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Zoning Setback and Lot Coverage Calculator

Buildable area from lot size and front, side and rear setbacks, capped by the maximum lot coverage, with a site plan of the buildable envelope.

How to use

  1. Enter the lot width (along the street) and lot depth.
  2. Enter the maximum lot coverage from your zoning code, as a percentage.
  3. Enter the front, side and rear setbacks. The side setback applies to both sides.
  4. Read the site area, the buildable envelope inside the setbacks, and the largest allowed footprint: the envelope or the coverage limit, whichever is smaller.
  5. Length fields accept the same entries as the Feet and Inches Calculator: 9' 6, 7 3/4", 2743mm or 3m + 6'. A plain number means inches, or millimeters when the Units panel is set to metric.

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