Zoning districtLot area (sq ft)Building footprint (sq ft)Driveway & walks (sq ft)Other hardscape (sq ft)Patios, sheds, pool decks.Total disturbed area (sq ft)Land disturbance of 5,000 sq ft or more triggers stormwater review.

Enter a lot area to check coverage against the district maximum.

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Reference only. This is general information, not legal advice, and not engineering advice or an official determination of code compliance. These figures are hand-transcribed from public sources and may be inaccurate or out of date. Independently verify against the current code and with the authority having jurisdiction (AHJ) before you build, buy, or file — you rely on these results at your own risk. Indexed from public Minneapolis municipal sources.